JP2608496B2 - Solid-liquid separation method using filter media - Google Patents
Solid-liquid separation method using filter mediaInfo
- Publication number
- JP2608496B2 JP2608496B2 JP29813991A JP29813991A JP2608496B2 JP 2608496 B2 JP2608496 B2 JP 2608496B2 JP 29813991 A JP29813991 A JP 29813991A JP 29813991 A JP29813991 A JP 29813991A JP 2608496 B2 JP2608496 B2 JP 2608496B2
- Authority
- JP
- Japan
- Prior art keywords
- filter medium
- turning
- filtration
- stirring
- filter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Landscapes
- Treatment Of Sludge (AREA)
- Biological Treatment Of Waste Water (AREA)
Description
【0001】[0001]
【産業上の利用分野】本発明は、例えば畜舎、農産・畜
産物等の加工処理施設、下水処理場、し尿処理場、飼・
肥料工場、レンダリングプラント、フィッシュミール工
場等での汚水の浄化処理施設への流入路途中、もしくは
処理水の排水路途中に付設し、汚水もしくは処理水中の
固形物を取り除くようにした濾材による固液分離方法に
関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a processing facility for livestock houses, agricultural and livestock products, a sewage treatment plant, a human waste treatment plant,
A solid-liquid filter medium that is installed in the middle of the inflow path to the sewage purification treatment facility at the fertilizer factory, rendering plant, fishmeal factory, etc., or in the middle of the drainage path of treated water to remove solids in the wastewater or treated water. It relates to a separation method.
【0002】[0002]
【従来の技術】上記のような汚水を固液分離する方法と
して、沈澱分離、浮上分離、遠心分離、濾過、乾燥など
による分離等が一般に知られている。このうち、濾過の
方法には重力を利用する方法、圧力・遠心力による方法
などがあり、重力濾過法の一部を除いて薬剤を併用する
例が多い。本発明は、重力濾過法に関するものであるが
濾過材(濾材)としては従来から砂、おが屑などが用い
られ、それらを30〜100cm堆積した濾過槽上に汚
水を流し込んで堆積表面付近で汚水中の固形物を捕捉
し、固形物は天日乾燥後人力で取り除いて濾過能力の回
復を図っている。2. Description of the Related Art As a method for solid-liquid separation of wastewater as described above, precipitation separation, flotation separation, centrifugal separation, filtration, drying and the like are generally known. Among these methods, there are a method of utilizing gravity, a method of using pressure and centrifugal force, and the like. In many cases, a drug is used in combination except for a part of gravity filtration. The present invention relates to a gravity filtration method. However, sand, sawdust and the like are conventionally used as a filter material (filter material), and sewage is poured into a filtration tank in which 30 to 100 cm is deposited, and sewage is discharged in the vicinity of the deposition surface. The solid matter is captured, and the solid matter is removed manually after drying in the sun to restore the filtration ability.
【0003】[0003]
【発明が解決しようとする課題】従って、濾過能力の復
元は天日乾燥期間、すなわち季節・地域によってその乾
燥能力は異なる(冬期は夏期に比べて約1/3〜1/5
程度になる)とともに、他の乾燥法に比較して極端にそ
の乾燥能力(冬期での濾床1平方メートル・1日当りの
水分蒸発能力は1.5〜2.0kg程度である)が低
く、濾過槽施設規模が大きくなる問題点がある。また、
濾過槽表面で濾過されない微小粒径の固形物や濾過槽内
で繁殖する微生物などによって濾過槽内の空隙が閉塞し
て濾過能力が徐々に低下し、最終的には濾過槽内の濾材
を全て入れ替えなければならないという問題点がある。
このように従来の砂、おが屑等の濾材を用いた重力濾過
法では、濾材表面や内部に濾過により保持された固形物
の目詰まりのために、濾過効率が低下して処理施設の縮
小化に限界を生じている。そこで本発明は、濾材表面や
内部に濾過により保持された固形物を濾材とともに好気
的発酵処理して固形物などの分解・除去を図り、処理効
率の向上、処理時間の短縮、処理施設の縮小を可能とし
た新たな固液分離方法を提供することを目的とする。Therefore, the restoration of the filtration capacity differs depending on the solar drying period, that is, the drying capacity varies depending on the season and region (in winter, about 1/3 to 1/5 of that in summer).
