TWI616408B - Apparatus of treating organic sludge and application thereof - Google Patents
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Abstract
本發明有關於一種有機污泥處理設備及其應用。此有機污泥處理設備包含有機污泥供應槽、預處理系統及生物脫氮系統。有機污泥供應槽係用以容置有機污泥，預處理系統係連接有機污泥供應槽，且生物脫氮系統係連接預處理系統。前述之生物脫氮系統包含脫硝單元、生物膜反應器、排泥管及回泵單元。脫硝單元連接預處理系統，生物膜反應器連接脫硝單元，並提供已處理污泥。前述之排泥管及回泵單元均連接生物膜反應器。排泥管排出已處理污泥之一部分，且回泵單元輸送已處理污泥之剩餘部分至有機污泥供應槽中。 The invention relates to an organic sludge treatment device and an application thereof. The organic sludge treatment equipment comprises an organic sludge supply tank, a pretreatment system and a biological nitrogen removal system. The organic sludge supply tank is for accommodating organic sludge, the pretreatment system is connected to the organic sludge supply tank, and the biological nitrogen removal system is connected to the pretreatment system. The aforementioned biological nitrogen removal system comprises a denitration unit, a biofilm reactor, a sludge discharge pipe and a return pump unit. The denitration unit is connected to the pretreatment system, the biofilm reactor is connected to the denitration unit, and the treated sludge is provided. The aforementioned drain pipe and return pump unit are connected to the biofilm reactor. The drain pipe discharges a portion of the treated sludge, and the return pump unit transports the remaining portion of the treated sludge to the organic sludge supply tank.
Description
本發明係有關一種有機污泥處理設備，特別是提供一種可減少排泥量之有機污泥處理設備及其應用。 The invention relates to an organic sludge treatment device, in particular to an organic sludge treatment device capable of reducing sludge discharge and an application thereof.
於各種製造業中，由於原料之選用或製程之限制，各個生產步驟均會產生廢污泥或廢水。依據製程不同，此些廢污泥或廢水可包含有機物或無機物。於早期環保議題未被重視之時，由於此些廢棄物難以回收再利用於生產流程中，各廠商多任意傾倒此些廢棄物，而造成環境之衝擊。近年來，隨著環保意識之抬頭，此些廢棄物一般係交由廢棄物處理公司代為處理，或於廠區內建構處理設備，以即時處理廢棄物。 In various manufacturing industries, waste sludge or wastewater is produced in various production steps due to the selection of raw materials or the limitations of the process. Depending on the process, such waste sludge or wastewater may contain organic or inorganic materials. When the early environmental issues were not taken seriously, these wastes were difficult to recycle and reused in the production process, and many manufacturers dumped these wastes at will, causing environmental impact. In recent years, with the rise of environmental awareness, these wastes are generally disposed of by waste disposal companies, or construction of processing equipment in the plant area to treat waste immediately.
為了降低污泥之總排放量，一般之污泥處理設備係將污泥儲放於厭氧消化池，並利用微生物對污泥進行厭氧消化。惟，厭氧消化所須之時間較長，而導致廠區須較大之區域設置厭氧消化池。再者，厭氧消化後之污泥須輸送至另一處理設備，以進一步去除污泥中之金屬離子、總氮、總磷及溶解性有機物，而導致處理成本高升。 In order to reduce the total discharge of sludge, the general sludge treatment equipment stores the sludge in an anaerobic digester and uses anaerobic digestion of the sludge by microorganisms. However, the time required for anaerobic digestion is longer, resulting in an anaerobic digestive pond in a larger area of the plant. Furthermore, the sludge after anaerobic digestion must be transported to another processing facility to further remove metal ions, total nitrogen, total phosphorus and dissolved organic matter in the sludge, resulting in high processing costs.
另一種污泥減量方法係先將污泥輸送至高溫高壓之儲槽中，以利用高溫高壓對污泥進行熱水解處理，而生成容易代謝之有機小分子。然後，將此些有機小分子輸送至厭氧消化槽中，並對其進行高溫厭氧消化，以縮短產氣高峰及污泥停留時間，進而縮短處理週期。 Another sludge reduction method is to transport the sludge to a high temperature and high pressure storage tank to thermally hydrolyze the sludge by high temperature and high pressure to form small organic molecules that are easily metabolized. Then, the organic small molecules are transported to the anaerobic digestion tank, and subjected to high temperature anaerobic digestion to shorten the gas production peak and the sludge residence time, thereby shortening the treatment cycle.
此方法雖可藉由將污泥轉換為有機小分子來增加厭氧消化之效率，惟高溫高壓之環境及高溫厭氧消化均須耗費較多之能量，且高溫厭氧消化製程亦較為複雜，而難以有效率地處理污泥。 Although this method can increase the efficiency of anaerobic digestion by converting sludge into organic small molecules, high temperature and high pressure environment and high temperature anaerobic digestion require more energy, and the high temperature anaerobic digestion process is also complicated. It is difficult to treat sludge efficiently.
為了解決前述厭氧消化之缺陷，又一種方法係藉由水解反應將污泥轉換為有機小分子，並利用生物薄膜反應器處理水解後之有機小分子。其中，生物薄膜反應器中之微生物可進一步水解污泥，並分解有機物，而達到污泥減量之功效。 In order to solve the aforementioned defects of anaerobic digestion, another method is to convert the sludge into organic small molecules by a hydrolysis reaction, and to treat the hydrolyzed organic small molecules by using a biofilm reactor. Among them, the microorganism in the biofilm reactor can further hydrolyze the sludge and decompose the organic matter to achieve the effect of sludge reduction.
然而，隨著微生物消化污泥之時間增加，微生物之菌群易隨之改變，而導致生物薄膜反應器無法消化污泥，進而造成系統之負擔。 However, as the time for microbial digestion of the sludge increases, the microbial flora tends to change, and the biofilm reactor cannot digest the sludge, thereby causing a burden on the system.
有鑑於此，亟須提供一種有機污泥處理設備及其應用，以改進習知有機污泥處理設備之缺陷。 In view of this, it is not necessary to provide an organic sludge treatment facility and its application to improve the drawbacks of conventional organic sludge treatment equipment.
因此，本發明之一態樣是在提供一種有機污泥處理設備，其可藉由回泵單元回收已處理污泥之剩餘部分， 而減少污泥排出量，且回收之剩餘部分亦可作為脫硝單元之脫硝反應的誘發劑，而不會增加生物脫氮系統之負擔。 Accordingly, it is an aspect of the present invention to provide an organic sludge treatment apparatus which can recover the remainder of the treated sludge by a pump unit. The sludge discharge amount is reduced, and the remainder of the recovery can also be used as an inducer of the denitration reaction of the denitration unit without increasing the burden on the biological nitrogen removal system.
本發明之另一態樣是在提供一種有機污泥處理方法，其係利用前述之有機污泥處理設備處理有機污泥。 Another aspect of the present invention provides an organic sludge treatment method for treating organic sludge by the aforementioned organic sludge treatment equipment.
