CN205099542U - Pharmacy effluent disposal system - Google Patents
Pharmacy effluent disposal system Download PDFInfo
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- CN205099542U CN205099542U CN201520745758.8U CN201520745758U CN205099542U CN 205099542 U CN205099542 U CN 205099542U CN 201520745758 U CN201520745758 U CN 201520745758U CN 205099542 U CN205099542 U CN 205099542U
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Abstract
The utility model relates to a waste water treatment technology field specifically discloses a pharmacy effluent disposal system. Pharmacy effluent disposal system includes preprocessing device, settlement treatment device, fenton reaction device, adjusts and deposits the device, nitrifies and denitrification biochemical treatment device, adsorption tower device, preprocessing device, flocculating settling device, fenton reaction device, adjust deposit the device, nitrify and denitrification biochemical treatment device, adsorption tower device loop through the intercommunication. The utility model discloses with coagulating sedimentation, fenton reaction, denitrogenation and adsorb to handle and mutually combine, realize getting rid of the organic matter that is difficult to biodegradable in the pharmacy waste water, in fenton reaction, can also get rid of noxious material simultaneously, finally realize getting rid of of COD, ammonia nitrogen, total nitrogen for the pharmacy wastewater discharge who handles through this system reaches GB18918 -2002 one -level A standard.
Description
Technical field
The utility model relates to pharmacy wastewater treatment technical field, particularly relates to a kind of pharmacy wastewater treatment system.
Background technology
Pharmaceutical industry garden waste water has following features: (1) waste water is had by oneself after sewage work's process through enterprise in garden, although COD (English full name: ChemicalOxygenDemand, Chinese name: chemical oxygen demand (COD)) be down to about 500mg/L, but due to BOD (English full name: BiochemicalOxygenDemand, Chinese name: biochemical oxygen demand (BOD)) in treating processes, almost depleted, cause the ratio of BOD and COD lower, even lower than 0.1; (2) complicated component, wastewater toxicity is high, organism and aromatics and heterogeneous ring compound in the majority, ammonia nitrogen, total nitrogen concentration are high; (3) colourity is high, and smell is large, has very adverse influence to surrounding environment.
In the process of existing trade effluent, usually adopt biochemical processing process, namely carry out biochemical reaction by microorganism and biodegradable pollutent in water inlet, thus by pollutant removal.But, biochemical processing process can only pack processing containing the trade effluent of biodegradable component, and the waste water of pharmaceutical industry garden, BOD/COD odds ratio is lower, and conventional wastewater processing technology can not meet the process of pharmaceutical industry waste water.Therefore, build and a set ofly can the Waste Water Treatment of effective treatment of pharmacy trade effluent divide important.
Utility model content
The utility model embodiment provides a kind of pharmacy wastewater treatment system, object be to solve exist in existing biochemical treatment system be difficult to the lower useless water problem of treatments B OD/COD ratio, to realize being difficult to the organic removal of biological degradation in pharmacy waste water.
For reaching above-mentioned utility model object, the technical scheme that the utility model embodiment adopts is as follows:
A kind of pharmacy wastewater treatment system, comprises pretreatment unit, sedimentation processing device, Fenton's reaction device, regulates settler, nitrated and denitrification biochemical treatment apparatus, adsorption tower device;
Described pretreatment unit, flocculation thickener, Fenton's reaction device, settler, nitrated and denitrification biochemical treatment apparatus, adsorption tower device is regulated to be communicated with successively.
As preferably, comprise fine fack and equalizing tank, described equalizing tank is provided with water inlet, water outlet and phegma entrance, and described fine fack is be arranged at described equalizing tank water inlet end face for tackling the screen cloth of pharmacy waste water suspended substance.
As preferably, described sedimentation processing device comprises the coagulation basin, flocculation basin and the first settling tank that are communicated with successively; Described coagulation basin is communicated with described pretreatment unit, and described first settling tank is communicated with described Fenton's reaction device.
As preferably, described Fenton's reaction device is Fenton's reaction tower.
As preferably, described adjustment settler is the second settling tank.
As preferably, described nitrated and denitrification biochemical treatment apparatus comprise be communicated with successively nitrated filter tank, denitrification filter pool; Described nitrification tank is communicated with described second settling tank; Described denitrification filter pool is communicated with described adsorption tower.