) And its drying ability is extremely low compared to other drying methods (water-evaporating capacity per square meter of filter bed in winter is about 1.5 to 2.0 kg per day). There is a problem that the tank facility scale becomes large. Also,
The pores in the filter tank are blocked by solids of a small particle size that are not filtered on the surface of the filter tank and microorganisms that grow in the filter tank, and the filtering capacity gradually decreases. There is a problem that it has to be replaced.
As described above, in the conventional gravity filtration method using a filter medium such as sand and sawdust, the filtration efficiency is reduced due to the clogging of the solid material retained by filtration on the surface and inside of the filter medium, thereby reducing the size of the treatment facility. There are limits. Therefore, the present invention aims to decompose and remove solids and the like by performing aerobic fermentation treatment of the solids retained on the surface and inside of the filter medium by filtration together with the filter medium, thereby improving the processing efficiency, shortening the processing time, and improving the processing facilities. It is an object of the present invention to provide a new solid-liquid separation method that enables reduction.
【0004】[0004]
【課題を解決するための手段】上記の目的を達成するた
めに、本発明は、 .通水性、通気性に優れたほぼ均一な有機質資材を濾
過用の濾材として用い、その濾材を堆積した濾過槽の上
部に固形物を含んだ家畜糞尿を散布し、濾材部で汚水を
濾過することにより汚水に含まれる大半の固形物を堆積
濾材の上部で保持し、濾過液は濾過槽下部の網層より下
方に排出し、固形物を保持した濾過槽上部の濾材部を、
濾過槽の上部に配設され、濾過槽の上方を前後左右に移
動可能な台車と、この台車に上下移動可能に取付けられ
た攪拌・切返し部とからなる攪拌・切返し装置の攪拌・
切返し部により網層近傍まで攪拌・切り返し、また網層
下部より強制通気して濾材部に保持された目詰まりの原
因となる固形物を好気性発酵させ、その大部分を分解・
除去して、濾材部の 網層近い傍までの攪拌・切り返し
と合わせて濾過能力を維持するようにしたこと、 .濾過槽での攪拌・切返し装置の攪拌・切返し部によ
る攪拌・切返し深さ及び位置をに変えて、目詰り層が生
じやすい攪拌・切返し部の攪拌軸下部先端と未攪拌濾材
部との間の層を網層近傍まで破砕・攪拌し、固形物の好
気的発酵処理による分解を促進させて濾過能力の低下を
防止し、濾過能力を維持するようにしたこと、をそれぞ
れ特徴とするものである。In order to achieve the above object, the present invention provides: Using a substantially uniform organic material with excellent water permeability and air permeability as a filter medium for filtration, spraying livestock manure containing solid matter on the upper part of the filter tank where the filter medium is deposited, and filtering wastewater at the filter medium part By holding most of the solid matter contained in the wastewater at the top of the sedimentary filter medium, the filtrate is discharged below the mesh layer at the bottom of the filter tank, and the filter medium part at the top of the filter tank holding the solid matter,
Is disposed above the filtration tank, a carriage movable back and forth and left and right above the filtration tank, stirred and the stirring and turning-back device consisting of a stirring and turning-back portion attached to be vertically moved in this truck
Network layer stirred and crosscut to the vicinity of the turning-back portion, also with forced aeration from the lower network layer is aerobic fermentation solids that cause clogging held in the filter medium unit, - decomposing the majority
Remove and stir / turn back to near the mesh layer of the filter media
That the filtration capacity is maintained in conjunction with Instead of the stirring and turning-back depth and position by Ru <br/> the stirring and turning-back portion of the stirring and turning-back device in the filtration tank, stirring shaft lower tip and unstirred of clogging layer is prone stirring and turning-back portion The layer between the filter medium portion is crushed and stirred to the vicinity of the mesh layer, to promote the decomposition of solids by aerobic fermentation treatment, to prevent a decrease in filtration capacity, and to maintain the filtration capacity. Each is characterized.