根據本發明之一態樣，提出一種有機污泥處理設備。此有機污泥處理設備包含有機污泥供應槽、預處理系統及生物脫氮系統。有機污泥供應槽係用以容置有機污泥。預處理系統係連接有機污泥供應槽，且生物脫氮系統連接預處理系統。 According to an aspect of the present invention, an organic sludge processing apparatus is proposed. The organic sludge treatment equipment comprises an organic sludge supply tank, a pretreatment system and a biological nitrogen removal system. The organic sludge supply tank is used to accommodate organic sludge. The pretreatment system is connected to the organic sludge supply tank, and the biological nitrogen removal system is connected to the pretreatment system.
前述之生物脫氮系統包含脫硝單元、生物膜反應器、排泥管及回泵單元。脫硝單元連接預處理系統，且生物膜反應器連接脫硝單元，其中此生物膜反應器係提供已處理污泥。排泥管及回泵單元均連接生物膜反應器。其中，排泥管係用以排出已處理污泥之一部分，且回泵單元係用以輸送已處理污泥之剩餘部分至有機污泥供應槽中。 The aforementioned biological nitrogen removal system comprises a denitration unit, a biofilm reactor, a sludge discharge pipe and a return pump unit. The denitration unit is connected to the pretreatment system, and the biofilm reactor is connected to the denitration unit, wherein the biofilm reactor provides the treated sludge. Both the drain pipe and the return pump unit are connected to the biofilm reactor. Wherein, the mud discharge pipe is for discharging one part of the treated sludge, and the return pump unit is for conveying the remaining part of the treated sludge to the organic sludge supply tank.
依據本發明之一實施例，前述之預處理系統係物理處理系統或化學處理系統。 According to an embodiment of the invention, the aforementioned pretreatment system is a physical processing system or a chemical processing system.
依據本發明之另一實施例，前述之化學處理系統包含水解單元及中和單元。其中，水解單元連接有機污泥供應槽，且中和單元連解水解單元及脫硝單元。 According to another embodiment of the invention, the aforementioned chemical processing system comprises a hydrolysis unit and a neutralization unit. Wherein, the hydrolysis unit is connected to the organic sludge supply tank, and the neutralization unit is connected to the hydrolysis unit and the denitration unit.
依據本發明之又一實施例，前述之水解單元係加鹼水解單元。 According to still another embodiment of the present invention, the aforementioned hydrolysis unit is an alkali hydrolysis unit.
依據本發明之再一實施例，前述之回泵單元更包含流量調整元件，以調整剩餘部分之回收量。 According to still another embodiment of the present invention, the back pump unit further includes a flow regulating element to adjust the amount of recovery of the remaining portion.
根據本發明之另一態樣，提出一種有機污泥處理方法。此有機污泥處理方法係先提供前述之有機污泥處理設備。然後，進行預處理製程，並接著進行調整製程，其中預處理製程係設定回泵單元之回收量為0重量百分比。 According to another aspect of the present invention, an organic sludge treatment method is proposed. This organic sludge treatment method first provides the aforementioned organic sludge treatment equipment. Then, a pretreatment process is performed, and then an adjustment process is performed, wherein the pretreatment process sets the recovery amount of the pump unit back to 0 weight percent.
前述之預處理製程係先利用預處理系統對有機污泥進行第一轉換步驟，以生成第一污泥小分子。然後，添加有機質至生物脫氮系統中，並利用生物脫氮系統對第一污泥小分子進行第一處理步驟，以生成第一已處理污泥。接著，量測第一已處理污泥之第一溶解態化學需氧量。 The foregoing pretreatment process first uses a pretreatment system to perform a first conversion step on the organic sludge to generate a first sludge small molecule. Then, the organic matter is added to the biological nitrogen removal system, and the first sludge small molecule is subjected to a first treatment step using a biological nitrogen removal system to generate the first treated sludge. Next, the first dissolved chemical oxygen demand of the first treated sludge is measured.
前述之調整製程係先進行調整步驟，以調整回收量大於0重量百分比且小於100重量百分比，並以所調整之回收量將前述第一已處理之剩餘部分輸送至有機污泥供應槽中。然後，利用預處理系統對有機污泥及回收之剩餘部分進行第二轉換步驟，以生成第二污泥小分子。接著，利用生物脫氮系統對第二污泥小分子進行第二處理步驟，以生成第二已處理污泥，其中第二處理步驟不添加有機質。之後，量測第二已處理污泥之第二溶解態化學需氧量，並判斷第二溶解態化學需氧量是否等於前述之第一溶解態化學需氧量。 The foregoing adjustment process first performs an adjustment step to adjust the recovery amount to more than 0% by weight and less than 100% by weight, and deliver the first processed portion to the organic sludge supply tank with the adjusted recovery amount. Then, the organic sludge and the remainder of the recovery are subjected to a second conversion step using a pretreatment system to generate a second sludge small molecule. Next, the second sludge small molecule is subjected to a second treatment step using a biological nitrogen removal system to produce a second treated sludge, wherein the second treatment step does not add organic matter. Thereafter, the second dissolved chemical oxygen demand of the second treated sludge is measured, and it is determined whether the second dissolved chemical oxygen demand is equal to the first dissolved chemical oxygen demand.
當前述之第二溶解態化學需氧量不等於第一溶解態化學需氧量時，重複進行調整製程。當第二溶解態化學需氧量等於第一溶解態化學需氧量時，固定回泵單元之回收量，並利用前述之有機污泥處理設備連續地處理有機污泥。 When the aforementioned second dissolved state chemical oxygen demand is not equal to the first dissolved state chemical oxygen demand, the adjustment process is repeated. When the second dissolved chemical oxygen demand is equal to the first dissolved chemical oxygen demand, the recovered amount of the pump unit is fixed, and the organic sludge is continuously treated by the organic sludge treatment device described above.
依據本發明之一實施例，前述之有機質可包含但不限於乙醇、甲醇、醋酸、乳酸、其他適當之有機材料或上述材料之任意混合。 According to an embodiment of the present invention, the aforementioned organic matter may include, but is not limited to, ethanol, methanol, acetic acid, lactic acid, other suitable organic materials, or any mixture of the above materials.
依據本發明之另一實施例，前述第一污泥小分子及第二污泥小分子之pH值為6至8。 According to another embodiment of the present invention, the first sludge small molecule and the second sludge small molecule have a pH of 6 to 8.
依據本發明之又一實施例，前述生物脫氮系統之停留時間為6小時至24小時。 According to still another embodiment of the present invention, the biological nitrogen removal system has a residence time of from 6 hours to 24 hours.
依據本發明之再一實施例，前述之第二溶解態化學需氧量等於第一溶解態化學需氧量時，回收量為70重量百分比。 According to still another embodiment of the present invention, when the second dissolved chemical oxygen demand is equal to the first dissolved chemical oxygen demand, the recovered amount is 70% by weight.