As preferably, described adsorption tower device is ADSORPTION IN A FIXED BED tower.
As preferably, described first settling tank is also communicated with sludge thickener respectively with described second settling tank.
As preferably, described sludge thickener is also communicated with the phegma entrance of described equalizing tank and plate-and-frame filter press respectively.
As preferably, the water outlet of described plate-and-frame filter press is communicated with the phegma entrance of described equalizing tank.
Coagulating sedimentation, Fenton's reaction, denitrogenation and adsorption treatment combine by the pharmacy wastewater treatment system of above-described embodiment, realize the removal to refractory organic in pharmacy waste water, make to reach GB18918-2002 one-level A standard by the pharmacy waste water discharge of this system process.
Accompanying drawing explanation
The pharmacy wastewater treatment system schematic that Fig. 1 the utility model provides.
Embodiment
Clearly understand that in order to make the purpose of this utility model, technical scheme and advantage following examples are further elaborated to the utility model.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
As shown in Figure 1, the utility model embodiment provides a kind of pharmacy wastewater treatment system, and this pharmacy wastewater treatment system comprises pretreatment unit, sedimentation processing device, Fenton's reaction device, regulates settler, nitrated and denitrification biochemical treatment apparatus, adsorption tower device.
Wherein, in any embodiment, pretreatment unit, sedimentation processing device, Fenton's reaction device, settler, nitrated and denitrification biochemical treatment apparatus, adsorption tower device is regulated to be communicated with successively.In one embodiment, described pretreatment unit, sedimentation processing device, Fenton's reaction device, regulate settler, nitrated and denitrification biochemical treatment apparatus, adsorption tower device to be communicated with successively by pipeline.
In any embodiment, pretreatment unit comprises fine fack and equalizing tank, is provided with water inlet, water outlet and phegma entrance in equalizing tank, and fine fack is arranged at equalizing tank water inlet end face.Described fine fack, for tackling in pharmacy waste water contained suspended substance, is avoided pharmacy waste water suspended substance to enter in equalizing tank in pharmacy wastewater treatment system and other devices, thus is avoided suspended substance damage other devices or affect water treatment effect.
In any embodiment, in pretreatment unit, the water outlet of equalizing tank is communicated with sedimentation processing device through but not limited to by means of only pipeline.In one embodiment, can also by being opened on equalizing tank upper end, this opening and sedimentation processing device upper end are connected, and realize waste water and flow into sedimentation processing device from pretreatment unit.
In any embodiment, sedimentation processing device comprises the coagulation basin, flocculation basin and the first settling tank that are communicated with successively, and coagulation basin, flocculation basin and the first settling tank are provided with water inlet and water outlet respectively, and in addition, the first settling tank is also provided with mud suction mouth.Particularly, the water outlet of coagulation basin can realize being communicated with through but not limited to by means of only pipeline with the water inlet of the first settling tank with the water inlet of flocculation basin, the water outlet of flocculation basin.In any embodiment, pretreatment unit is be communicated with the water inlet of coagulation basin by the water outlet of equalizing tank with being communicated with of sedimentation processing device.
In any embodiment, Fenton's reaction device is provided with water inlet and water outlet, and described sedimentation processing device is also communicated with Fenton's reaction device.Particularly, be that the water outlet of the first settling tank of sedimentation processing device is communicated with through but not limited to by means of only the water inlet of pipeline with Fenton's reaction device.Described Fenton's reaction device is Fenton's reaction tower.
In any embodiment, described adjustment precipitin reaction device is the second settling tank.Second settling tank is provided with water inlet, water outlet and mud suction mouth.The water inlet of described second settling tank is communicated with through but not limited to by means of only the water outlet of pipeline with Fenton's reaction device.
In any embodiment, the water outlet of the second settling tank is communicated with nitrated and denitrification biochemical treatment apparatus through but not limited to by means of only pipeline.In any embodiment, described nitrated and denitrification biochemical treatment apparatus comprises successively through but not limited to by means of only the nitrated filter tank of pipeline communication, denitrification filter pool.
In any embodiment, described denitrification filter pool is communicated with adsorption tower device through but not limited to by means of only pipeline.In one embodiment, described adsorption tower device is ADSORPTION IN A FIXED BED tower.