【0005】[0005]
【作用】上記の手段によって本発明の濾材による固液分
離方法では、濾過能力の低下の原因となる濾過槽内の濾
材の一部で目詰りした固形物を好気的発酵処理によって
分解し、濾過能力の低下を防止し、濾過能力の維持が図
られる。また、順次下層へ移動する目詰まり部分を撹拌
・切返し装置の作用深さを変えながら撹拌・切返して、
再度濾過能力の低下を防止し、濾過能力の維持が図られ
る。In the solid-liquid separation method using the filter medium of the present invention by the above-mentioned means, the solid matter clogged in a part of the filter medium in the filter tank, which causes a decrease in filtration capacity, is decomposed by aerobic fermentation treatment. A decrease in filtration capacity is prevented, and the filtration capacity is maintained. In addition, the clogging part that moves sequentially to the lower layer is stirred and turned while changing the working depth of the stirring and turning device,
Again, a decrease in the filtration capacity is prevented, and the filtration capacity is maintained.
【0006】[0006]
【実施例】以下、本発明の一実施例を添付の図面を参照
して具体的に説明する。図1に示す固液分離装置(濾過
槽)は、本発明の固液分離方法を実施するためのもの
で、他の構成のものであってもよいものである。図1に
おいて、符号1は濾材、2は撹拌・切返し装置、3は汚
水散布管、4は通気用送風機、5は撹拌軸、6は撹拌軸
上下動装置、7は寒冷紗、8はステンレス網、9は架
台、10は濾液配水管、11は濾液受槽である。撹拌・
切返し装置2は、その支持フレーム2aが左右方向移動
車輪12,12により架台9の上縁部9aに対して左右
移動可能に、また、支持フレーム2aに対して前後方向
移動車輪13,13により前後移動可能に支持されてい
る。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be specifically described below with reference to the accompanying drawings. The solid-liquid separation device (filtration tank) shown in FIG. 1 is for implementing the solid-liquid separation method of the present invention, and may have another configuration. In FIG. 1, reference numeral 1 denotes a filter medium, 2 denotes a stirring / turning device, 3 denotes a sewage spray pipe, 4 denotes a ventilation blower, 5 denotes a stirring shaft, 6 denotes a stirring shaft vertical moving device, 7 denotes a cold gauze, 8 denotes a stainless steel mesh, 9 is a stand, 10 is a filtrate water distribution pipe, and 11 is a filtrate receiving tank. Stirring
The turning-over device 2 is configured such that the support frame 2a can move left and right with respect to the upper edge 9a of the gantry 9 by means of left and right moving wheels 12 and 12 and can be moved back and forth by means of front and rear moving wheels 13 and 13 with respect to the support frame 2a. It is movably supported.