應用本發明有機污泥處理設備及其應用，已處理污泥之排出量可大幅降低，而降低對環境之衝擊，並減少有機污泥之處理成本。其次，所減少之污泥可回收至有機污泥供應槽中，作為後續脫硝單元之脫硝反應的誘發劑，進而不須額外添加有機質，因此可降低有機污泥處理設備之操作成本。 By using the organic sludge treatment equipment and the application thereof of the present invention, the discharge amount of the treated sludge can be greatly reduced, the impact on the environment is reduced, and the treatment cost of the organic sludge is reduced. Secondly, the reduced sludge can be recovered into the organic sludge supply tank as an inducer for the denitration reaction of the subsequent denitration unit, thereby eliminating the need for additional organic matter, thereby reducing the operating cost of the organic sludge treatment equipment.
100/100a‧‧‧設備 100/100a‧‧‧ equipment
110‧‧‧有機污泥供應槽 110‧‧‧Organic sludge supply tank
110a/120b/121c/123c/130a‧‧‧泵浦 110a/120b/121c/123c/130a‧‧‧ pump
120‧‧‧預處理系統 120‧‧‧Pretreatment system
120a‧‧‧預處理槽 120a‧‧‧Pretreatment tank
121‧‧‧水解單元 121‧‧‧hydrolysis unit
121a/123a‧‧‧控制單元 121a/123a‧‧‧Control unit
121b/123b‧‧‧儲槽 121b/123b‧‧‧ storage tank
123‧‧‧中和單元 123‧‧‧Neighboring unit
130‧‧‧生物脫氮系統 130‧‧‧ Biological Nitrogen Removal System
131‧‧‧脫硝單元 131‧‧‧Denitration unit
133‧‧‧生物膜反應器 133‧‧‧Biofilm Reactor
133a‧‧‧排泥管 133a‧‧‧Drain pipe
133b‧‧‧回泵單元 133b‧‧‧Back pump unit
140/140a/140b‧‧‧監控單元 140/140a/140b‧‧‧Monitoring unit
200‧‧‧方法 200‧‧‧ method
210‧‧‧提供有機污泥處理設備之步驟 210‧‧‧Steps for providing organic sludge treatment equipment
220‧‧‧預處理製程 220‧‧‧Pretreatment process
221‧‧‧設定回泵單元之回收量為0重量百分比之步驟 221‧‧‧Steps to set the recovery amount of the pump unit to 0% by weight
223‧‧‧進行第一轉換步驟之步驟 223‧‧‧Steps for the first conversion step
225‧‧‧進行第一處理步驟之步驟 225‧‧‧Steps for the first processing step
227‧‧‧量測第一已處理污泥之第一溶解態化學需氧量之步驟 227‧‧‧Measure the first dissolved COD of the first treated sludge
230‧‧‧調整製程 230‧‧‧Adjustment process
231‧‧‧進行調整步驟之步驟 231‧‧‧Steps for the adjustment steps
233‧‧‧進行第二轉換步驟之步驟 233‧‧‧Steps for the second conversion step
235‧‧‧進行第二處理步驟之步驟 235‧‧‧Steps for the second processing step
237‧‧‧量測第二已處理污泥之第二溶解態化學需氧量之步驟 237‧‧‧Measure the second dissolved COD of the second treated sludge
239‧‧‧判斷第二溶解態化學需氧量是否等於第一溶解態化學需氧量之步驟 239‧‧‧Steps for determining whether the second dissolved chemical oxygen demand is equal to the first dissolved chemical oxygen demand
240‧‧‧固定回收量，並利用有機污泥處理設備連續地處理有機污泥之步驟 240‧‧‧Steps for fixed recovery and continuous treatment of organic sludge using organic sludge treatment equipment
為了對本發明之實施例及其優點有更完整之理解，現請參照以下之說明並配合相應之圖式。必須強調的是，各種特徵並非依比例描繪且僅係為了圖解目的。相關圖式內容說明如下：〔圖1A〕係繪示依照本發明之一實施例之有機污泥處理設備之示意圖。 For a more complete understanding of the embodiments of the invention and the advantages thereof, reference should be made to the description below and the accompanying drawings. It must be emphasized that the various features are not drawn to scale and are for illustrative purposes only. The related drawings are described as follows: [Fig. 1A] is a schematic view showing an organic sludge processing apparatus according to an embodiment of the present invention.
〔圖1B〕係繪示依照本發明之另一實施例之有機污泥處理設備之示意圖。 FIG. 1B is a schematic view showing an organic sludge processing apparatus according to another embodiment of the present invention.
〔圖2A〕係繪示依照本發明之一實施例之有機污泥處理方法之流程圖。 2A is a flow chart showing an organic sludge treatment method according to an embodiment of the present invention.
〔圖2B〕係繪示接續於圖2A之預處理製程後之有機污泥處理方法之流程圖。 [Fig. 2B] is a flow chart showing the method of treating organic sludge after the pretreatment process of Fig. 2A.
以下仔細討論本發明實施例之製造和使用。然而，可以理解的是，實施例提供許多可應用的發明概念，其可實施於各式各樣的特定內容中。所討論之特定實施例僅供說明，並非用以限定本發明之範圍。 The making and using of the embodiments of the invention are discussed in detail below. However, it will be appreciated that the embodiments provide many applicable inventive concepts that can be implemented in a wide variety of specific content. The specific embodiments discussed are illustrative only and are not intended to limit the scope of the invention.
基於生物膜反應器所生成之已處理污泥的總重量(即排泥管所排出之部分與剩餘部分之總重量)為100重量百分比，本發明所稱之「回收量」係指於被生物脫氮系統中之生物膜反應器處理後，被回泵單元所回收之已處理污泥的剩餘部分之重量。因此，當回收量越大時，已處理污泥之剩餘部分的重量越重。 The total weight of the treated sludge generated by the biofilm reactor (ie, the total weight of the portion discharged from the drain pipe and the remaining portion) is 100% by weight, and the term "recycling amount" as used in the present invention refers to the biological The weight of the remainder of the treated sludge recovered by the pump unit after treatment by the biofilm reactor in the denitrification system. Therefore, the greater the amount of recovery, the heavier the weight of the remainder of the treated sludge.
請參照圖1A，其係繪示依照本發明之一實施例之有機污泥處理設備之示意圖。在一實施例中，有機污泥處理設備100包含有機污泥供應槽110、預處理系統120、生物脫氮系統130及複數個泵浦110a與130a，其中此些泵浦110a與130a係用以將所連接槽體及/或系統中之污泥輸送至進行後續製程之系統及/或槽體中。 Please refer to FIG. 1A, which is a schematic diagram of an organic sludge processing apparatus according to an embodiment of the present invention. In one embodiment, the organic sludge treatment plant 100 includes an organic sludge supply tank 110, a pretreatment system 120, a biological nitrogen removal system 130, and a plurality of pumps 110a and 130a, wherein the pumps 110a and 130a are used. The sludge in the connected tank and/or system is transferred to a system and/or tank for subsequent processing.