In order to better process the throw outs such as the mud of the first settling tank and the discharge of the second settling tank, reduce secondary pollution, the mud suction mouth mouth of described first settling tank and the mud suction mouth of the second settling tank respectively by but be not limited to be communicated with the entrance of sludge thickener by means of only pipeline.
Meanwhile, in order to can be good at processing and collect the mud of being discharged by sludge thickener, described sludge thickener is also communicated with plate-and-frame filter press, thus realizes the mud produced in pharmacy wastewater treatment system to carry out briquetting process.
In sludge thickener and plate-and-frame filter press lignin-sludge process, partially liq is still had to discharge, in order to the part pollutent that the liquid reducing discharge may also exist, above-mentioned sludge thickener and plate-and-frame filter press also respectively by but be not limited to be communicated with the phegma entrance of equalizing tank by means of only pipeline, realize effluent cycle process.
The pharmacy wastewater treatment system that the utility model above-described embodiment provides, achieves that BOD/COD ratio is lower, containing the environmental protection treatment being difficult to biological degradation organism and the more pharmacy waste water of toxic substance, water outlet reaches GB18918-2002 one-level A standard.
The operational process of the utility model embodiment is: pharmacy waste water enters pretreatment unit, is tackled by the suspended substance in pharmacy waste water by the fine fack of pretreatment unit, does not then enter coagulation basin containing the pharmacy waste water of suspended substance from equalizing tank; Now, drop into polymerize aluminum chloride (PAC), carry out coagulating treatment to coagulation basin, the waste water after coagulating treatment flows in flocculation basin; Now, drop into polyacrylamide (PAM) to flocculation basin, carry out flocculation treatment, removing colloidalmaterial, and remove portion COD, ammonia nitrogen, total nitrogen, colourity etc.; Waste water through flocculation treatment flows into the first settling tank, and the first settling tank discharges supernatant liquor from overflow weir, discharges a large amount of mud from the mud suction mouth of the first settling tank; The supernatant liquor of discharging flows through Fenton's reaction tower, now in Fenton's reaction tower, adds sulfuric acid, ferrous sulfate and hydrogen peroxide (35%wtH
2o
2), carry out oxidizing reaction by Fenton's reaction tower.Through the wastewater streams of Fenton's reaction tower oxidizing reaction process through the second settling tank, now in the second settling tank, drop into sodium hydroxide, adjust ph to 8 ~ 9 precipitation further, the mud that precipitation produces is discharged by the mud suction mouth of the second settling tank.From the waste water that the second settling tank flows out, enter nitrated filter tank, controlling nitrated filter tank filtering velocity is 6m/h ~ 8m/h, realizes, in nitrated filter tank, the ammonium oxidation in waste water is become nitrated state nitrogen.Through nitrated waste water, flow into denitrification filter pool and carry out Air Exposure, now drop into carbon source to denitrification filter pool, and to control denitrification filter pool filtering velocity be 8m/h ~ 10m/h, realizing in denitrification filter pool is free of contamination nitrogen by nitrate-nitrogen reduction, realizes the removal of ammonia nitrogen and total nitrogen.From the water that denitrification filter pool flows out, enter adsorption tower device, carry out advanced treatment by adsorption tower device to reluctant COD, the water of discharge can reach GB18918-2002 one-level A standard.And from the mud that the first settling tank and the second settling tank are discharged, enter the further concentration of sludge thickener, through the mud of concentration, carry out pressure treatment by plate-and-frame filter press and become mud cake, and the supernatant liquor that sludge thickener and plate-and-frame filter press are discharged, be then back to equalizing tank and again process.
In above-mentioned pharmacy wastewater treatment system operation, in order to better carry out nitration treatment to waste water, the Air Exposure equipment in nitrated filter tank is communicated with a blower fan by pipeline, supplies air-flow by blower fan, guarantees that aeration is abundant.
In above-mentioned pharmacy wastewater treatment system works engineering, being the better COD process to being difficult to degrade, granular active carbon being placed in the ADSORPTION IN A FIXED BED tower in adsorption tower device as sorbent material, realizing the advanced treatment of waste water.More preferably, the filtering velocity of adsorption tower device is controlled at 8m/h ~ 12m/h.
For better understanding the pharmacy wastewater treatment system that the utility model provides, the utility model embodiment, also by example, illustrates the utility model and operational process thereof so that better.