【0007】上記濾材1は、家畜糞等の好気的発酵処理
時に用いられる水分調整用の副資材(おが屑、籾殻、ゼ
オライト、パーライトなど)などの通水性、通気性に優
れた資材を用い、これら濾材1を、架台9上に載置され
た濾過槽の底部に、通気用送風機4からの通風間隙を開
けて張設された寒冷紗7及びステンレス網8上に堆積
し、その上方から汚水散布管3により汚水を散布して濾
過処理する。即ち、固形物を堆積濾材1表面または堆積
濾材1内部に保持して、固形物含量の少ない濾液を、寒
冷紗7及びステンレス網8から下方間隙に排出し、濾液
配水管10を介して濾液受槽11に貯溜するのである。The filter medium 1 is made of a material having excellent water permeability and air permeability, such as auxiliary materials for water adjustment (sawdust, rice hull, zeolite, perlite, etc.) used in aerobic fermentation treatment of livestock dung and the like. These filter media 1 are deposited on a cooling gauze 7 and a stainless steel net 8 which are stretched at the bottom of a filtration tank placed on a gantry 9 with a ventilation gap from the ventilation blower 4 opened, and sprinkled with sewage from above. The sewage is sprayed through the pipe 3 and filtered. That is, the solid matter is held on the surface of the sedimentary filter medium 1 or inside the sedimentary filter medium 1, and the filtrate having a low solid matter content is discharged from the cold gauze 7 and the stainless steel net 8 into the lower gap, and the filtrate receiving tank 11 is passed through the filtrate water distribution pipe 10. It is stored in.
【0008】しかし、この処理を継続すると、保持され
た固形物が濾材1と濾材1との空間部を塞ぎ目詰りの原
因となり、濾過能力の低下が生じる。そこで、付設の攪
拌・切返し装置2を、左右方向移動車輪12,12及び
前後方向移動車輪13,13により前後,左右に移動さ
せながら、攪拌軸5で目詰り部分を攪拌・切返し、いわ
ゆる堆肥化(好気的発酵処理)の場合と同様な操作によ
り、その部分の濾材1の空隙率を高めると共に、堆積濾
材1最下部の寒冷紗7及びステンレス網8の下方間隙よ
り通気用送風機4により強制通気し、濾材1に酸素(空
気)を供給して好気的発酵を促進する。この操作により
目詰りの原因となった固形物中の易分解性物質が分解し
て発熱し、材料中の水分の蒸発が行われ、かつ固形物の
分解による乾物(固形物)減少により、目詰り現象が取
り除かれて濾過能力の回復が図られることになる。[0008] However, if this treatment is continued, the retained solids block the space between the filter media 1 and cause clogging, resulting in a decrease in filtration capacity. Accordingly, the stirring and turning-back device 2 attached, the front-rear by the horizontal drive wheels 12, 12 and longitudinal movement wheels 13 and 13, while moving of <br/> to the left and right, stirred and clogging portion in the stirring shaft 5 By turning back, so-called composting (aerobic fermentation treatment), the porosity of the filter medium 1 in that part is increased, and air is passed through the lower gap of the cold gauze 7 and the stainless steel mesh 8 at the bottom of the piled filter medium 1. Aeration is forced by a blower 4 to supply oxygen (air) to the filter medium 1 to promote aerobic fermentation. As a result of this operation, the easily decomposable substance in the solid material that caused the clogging is decomposed and generates heat, the water in the material is evaporated, and the dry matter (solid matter) is reduced due to the decomposition of the solid matter. The clogging phenomenon is removed, and the filtration ability is restored.
【0009】さらに、現状の攪拌深さを維持した状態で
濾過能力がさらに低下する場合は、攪拌・切返し装置2
の攪拌軸5による攪拌・切返し深さを、攪拌軸上下動装
置6を伸長させることによって深くし、左右方向移動車
輪12,12及び前後方向移動車輪13,13による前
後,左右の移動と共に目詰まりしている部分を攪拌軸5
により攪拌・切返してその原因の解消を図るようにす
る。なお、これに用いる濾材1の寸法は、極端に微細な
ものでは目詰りし易く、また極端に大きいものでは濾過
できないため、およそ0.1mm(おが屑の最小寸法)
〜5.0mm(籾殼の最大寸法)程度のものとし、その
濾材1の堆積高さは実用上からみて0.5〜5.0m程
度とし、極力その濾材1を圧密して堆積し、濾材1と濾
材1との空間部を小さくして汚水中の微細な固形物をも
濾過できるようにしている。よって、濾材1等を用いた
濾過槽において、一定容量の濾材1で処理可能な汚水量
の増大化が可能となると共に、処理効率の向上、処理時
間の短縮、処理施設の縮小化などが可能となる。Further, when the filtration capacity is further reduced while maintaining the current stirring depth, the stirring / turning device 2 is used.