預處理系統120係連接有機污泥供應槽110，且生物脫氮系統130係連接預處理系統120。其中，有機污泥供應槽110中之有機污泥係藉由泵浦110a輸送至預處理系統120。 The pretreatment system 120 is coupled to the organic sludge supply tank 110, and the biological nitrogen removal system 130 is coupled to the pretreatment system 120. The organic sludge in the organic sludge supply tank 110 is sent to the pretreatment system 120 by the pump 110a.
預處理系統120可包含預處理槽120a、監控單元140及泵浦120b。監控單元140可監測預處理槽120a中有機污泥之狀況(例如：pH值及/或有機污泥之水解狀況)，並回傳相關之數據資料予操作人員。於自動化連續操作製程中，若監控單元140所回傳之數據資料滿足所設定之參數條件時，監控單元140可傳遞訊號予泵浦120b，以將經預處理槽120a處理後之有機污泥輸送至生物脫氮系統130。 The pretreatment system 120 can include a pretreatment tank 120a, a monitoring unit 140, and a pump 120b. The monitoring unit 140 can monitor the condition of the organic sludge in the pretreatment tank 120a (for example, the pH value and/or the hydrolysis state of the organic sludge), and return the relevant data to the operator. In the automated continuous operation process, if the data returned by the monitoring unit 140 satisfies the set parameter condition, the monitoring unit 140 can transmit a signal to the pump 120b to transport the organic sludge processed by the pretreatment tank 120a. To the biological nitrogen removal system 130.
前述之生物脫氮系統130可包含脫硝單元131、生物膜反應器133、排泥管133a及回泵單元133b。脫硝單元131連接預處理系統120，且生物膜反應器133連接脫硝單元131。其中，排泥管133a連接生物膜反應器133，且回泵單元133b連接生物膜反應器133。排泥管133a係用以將經生物膜反應器133處理後所產出之已處理污泥的一部分排出，且回泵單元133b係用以將已處理污泥之剩餘部分回收輸送至有機污泥供應槽110中。已處理污泥之剩餘部分係藉由泵浦130a輸送至有機污泥供應槽110中。 The aforementioned biological nitrogen removal system 130 may include a denitration unit 131, a biofilm reactor 133, a sludge discharge pipe 133a, and a return pump unit 133b. The denitration unit 131 is connected to the pretreatment system 120, and the biofilm reactor 133 is connected to the denitration unit 131. Among them, the sludge discharge pipe 133a is connected to the biofilm reactor 133, and the return pump unit 133b is connected to the biofilm reactor 133. The drain pipe 133a is for discharging a part of the treated sludge produced by the treatment by the biofilm reactor 133, and the pump unit 133b is for recycling and transporting the remaining portion of the treated sludge to the organic sludge. In the supply tank 110. The remainder of the treated sludge is delivered to the organic sludge supply tank 110 by the pump 130a.
前述之有機污泥供應槽110係用以收集並容置有機污泥。其中，有機污泥之來源沒有任何特別之限制，較佳可為利用有機生物處理設進行處理之有機污泥。 The aforementioned organic sludge supply tank 110 is for collecting and accommodating organic sludge. Among them, the source of the organic sludge is not particularly limited, and it is preferably an organic sludge which is treated by an organic biological treatment facility.
在一實施例中，前述之預處理系統120係用以將有機污泥轉換為污泥小分子，而可促進有機污泥之消化效率。據此，依據污泥之來源及其組成，前述之預處理系統120可為適當之物理處理系統或化學處理系統。其中，物理處理系統係利用物理機械力打破污泥之細胞壁，而破碎污泥細胞，並溶解部分細胞內物質。在一具體例中，預處理系統120可為研磨處理、震盪處理、超音波處理、熱處理、水解處理或氧化處理。 In one embodiment, the aforementioned pretreatment system 120 is used to convert organic sludge into sludge small molecules, which can promote the digestion efficiency of the organic sludge. Accordingly, the aforementioned pretreatment system 120 can be a suitable physical treatment system or chemical treatment system depending on the source of the sludge and its composition. Among them, the physical treatment system uses physical and mechanical force to break the cell wall of the sludge, breaks the sludge cells, and dissolves some of the intracellular substances. In one embodiment, the pretreatment system 120 can be a grinding process, an oscillating process, an ultrasonic process, a heat treatment, a hydrolysis process, or an oxidation process.
依據污泥之種類及組成，有機污泥於預處理系統120中之停留時間亦有所不同。當有機污泥轉換為污泥小分子時，污泥中之溶解態化學需氧量(Soluble Chemical Oxygen Demand；CODs)會上升。據此，有機污泥於預處理系統120中之停留時間可依據溶解態化學需氧量的上升幅度來判斷。換言之，當溶解態化學需氧量之上升幅度較佳係不大於10%時，操作人員即可判斷預處理系統120中之污泥小分子可輸送至生物脫氮系統130中。 The residence time of the organic sludge in the pretreatment system 120 varies depending on the type and composition of the sludge. When the organic sludge is converted into small sludge molecules, the dissolved chemical oxygen demand (Soluble Chemical Oxygen Demand; COD s ) will increase. Accordingly, the residence time of the organic sludge in the pretreatment system 120 can be judged based on the increase in the dissolved chemical oxygen demand. In other words, when the increase in the dissolved chemical oxygen demand is preferably not more than 10%, the operator can judge that the small sludge molecules in the pretreatment system 120 can be transported to the biological nitrogen removal system 130.
當前述之預處理系統120為水解處理時，為了使後續生物脫氮系統130中的微生物可存活，經水解處理後之污泥小分子較佳係進一步進行中和處理，以調整污泥小分子之pH值為6至8，且更佳為7。 When the pretreatment system 120 is hydrolyzed, in order to make the microorganisms in the subsequent biological denitrification system 130 viable, the small sludge molecules after the hydrolysis treatment are further subjected to neutralization treatment to adjust the sludge small molecules. The pH is 6 to 8, and more preferably 7.
請參照圖1B，其係繪示依照本發明之另一實施例之有機污泥處理設備之示意圖。有機污泥處理設備100a之架構與有機污泥處理設備100之架構大致上相同，兩者之差異在於有機污泥處理設備100a之預處理系統120係化學 處理系統。在一實施例中，此預處理系統120包含水解單元121、中和單元123、控制單元121a與123a、儲槽121b與123b、監控單元140a與140b及泵浦121c與123c。 Please refer to FIG. 1B , which is a schematic diagram of an organic sludge processing apparatus according to another embodiment of the present invention. The structure of the organic sludge treatment equipment 100a is substantially the same as that of the organic sludge treatment equipment 100, and the difference between the two is that the pretreatment system 120 of the organic sludge treatment equipment 100a is chemical. Processing system. In one embodiment, the pretreatment system 120 includes a hydrolysis unit 121, a neutralization unit 123, control units 121a and 123a, reservoirs 121b and 123b, monitoring units 140a and 140b, and pumps 121c and 123c.