The depth of stirring / turning by the stirring shaft 5 is increased by extending the stirring shaft vertical movement device 6, and clogging is caused by the movement of the left and right moving wheels 12, 12 and the front and rear moving wheels 13, 13 in the forward and backward and left and right directions. Stir shaft 5
To eliminate the cause. The dimensions of the filter medium 1 used for this purpose are about 0.1 mm (minimum dimension of sawdust) because extremely fine ones are easily clogged and extremely large ones cannot be filtered.
最大 5.0 mm (maximum size of rice husk), and the deposition height of the filter medium 1 is about 0.5 to 5.0 m as viewed from a practical point of view. The space between the filter material 1 and the filter medium 1 is reduced so that fine solids in the sewage can be filtered. Therefore, in a filtration tank using the filter medium 1 or the like, it is possible to increase the amount of sewage that can be treated with a fixed volume of the filter medium 1, and to improve the processing efficiency, shorten the processing time, and reduce the size of the processing facility. Becomes
【0010】次に、上記固液分離装置(濾過槽)を用い
た固液分離の操作を説明する。まず豚舎などの畜舎から
排出された汚水を、毎日処理すべき汚水量だけポンプな
どで汚水散水管3から、架台9上の濾過槽下部のステン
レス網8及び寒冷紗7上に堆積した濾材1上面に均一に
散布する。散布された汚水中の固形物のほとんどは濾材
1上層部で濾過・保持され、固形物含量が少なくなった
濾液は濾過槽下部のステンレス網8及び寒冷紗7から排
出されて濾液配水管10を通って濾液受槽11に貯留さ
れ、固液分離される。なお、濾液は別途浄化処理装置な
どで浄化処理されて放流される。Next, the operation of solid-liquid separation using the above-mentioned solid-liquid separation device (filtration tank) will be described. First, sewage discharged from a livestock barn such as a pig house is pumped by the sewage water sprinkling pipe 3 by the amount of sewage to be treated every day from the sewage sprinkling pipe 3 onto the stainless steel net 8 under the filtration tank on the gantry 9 and the upper surface of the filter medium 1 deposited on the cold gauze 7 Spray evenly. Most of the solid matter in the sprinkled sewage is filtered and retained in the upper layer of the filter medium 1, and the filtrate having a reduced solid matter content is discharged from the stainless steel net 8 and the cold gauze 7 at the lower part of the filtration tank and passes through the filtrate distribution pipe 10. Then, it is stored in the filtrate receiving tank 11 and separated into solid and liquid. The filtrate is separately purified by a purification device or the like and discharged.
【0011】濾材1上槽部に保持された固形物は、左右
方向移動車輪12,12及び前後方向移動車輪13,1
3による前後,左右の移動と共に攪拌・切返し装置2の
動作により、その攪拌軸5によって濾材1と攪拌・混合
され、好気的発酵処理される。なお、現状の撹拌深さを
維持した状態で濾過能力がさらに低下する場合は、攪拌
軸上下動装置6により攪拌軸5の攪拌深さを深くして、
その目詰り部分を攪拌・混合して好気的発酵処理し、濾
過能力の低下を防止し、濾過能力を維持させる。堆積濾
材1の最下部層まで攪拌軸5で攪拌・混合する段階まで
至っても、その濾過能力が低下する場合には、濾過槽内
の材料の全量を新たな濾材1と入替え、新たに濾過操作
を行う。なお、濾過槽から取り出した材料は、別途堆肥
化施設などでその副資材(濾材1)が腐熱分解に必要と
する期間堆積し、好気的発酵させて処理する。The solid matter held in the upper tank of the filter medium 1 is divided into left and right moving wheels 12 and 12 and front and rear moving wheels 13 and 1.
By the operation of the agitating / turning device 2 together with the back and forth and left and right movements by 3, the agitating shaft 5 agitates and mixes with the filter medium 1 and performs aerobic fermentation treatment. Incidentally, if the filtering capacity is further lowered in a state of maintaining the agitation depth of current, and deep stirring depth of the stirring shaft 5 by the stirring axis vertical movement device 6,
The clogged portion is aerobic fermented by stirring and mixing to prevent a decrease in filtration capacity and maintain the filtration capacity. If the filtration ability is reduced even at the stage of stirring and mixing with the stirring shaft 5 to the lowermost layer of the deposited filter medium 1, the entire amount of the material in the filtration tank is replaced with a new filter medium 1, and a new filtering operation is performed. I do. In addition, the material taken out from the filtration tank is separately deposited in a composting facility or the like for a period necessary for the pyrolysis of the auxiliary material (filter medium 1), and is processed by aerobic fermentation.
【0012】また、濾材1中への好気性微生物の繁殖・
活動に必要な酸素の供給は、通常、自然の空気の流入に
より行うものとして濾過槽下部にその流入口を設け、流
入空気の自然上昇により行っているが、その供給酸素量
が不足するおそれがある場合には、通気用送風機4で強
制的に濾材1中へ通気する。なお、この濾床の濾材1と
しておが屑を用い、豚舎尿汚水をおが屑濾床基礎試験装
置(濾材堆積高さ:45cm、堆積床面積:0.126
平方メートル)に毎日濾床床面積1平方メートル当り1
00kg相当量(12.7kg)供試して濾過試験を継
続して行った結果を表1、表2に示したが、豚舎尿汚水
中の汚濁物質であるSS(固形物)の80%以上が継続
して除去可能であった。しかし、約2カ月後にはおが屑
槽上部での目詰まりにより濾過不能となり、その部分の
撹拌・混合操作によりその濾過能力の回復がみられた。In addition, propagation of aerobic microorganisms in the filter medium 1
The supply of oxygen necessary for activities is usually performed by the inflow of natural air, and the inlet is provided at the lower part of the filter tank, and it is performed by the natural rise of the inflow air, but the amount of supplied oxygen may be insufficient. In some cases, air is forced into the filter medium 1 by the ventilation blower 4. Sawdust was used as the filter medium 1 of this filter bed, and the pork house urine sewage was subjected to a sawdust filter bed basic test apparatus (filter material pile height: 45 cm, pile floor area: 0.126
1 m2 per day)
Table 1 and Table 2 show the results of continuous filtration tests with a sample equivalent to 00 kg (12.7 kg). 80% or more of SS (solid matter), which is a pollutant in swine waste urine, is shown. It could be removed continuously. However, after about two months, the filtration became impossible due to clogging at the upper part of the sawdust tank, and the filtering ability was recovered by the stirring and mixing operations in that part.
【0013】[0013]
【発明の効果】以上説明したように、本発明の濾材によ
る固液分離方法によれば、下記のような効果を奏するこ
とができる。 .好気的発酵処理などで用いる副資材(ほぼ均一な有
機質資材)を濾材として用い、汚水中の固形物を濾材表
面もしくは内部に濾過により保持させると共に、攪拌・
切返し装置の攪拌・切返し部により濾材を網層近傍まで
攪拌・切り返し、好気的発酵処理の場合と同様に副資材
としての働きを行なわせ、目詰まりの原因となる固形物
を好気的発酵により分解・除去させて濾過能力の低下を
防止し、濾過能力を長期間保持することが可能となる。 .また、濾過槽での攪拌・切返し装置の攪拌・切返し
部によって攪拌・切返し深さを段階的に深く、あるいは
上下及び前後左右に目詰り層が生じやすい攪拌・切返し
部の攪拌軸下部先端と末攪拌濾材部との間の層を網層近
傍まで破砕・攪拌し、濾過槽に目詰り層が形成されない
ようにし、固形物の好気的発酵による分解を促進させて
濾過能力の低下を防止し、濾過能力を維持することがで
きる。 .それ故、固液分離処理効率が高められ、処理時間の
短縮が可能となり、濾材の交換期間の延長ができると共
に、濾過槽規模の縮小が可能となり、施設費、運転費の
低減を図ることができる。As described above, according to the solid-liquid separation method using the filter medium of the present invention, the following effects can be obtained. . Auxiliary material (almost uniform organic material) used in aerobic fermentation treatment etc. is used as a filter material, and solid matter in sewage is retained on the surface or inside of the filter material by filtration, while stirring.