水解單元121可為加鹼水解單元或加酸水解單元。依據水解單元121之種類，儲槽121b係儲存對應之鹼液或酸液。其次，為了調整污泥小分子之pH值，接續之中和單元123可為加酸中和單元或加鹼中和單元。相同地，依據中和單元123之種類，儲槽123b係儲存對應之酸液或鹼液。 The hydrolysis unit 121 may be an alkali hydrolysis unit or an acid hydrolysis unit. Depending on the type of hydrolysis unit 121, the reservoir 121b stores the corresponding lye or acid. Secondly, in order to adjust the pH value of the sludge small molecule, the subsequent neutralization unit 123 may be an acid addition unit or a base neutralization unit. Similarly, depending on the type of neutralization unit 123, the reservoir 123b stores the corresponding acid or lye.
在此實施例中，監控單元140a與140b分別係監測水解單元121與中和單元123中污泥小分子之pH值，並依據所獲得之pH值結果，傳送訊息予控制單元121a與123a，以分別可控制儲槽121b與123b之液體的添加，而進一步調整污泥小分子之pH值。 In this embodiment, the monitoring units 140a and 140b monitor the pH values of the sludge small molecules in the hydrolysis unit 121 and the neutralization unit 123, respectively, and transmit messages to the control units 121a and 123a according to the obtained pH value results. The addition of the liquid of the storage tanks 121b and 123b can be controlled separately to further adjust the pH value of the sludge small molecules.
當水解單元121及/或中和單元123中之污泥小分子的pH值未滿足所設定之參數條件時，監控單元140a與140b分別傳遞訊息予控制單元121a與123a，以添加儲存液體至水解單元121及/或中和單元123中。當儲槽121及/或123中之污泥小分子的pH值滿足所設定之參數條件時，監控單元140a與140b分別係傳遞訊息予泵浦121c與123c，以將水解單元121與中和單元123中之污泥小分子輸送至後續所連接之槽體(亦即中和單元123或生物脫氮系統130)中。 When the pH values of the sludge small molecules in the hydrolysis unit 121 and/or the neutralization unit 123 do not satisfy the set parameter conditions, the monitoring units 140a and 140b respectively transmit signals to the control units 121a and 123a to add the storage liquid to the hydrolysis. Unit 121 and/or neutralization unit 123. When the pH values of the sludge small molecules in the storage tanks 121 and/or 123 satisfy the set parameter conditions, the monitoring units 140a and 140b respectively transmit signals to the pumps 121c and 123c to transfer the hydrolysis unit 121 and the neutralization unit. The small sludge molecules in 123 are transported to a subsequently connected tank (i.e., neutralization unit 123 or biological nitrogen removal system 130).
請參照圖1A，當經預處理系統120處理後所產生之污泥小分子被輸送至生物脫氮系統130時，污泥小分子係先輸入至脫硝單元131中，以進行脫硝反應，而去除污泥 小分子中之氮氧化物。當進行脫硝反應後，污泥係被輸送至生物膜反應器133中，分解為已處理污泥。其中，已處理污泥之一部分係藉由生物膜反應器133所連接之排泥管133a排出，且已處理污泥之剩餘部分(亦即排出之已處理污泥以外之其他部分)係藉由回泵單元133b回收至有機污泥供應槽110。 Referring to FIG. 1A, when the small sludge molecules generated by the pretreatment system 120 are sent to the biological nitrogen removal system 130, the small sludge molecules are first input to the denitration unit 131 for denitration reaction. And removing sludge Nitrogen oxides in small molecules. After the denitration reaction, the sludge system is sent to the biofilm reactor 133 and decomposed into the treated sludge. Wherein, one part of the treated sludge is discharged through the sludge discharge pipe 133a connected to the biofilm reactor 133, and the remaining part of the treated sludge (that is, the portion other than the discharged treated sludge) is used by The return pump unit 133b recovers the organic sludge supply tank 110.
於有機污泥供應槽110中，所回收之已處理污泥的剩餘部分與未經處理之有機污泥混合後，其可藉由泵浦110a再次輸送至預處理系統120中，並轉換為污泥小分子(包含已處理污泥的剩餘部分)。然後，經由泵浦120b，污泥小分子可輸送至生物脫氮系統130中，而可進一步被分解。其中，當污泥小分子輸送至生物脫氮系統130時，污泥小分子中已處理污泥的剩餘部分可全部作為誘發脫硝單元131之脫硝反應的有機質，而使回收之剩餘部分不會額外增加生物脫氮系統130之負擔。 In the organic sludge supply tank 110, after the remaining portion of the recovered treated sludge is mixed with the untreated organic sludge, it can be again transported to the pretreatment system 120 by the pump 110a and converted into a fouling. Small mud molecules (including the remainder of the treated sludge). Then, via the pump 120b, the sludge small molecules can be delivered to the biological nitrogen removal system 130 and can be further decomposed. Wherein, when the small sludge molecules are transported to the biological nitrogen removal system 130, the remaining portion of the treated sludge in the small molecules of the sludge may all be used as the organic matter for inducing the denitration reaction of the denitration unit 131, so that the remaining portion of the recovery is not The burden on the biological nitrogen removal system 130 is additionally increased.
在一實施例中，前述之回泵單元133b可包含流量調整元件(未繪示)，且此流量調整元件可調整已處理污泥之剩餘部分的回收量。 In an embodiment, the aforementioned pumping unit 133b may include a flow regulating component (not shown), and the flow regulating component may adjust the amount of recovery of the remaining portion of the treated sludge.
在一應用例中，本發明之有機污泥處理設備可有效分解處理有機污泥，以避免直接排放所造成之環境衝擊。其次，藉由回泵單元回收已處理污泥之剩餘部分作為脫硝反應的誘發劑(有機碳源)，此有機污泥處理設備所排放之污泥量(即前述排泥管133a所排出之污泥的重量)可大幅減少。 In an application, the organic sludge treatment device of the present invention can effectively decompose and treat organic sludge to avoid environmental impact caused by direct discharge. Next, the remaining portion of the treated sludge is recovered by the return pump unit as an inducer (organic carbon source) for the denitration reaction, and the amount of sludge discharged from the organic sludge treatment device (ie, the discharged sludge pipe 133a) The weight of the sludge can be greatly reduced.
請同時參照圖1A、圖1B、圖2A及圖2B，圖2A係繪示依照本發明之一實施例之有機污泥處理方法之流程圖，且圖2B係繪示接續於圖2A之預處理製程後之有機污泥處理方法之流程圖。在一實施例中，方法200係先提供如前所述之有機污泥處理設備100，如步驟210所示。然後，利用此有機污泥處理設備100依序進行預處理製程220及調整製程230。 Referring to FIG. 1A, FIG. 1B, FIG. 2A and FIG. 2B, FIG. 2A is a flow chart of an organic sludge processing method according to an embodiment of the present invention, and FIG. 2B is a pre-processing according to FIG. 2A. Flow chart of the organic sludge treatment method after the process. In one embodiment, the method 200 first provides the organic sludge treatment apparatus 100 as previously described, as shown in step 210. Then, the organic sludge treatment apparatus 100 sequentially performs the pretreatment process 220 and the adjustment process 230.