The agitating / turning part of the turning device agitates / turns the filter medium to the vicinity of the mesh layer, and acts as an auxiliary material in the same way as in the aerobic fermentation treatment, and aerobic fermentation of solids that cause clogging. By this, it is possible to prevent degradation of the filtration ability by decomposing and removing, and to maintain the filtration ability for a long time . . The stirring-turning-back of the stirring and turning-back device in the filtration tank
Stirring / turning depth is gradually increased depending on the part , or stirring / turning is likely to cause clogging layers in the vertical and horizontal directions.
The layer between the lower end of the agitating shaft and the agitated filter medium is crushed and stirred to the vicinity of the mesh layer to prevent the formation of a clogging layer in the filtration tank and to promote the decomposition of solids by aerobic fermentation. Thus, it is possible to prevent a decrease in filtration capacity and maintain the filtration capacity. . Therefore, the solid-liquid separation processing efficiency can be enhanced, the processing time can be shortened, the replacement period of the filter medium can be extended, and the size of the filtration tank can be reduced, so that facility costs and operation costs can be reduced. it can.
【図1】本発明に使用される固液分離装置(濾過槽)の
一例の概略図である。FIG. 1 is a schematic view of an example of a solid-liquid separation device (filtration tank) used in the present invention.
1 濾材 2 撹拌・切返し装置 2a 支持フレーム 3 汚水散布管 4 通気用送風機 5 撹拌軸 6 撹拌軸上下動装置 7 寒冷紗 8 ステンレス網 9 架台 9a 架台の上縁部 10 濾液排水管 11 濾液受槽 12 左右方向移動車輪 13 前後方向移動車輪 DESCRIPTION OF SYMBOLS 1 Filter medium 2 Stirring / turning-back apparatus 2a Support frame 3 Waste water spray pipe 4 Ventilation blower 5 Stirrer shaft 6 Stirrer shaft vertical movement device 7 Cold gauze 8 Stainless steel net 9 Mount 9a Upper edge of mount 10 Filtrate drain pipe 11 Filtrate receiving tank 12 Left and right direction Moving wheel 13 Front and rear moving wheel
───────────────────────────────────────────────────── フロントページの続き (72)発明者 福森 功 埼玉県大宮市日進町1丁目40番地2 生 物系特定産業技術研究推進機構内 (72)発明者 古山 隆司 埼玉県大宮市日進町1丁目40番地2 生 物系特定産業技術研究推進機構内 (56)参考文献 特開 平4−250893(JP,A) 実開 昭50−41352(JP,U) ────────────────────────────────────────────────── ─── Continuing from the front page (72) Inventor Isao Fukumori 1-40-2 Nisshincho, Omiya-shi, Saitama Prefecture Within the Biotechnology-Specific Industrial Technology Research Promotion Organization (72) Inventor Takashi Furuyama 1-chome Nisshincho, Omiya-shi, Saitama No. 40 No. 2 Within the Research Institute for Specified Industrial Technology for Biological Sciences (56) References JP-A-4-250893 (JP, A) JP-A-50-41352 (JP, U)
Claims (2)
質資材を濾過用の濾材として用い、その濾材を堆積した
濾過槽の上部に固形物を含んだ家畜糞尿を散布し、濾材
部で汚水を濾過することにより汚水に含まれる大半の固
形物を堆積濾材の上部で保持し、濾過液は濾過槽下部の
網層より下方に排出し、固形物を保持した濾過槽上部の
濾材部を、濾過槽の上部に配設され、濾過槽の上方を前
後左右に移動可能な台車と、この台車に上下移動可能に
取付けられた攪拌・切返し部とからなる攪拌・切返し装
置の攪拌・切返し部により網層近傍まで攪拌・切り返
し、また網層下部より強制通気して濾材部に保持された
目詰まりの原因となる固形物を好気性発酵させ、その大
部分を分解・除去して、濾材部の網層近傍までの攪拌・
切り返しと合わせて濾過能力を維持するようにしたこと