預處理製程220係先設定有機污泥處理設備100中之回泵單元133b的回收量設定為0重量百分比(亦即不回收已處理污泥)，如步驟221所示。然後，利用預處理系統120對有機污泥進行第一轉換步驟，如步驟223所示，而生成第一污泥小分子。 The pretreatment process 220 first sets the recovery amount of the pump unit 133b in the organic sludge processing apparatus 100 to 0% by weight (that is, does not recover the treated sludge), as shown in step 221. Then, the organic sludge is subjected to a first conversion step by the pretreatment system 120, as shown in step 223, to generate a first sludge small molecule.
在一實施例中，若預處理系統120為化學處理系統(即水解中和處理系統)時，當第一污泥小分子之pH值為6至8(較佳為7)時，第一污泥小分子係藉由泵浦120b輸送至生物脫氮系統130中，以對污泥小分子進行第一處理步驟，如步驟225所示，而生成第一已處理污泥。 In an embodiment, if the pretreatment system 120 is a chemical treatment system (ie, a hydrolysis neutralization treatment system), when the pH of the first sludge small molecule is 6 to 8 (preferably 7), the first stain The small mud molecules are transported to the biological nitrogen removal system 130 by pump 120b to perform a first processing step on the sludge small molecules, as shown in step 225, to produce a first treated sludge.
在另一實施例中，若預處理系統120為物理處理系統時，隨著預處理系統120之停留時間增加，當第一污泥小分子中溶解態化學需氧量之上升幅度不大於10%時，第一污泥小分子即可輸送至生物脫氮系統130中，以進行第一處理步驟，如步驟225所示，而生成第一已處理污泥。 In another embodiment, if the pretreatment system 120 is a physical treatment system, as the residence time of the pretreatment system 120 increases, when the dissolved chemical oxygen demand in the first sludge small molecule increases by no more than 10% The first sludge small molecule can be delivered to the biological nitrogen removal system 130 for a first processing step, as shown in step 225, to produce a first treated sludge.
當進行第一處理步驟時，有機質係先添加至生物脫氮系統130之脫硝單元131中，以誘發脫硝反應。此有 機質可包含但不限於乙醇、、其他適當之有機材料或上述材料之任意混合。經脫硝反應後之污泥小分子係被輸送至生物膜反應器133中，即可生成第一已處理污泥。 When the first treatment step is performed, the organic matter is first added to the denitration unit 131 of the biological nitrogen removal system 130 to induce a denitration reaction. This has The medium may include, but is not limited to, ethanol, other suitable organic materials, or any mixture of the foregoing. The sludge small molecule after the denitration reaction is sent to the biofilm reactor 133 to form the first treated sludge.
在一具體例中，生物脫氮系統130之停留時間可為6小時至24小時。 In one embodiment, the residence time of the biological nitrogen removal system 130 can range from 6 hours to 24 hours.
進行步驟225後，量測第一已處理污泥之第一溶解態化學需氧量，如步驟227所示。 After performing step 225, the first dissolved chemical oxygen demand of the first treated sludge is measured, as shown in step 227.
請繼續參照圖1A、圖1B、圖2A及圖2B。進行預處理製程220後，進行調整製程230。調整製程230係先進行調整步驟，如步驟231所示。調整步驟係調整回泵單元133b之回收量，而可設定回收之已處理污泥的剩餘部分之重量，並將此剩餘部分之污泥輸送至有機污泥供應槽110中。其中，基於第一已處理污泥之總重量為100重量百分比，回收量可調整為大於0重量重分比且小於100重量百分比。 Please continue to refer to FIG. 1A, FIG. 1B, FIG. 2A and FIG. 2B. After the pre-treatment process 220 is performed, the adjustment process 230 is performed. The adjustment process 230 first performs an adjustment step, as shown in step 231. The adjustment step adjusts the recovery amount of the pump unit 133b, and the weight of the remaining portion of the recovered sludge can be set, and the remaining portion of the sludge is sent to the organic sludge supply tank 110. Wherein, the recovery amount may be adjusted to be greater than 0 weight by weight and less than 100 weight percent based on the total weight of the first treated sludge being 100 weight percent.
然後，利用預處理系統120對未處理過之有機污泥與回收之已處理污泥(亦即已處理污泥之剩餘部分)進行第二轉換步驟，如步驟233所示，而生成第二污泥小分子。相同於前述第一轉換步驟之第一污泥小分子，依據第二污泥小分子的pH值或溶解態化學需氧量之上升幅度，操作人員即可判斷是否進一步對第二污泥小分子進行第二處理步驟，或者繼續進行第二轉換步驟。 Then, the unprocessed organic sludge and the recovered treated sludge (that is, the remaining portion of the treated sludge) are subjected to a second conversion step by using the pretreatment system 120, as shown in step 233, to generate a second stain. Small clay molecules. The same as the first sludge small molecule of the first conversion step, according to the pH value of the second sludge small molecule or the increase of the dissolved chemical oxygen demand, the operator can judge whether the second sludge small molecule is further A second processing step is performed or the second conversion step is continued.
當第二污泥小分子的pH值為6至8，或者第二溶解態化學需氧量之上升幅度不大於10%時，第二污泥小分子 係被輸送至生物脫氮系統130中，以進行第二處理步驟，如步驟235所示，而形成第二已處理污泥。其中，第二處理步驟不添加前述之有機質來誘發脫硝單元131的脫硝反應。 When the pH of the second sludge small molecule is 6 to 8, or the increase of the second dissolved chemical oxygen demand is not more than 10%, the second sludge small molecule The system is sent to the biological nitrogen removal system 130 for a second processing step, as shown in step 235, to form a second treated sludge. Wherein, the second treatment step does not add the aforementioned organic matter to induce the denitration reaction of the denitration unit 131.
然後，量測第二已處理污泥之第二溶解態化學需氧量，並判斷所量得之第二溶解態化學需氧量是否等於第一溶解態化學需氧量，如步驟237及步驟239所示。 Then, measuring the second dissolved chemical oxygen demand of the second treated sludge, and determining whether the measured second dissolved chemical oxygen demand is equal to the first dissolved chemical oxygen demand, as in step 237 and the steps 239 is shown.
若第二溶解態化學需氧量不等於第一溶解態化學需氧量時，改變已處理污泥之回收量，並依序進行第二轉換步驟與第二處理步驟，而獲得改變回收量後所生成之第二已處理污泥。然後，量測此第二已處理污泥之第二溶解態化學需氧量，並再次判斷第二溶解態化學需氧量是否等於第一溶解態化學需氧量。若兩者仍不等於，重複進行調整製程230。 If the second dissolved chemical oxygen demand is not equal to the first dissolved chemical oxygen demand, the recovered amount of the treated sludge is changed, and the second conversion step and the second processing step are sequentially performed to obtain the changed recovery amount. The second treated sludge produced. Then, the second dissolved chemical oxygen demand of the second treated sludge is measured, and it is again determined whether the second dissolved chemical oxygen demand is equal to the first dissolved chemical oxygen demand. If the two are still not equal, the adjustment process 230 is repeated.
於前述之步驟239中，若第二溶解態化學需氧量等於第一溶解態化學需氧量時，固定所設定之回收量，並利用此有機污泥處理設備連續地處理有機污泥，如步驟240所示。 In the foregoing step 239, if the second dissolved chemical oxygen demand is equal to the first dissolved chemical oxygen demand, the set recovery amount is fixed, and the organic sludge is continuously treated by the organic sludge treatment device, such as Step 240 is shown.
需說明的是，前述調整製程230中各步驟之槽體(預處理系統120與生物脫氮系統130)的參數設定係相同於預處理製程中各步驟之槽體的參數設定。據此，除了有機污泥之構成不同外，預處理製程之第一轉換步驟與第一處理步驟之參數設定係相同於調整製程之第二轉換步驟與第二處理步驟的參數設定。 It should be noted that the parameter setting of the tank (the pretreatment system 120 and the biological nitrogen removal system 130) in each step of the adjustment process 230 is the same as the parameter setting of the tank in each step of the pretreatment process. Accordingly, in addition to the difference in the composition of the organic sludge, the parameter setting of the first conversion step and the first processing step of the pretreatment process is the same as the parameter setting of the second conversion step and the second processing step of the adjustment process.
在一應用例中，本案之有機污泥處理方法藉由回收已處理污泥之剩餘部分作為脫硝單元之脫硝反應的誘發劑，而不須額外添加有機質，且所回收之已處理污泥亦不會增加生物脫氮系統之負擔。因此，本案之有機污泥處理方法可減少有機污泥之排放量，且可連續地處理有機污泥，進而減少廢棄物之生成。 In an application example, the organic sludge treatment method of the present invention recovers the treated sludge by recovering the remaining portion of the treated sludge as an inducer of the denitration reaction of the denitration unit without additionally adding organic matter. It will not increase the burden of the biological nitrogen removal system. Therefore, the organic sludge treatment method of the present invention can reduce the discharge of organic sludge, and can continuously treat the organic sludge, thereby reducing the generation of waste.
以下利用實施例以說明本發明之應用，然其並非用以限定本發明，任何熟習此技藝者，在不脫離本發明之精神和範圍內，當可作各種之更動與潤飾。 The following examples are used to illustrate the application of the present invention, and are not intended to limit the present invention, and various modifications and refinements can be made without departing from the spirit and scope of the invention.
如前所述，預處理系統之停留時間係依據所生成之污泥小分子的pH值或其溶解態化學需氧量之上升幅度來判斷。為了明確說明，以下利用製備例說明預處理系統之停留時間的評量。 As mentioned above, the residence time of the pretreatment system is judged based on the increase in the pH of the generated sludge small molecule or its dissolved chemical oxygen demand. For clarity of illustration, the following is a description of the residence time of the pretreatment system using the preparation examples.
首先，混合一鋼鐵製程所產出之污泥，以及煉焦製程產出之廢水與生活廢水等比例混合之生化廢水，以獲得製備例所使用之有機污泥。其中，污泥濃度約為1%。 First, the sludge produced by a steel process and the biochemical wastewater mixed with the wastewater produced by the coking process and the domestic wastewater are mixed to obtain the organic sludge used in the preparation. Among them, the sludge concentration is about 1%.
然後，取部分之有機污泥，並添加濃度為40%之氫氧化鈉鹼液，以進行水解反應。其中，於添加氫氧化鈉鹼液後，有機污泥之pH值係調整為11。進行0分鐘後，添加硫酸，以中和有機污泥(調整pH值為7)。接著，量測水解中和後之有機污泥的溶解態化學需氧量。 Then, a part of the organic sludge was taken, and a sodium hydroxide lye having a concentration of 40% was added to carry out a hydrolysis reaction. Among them, after adding sodium hydroxide lye, the pH of the organic sludge was adjusted to 11. After 0 minutes, sulfuric acid was added to neutralize the organic sludge (pH 7 was adjusted). Next, the dissolved chemical oxygen demand of the organic sludge after the hydrolysis is neutralized is measured.
之後，取數個另一部分之前述的有機污泥，並以相同之反應條件進行水解反應及中和反應，惟其水解反應之進行時間分別改變為30分鐘、60分鐘、90分鐘、120分鐘、150分鐘、180分鐘、210分鐘或240分鐘。於進行中和反應後，分別量測各個有機污泥之溶解態化學需氧量，並以水解時間為0分鐘所量得之溶解態化學需氧量為基礎，計算不同水解時間之有機污泥的溶解態化學需氧量之增加率。 Thereafter, a plurality of other portions of the aforementioned organic sludge are taken, and the hydrolysis reaction and the neutralization reaction are carried out under the same reaction conditions, except that the progress time of the hydrolysis reaction is changed to 30 minutes, 60 minutes, 90 minutes, 120 minutes, 150, respectively. Minutes, 180 minutes, 210 minutes, or 240 minutes. After the neutralization reaction, the dissolved chemical oxygen demand of each organic sludge was measured, and the organic sludge with different hydrolysis time was calculated based on the dissolved chemical oxygen demand obtained by the hydrolysis time of 0 minutes. The rate of increase in dissolved chemical oxygen demand.
依據所獲得之結果可知，隨著水解時間增加，有機污泥之溶解態化學需氧量係隨之增加。其中，各組污泥之水解時間與所得溶解態化學需氧量之增加率如下表所示：
如上表所示，雖然水解時間越長，有機污泥破碎為污泥小分子之效率越佳，惟考量操作成本及溶解態化學需氧量之增加幅度，水解反應之時間較佳為120分鐘。其中，每公克污泥有機質之水解效率為0.028公克溶解態化學需氧量(即0.028 gCODs/gVSS)。 As shown in the above table, although the longer the hydrolysis time, the more efficient the organic sludge is broken into sludge small molecules, the time of the hydrolysis reaction is preferably 120 minutes, considering the increase in the operating cost and the dissolved chemical oxygen demand. Among them, the hydrolysis efficiency per gram of sludge organic matter is 0.028 g dissolved chemical oxygen demand (ie 0.028 gCOD s / gVSS).
實施例之有機污泥包含鋼鐵製程所產出之污泥，以及煉焦製程產出之廢水與生活廢水等比例混合之生化廢水。其中，污泥濃度約為1%。前述之有機污泥係先輸送至有機污泥供應槽中。 The organic sludge of the embodiment comprises the sludge produced by the steel process, and the biochemical wastewater mixed with the wastewater produced by the coking process and the domestic wastewater. Among them, the sludge concentration is about 1%. The aforementioned organic sludge is first transported to the organic sludge supply tank.