を特徴とする濾材による固液分離方法。1. A substantially uniform organic material having excellent water permeability and air permeability is used as a filter medium for filtration, and livestock manure containing solid matter is sprayed on an upper part of a filter tank on which the filter medium is deposited. By filtering the sewage, most of the solid matter contained in the sewage is retained at the upper part of the sedimentary filter medium, the filtrate is discharged below the mesh layer at the bottom of the filter tank, and the filter medium part at the upper part of the filter tank holding the solid matter is removed. is disposed above the filtration tank, a carriage movable back and forth and left and right above the filtration tank, stirred and the stirring and turning-back device consisting of a stirring and turning-back portion attached to be vertically moved in this bogie turning-back parts to stirring and crosscut more to network layer near and the solid was forced aeration from the lower network layer causes clogging held in the filter medium unit is aerobic fermentation, by decomposing and removing the most part, Stir up to near the mesh layer of the filter media
A solid-liquid separation method using a filter medium, characterized in that the filtration ability is maintained in combination with the turning back .
返し部による攪拌・切返し深さ及び位置を変えて、目詰
り層が生じやすい攪拌・切返し部の攪拌軸下部先端と末
攪拌濾材部との間の層を網層近傍まで破砕・攪拌し、固
形物の好気的発酵処理による分解を促進させて濾過能力
の低下を防止し、濾過能力を維持するようにしたことを
特徴とする請求項1記載の濾材による固液分離方法。2. Stirring / turning off of a stirring / turning-over device in a filtration tank.
Change the depth and position of the agitation / turning by the return part, and crush and stir the layer between the lower end of the agitating shaft of the agitation / turning part where the clogging layer is likely to occur and the end agitation filter medium to the vicinity of the mesh layer. 2. The solid-liquid separation method using a filter medium according to claim 1, wherein decomposition of the product by aerobic fermentation treatment is promoted to prevent a decrease in filtration capacity, and to maintain the filtration capacity.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP29813991A JP2608496B2 (en) | 1991-10-17 | 1991-10-17 | Solid-liquid separation method using filter media |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP29813991A JP2608496B2 (en) | 1991-10-17 | 1991-10-17 | Solid-liquid separation method using filter media |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH05103911A JPH05103911A (en) | 1993-04-27 |
JP2608496B2 true JP2608496B2 (en) | 1997-05-07 |
Family
ID=17855697
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP29813991A Expired - Lifetime JP2608496B2 (en) | 1991-10-17 | 1991-10-17 | Solid-liquid separation method using filter media |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2608496B2 (en) |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5041352U (en) * | 1973-08-13 | 1975-04-26 | ||
JPH07121397B2 (en) * | 1990-11-17 | 1995-12-25 | デコンタインテグレ株式会社 | Bioreactor for sludge and solid organic waste treatment |
-
1991
- 1991-10-17 JP JP29813991A patent/JP2608496B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
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JPH05103911A (en) | 1993-04-27 |
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