然後，以批次泵送之方式，將有機污泥輸送至預處理系統中。其中，實施例之預處理系統係化學處理系統，且其包含水解單元及中和單元。於水解單元中，水解反應係使用濃度為40%之氫氧化鈉鹼液調整有機污泥之pH值，且水解反應之時間為120分鐘。於中和單元中，中和反應係使用硫酸，將水解後之污泥小分子的pH值調整為7。 The organic sludge is then delivered to the pretreatment system by batch pumping. Among them, the pretreatment system of the embodiment is a chemical treatment system, and it comprises a hydrolysis unit and a neutralization unit. In the hydrolysis unit, the hydrolysis reaction was carried out using a sodium hydroxide lye having a concentration of 40% to adjust the pH of the organic sludge, and the hydrolysis reaction time was 120 minutes. In the neutralization unit, the neutralization reaction system uses sulfuric acid to adjust the pH of the hydrolyzed sludge small molecule to 7.
接著，將污泥小分子輸送至生物脫氮系統中，以生成已處理污泥。之後，基於每批次所生成之已處理污泥的總重量為100重量百分比，將30重量百分比之已處理污泥以排泥管排出處理設備，且70重量百分比之已處理污泥藉由回泵單元輸送至有機污泥供應槽中，並持續處理有機污泥。 Next, the sludge small molecules are transported to the biological nitrogen removal system to produce treated sludge. Thereafter, based on 100% by weight of the total weight of the treated sludge produced in each batch, 30% by weight of the treated sludge is discharged into the treatment equipment as a sludge discharge pipe, and 70% by weight of the treated sludge is returned by The pump unit is transported to the organic sludge supply tank and continuously processes the organic sludge.
連續運作有機污泥處理設備4個月，並記錄由脫硝單元所排出之污泥的平均水質數據。所得之平均水質數據如第1表所示。 The organic sludge treatment equipment was continuously operated for 4 months, and the average water quality data of the sludge discharged from the denitration unit was recorded. The average water quality data obtained is shown in Table 1.
比較例係使用與實施例之有機污泥處理方法大致相同之流程步驟及設備，不同之處在於比較例之已處理污泥係全部排出，且比較例之生物脫氮系統的回泵單元之回收量為0重量百分比。比較例所測得之平均水質數據如第1表所示。 The comparative example uses the same process steps and equipment as the organic sludge treatment method of the embodiment, except that the treated sludge system of the comparative example is completely discharged, and the recovery unit of the bio-denitrogenation system of the comparative example is recovered. The amount is 0% by weight. The average water quality data measured in the comparative example is shown in Table 1.
請參照第1表，依據鹼度及硝酸鹽氮(NOx-N)之評價結果可知，由於脫硝反應會增加污泥之鹼度，且可有效去除污泥中之氮氧化物，故實施例之脫硝反應的效能係優於比較例之脫硝反應。因此，依據實施例及比較例之製程差異可知，實施例所回收之已處理污泥可有效誘發脫硝反應，進而可增進脫硝反應之效能。 Please refer to the first table. According to the evaluation results of alkalinity and nitrate nitrogen (NO x -N), it is known that the denitration reaction increases the alkalinity of the sludge and effectively removes the nitrogen oxides in the sludge. The performance of the denitration reaction is superior to the denitration reaction of the comparative example. Therefore, according to the difference in the process of the examples and the comparative examples, the treated sludge recovered in the examples can effectively induce the denitration reaction, thereby improving the efficiency of the denitration reaction.
據此，本案回收之已處理污泥可作為脫硝反應之誘發劑，而進一步提升脫硝反應之效能。 Accordingly, the treated sludge recovered in the present case can be used as an inducer of the denitration reaction, thereby further improving the efficiency of the denitration reaction.
其中，雖然本案所回收之已處理污泥會增加總化學需氧量(Total COD；CODt)及懸浮固體濃度，惟懸浮固體可藉由脫硝單元後續之生物膜反應器進一步去除。故， 依據前述之說明可知，實施例與比較例之水質不具明顯之差異。 Among them, although the treated sludge recovered in this case will increase the total chemical oxygen demand (Total COD; COD t ) and the suspended solids concentration, the suspended solids can be further removed by the subsequent biofilm reactor of the denitration unit. Therefore, according to the foregoing description, the water quality of the examples and comparative examples is not significantly different.
因此，本案所回收之已處理污泥可作為脫硝反應之誘發劑，而促進脫硝反應之效能，且有機污泥處理設備所排出之污泥量亦可大幅減少。 Therefore, the treated sludge recovered in the present case can be used as an inducer of the denitration reaction, and the efficiency of the denitration reaction is promoted, and the amount of sludge discharged from the organic sludge treatment equipment can be greatly reduced.
此外，依據比較例(即回收量為0重量百分比)之脫硝單元或生物膜反應器所處理之硝酸鹽氮的濃度為100%，所回收之已處理污泥中的硝酸鹽氮於脫硝單元或生物膜反應器中之濃度分別僅為3.8%及3.7%。故，所回收之已處理污泥不會額外增加脫硝單元及生物膜反應器的負擔。 In addition, according to the comparative example (ie, the recovery amount is 0% by weight) of the denitration unit or the biofilm reactor, the concentration of the nitrate nitrogen is 100%, and the nitrate nitrogen in the recovered sludge is denitrated. The concentrations in the unit or biofilm reactor were only 3.8% and 3.7%, respectively. Therefore, the recovered sludge recovered does not add to the burden of the denitration unit and the biofilm reactor.
據此，利用本發明之有機污泥處理設備及其應用，藉由回泵單元已處理污泥之剩餘部分輸送回有機污泥供應槽中，有機污泥處理設備所排出之污泥量亦可大幅降低。其次，所回收之已處理污泥亦可有效誘發後續脫硝單元之脫硝反應，而增進脫硝反應之效能，進而不須額外添加作為誘發劑之有機質。 According to the present invention, the organic sludge treatment device and the application thereof of the present invention can be transported back to the organic sludge supply tank by the remaining portion of the sludge treated by the pump unit, and the amount of sludge discharged from the organic sludge treatment equipment can also be significantly reduce. Secondly, the recovered sludge can also effectively induce the denitration reaction of the subsequent denitration unit, thereby improving the efficiency of the denitration reaction, and thus eliminating the need to additionally add an organic substance as an inducer.
雖然本發明已以實施方式揭露如上，然其並非用以限定本發明，在本發明所屬技術領域中任何具有通常知識者，在不脫離本發明之精神和範圍內，當可作各種之更動與潤飾，因此本發明之保護範圍當視後附之申請專利範圍所界定者為準。 The present invention has been disclosed in the above embodiments, and is not intended to limit the present invention. Any one of ordinary skill in the art to which the present invention pertains can make various changes without departing from the spirit and scope of the invention. The scope of protection of the present invention is therefore defined by the scope of the appended claims.
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