(1) pharmacy waste water pre-treatment.The waste water that pharmacy is discharged enters pretreatment unit, and the suspended substance in pharmacy waste water is tackled by the fine fack in pretreatment unit, then preliminary sedimentation regulating pondage etc. in equalizing tank.
(2) settlement treatment.Sedimentation processing device is flowed into through pretreated waste water.In coagulation basin, drop into the PAC of 300mg/L, in flocculation basin, drop into the PAM of 5mg/L, through the waste water that the first settling tank is discharged, carry out the detection of COD, ammonia nitrogen, total nitrogen, detect that the average removal efficiency of COD, ammonia nitrogen, total nitrogen is respectively 32.4%, 23.6%, 34.2%.
(3) Fenton's reaction tower oxidizing reaction.Dropping into concentration to the waste water flowed in Fenton's reaction tower is the hydrogen peroxide of 600 ~ 800mg/L, and according to ferrous sulfate: hydrogen peroxide=1.8:1 (mass ratio) drops into ferrous sulfate, and the reaction times is 45min.Carry out the detection of COD to water outlet after Fenton's reaction tower, detect that COD average removal rate is 69.1%, during water outlet, COD concentration is at about 100mg/L.
(4) secondary sedimentation process.The waste water of being discharged by Fenton's reaction tower, enters the second settling tank and carries out further precipitation process, now in the second settling tank, drops into appropriate sodium hydroxide according to waste water ph in the second settling tank, until pH value is 8.0.
(5) nitrated and denitrification biochemical treatment.The waste water that second settling tank is discharged, flow through nitrated and denitrification biochemical treatment apparatus, controlling nitrated filter tank filtering velocity is 8m/h, and Air Exposure in nitrated filter tank, then drops into carbon source in denitrification filter pool, and controlling denitrification filter pool filtering velocity is 10m/h.After nitrated and denitrification biochemical treatment, detect that the COD of water outlet is at about 100mg/L, ammonia nitrogen <5mg/L, total nitrogen <15mg/L.
(6) adsorption treatment.The waste water of being discharged by nitrated and denitrification biochemical treatment apparatus; enter fixed-bed type adsorption tower; fixed-bed type adsorption tower adopts granulated active carbon to be seated in fixing adsorption unit as sorbent material, and controlling the residence time of waste water in fixed-bed type adsorption tower is 0.5h.
(7) sludge dewatering treatment.The mud that first settling tank and the second settling tank are discharged is by Cemented filling to sludge thickener, and mud concentrates further in sludge thickener, and the supernatant liquid of generation enters equalizing tank through piping, circular treatment; And concentrated mud, enter plate-and-frame filter press by pipeline and be dehydrated into mud cake, collect to facilitate or do further process, the water that sludge dewatering produces, enter equalizing tank by pipeline, carry out circular treatment.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection domain of the present utility model.
Claims (11)
1. a pharmacy wastewater treatment system, is characterized in that: comprise pretreatment unit, sedimentation processing device, Fenton's reaction device, regulate settler, nitrated and denitrification biochemical treatment apparatus, adsorption tower device;
Described pretreatment unit, flocculation thickener, Fenton's reaction device, settler, nitrated and denitrification biochemical treatment apparatus, adsorption tower device is regulated to be communicated with successively.
2. pharmacy wastewater treatment system as claimed in claim 1, it is characterized in that: described pretreatment unit comprises fine fack and equalizing tank, described equalizing tank is provided with water inlet, water outlet and phegma entrance, and described fine fack is be arranged at described equalizing tank water inlet end face for tackling the screen cloth of pharmacy waste water suspended substance.
3. the pharmacy wastewater treatment system as described in as arbitrary in claim 1 ~ 2, is characterized in that: described sedimentation processing device comprises the coagulation basin of connection, flocculation basin and the first settling tank; Described coagulation basin is communicated with described pretreatment unit, and described first settling tank is communicated with described Fenton's reaction device.
4. the pharmacy wastewater treatment system as described in as arbitrary in claim 1 ~ 2, is characterized in that: described Fenton's reaction device is Fenton's reaction tower.
5. the pharmacy wastewater treatment system as described in as arbitrary in claim 1 ~ 2, is characterized in that: described adjustment settler is the second settling tank.
6. pharmacy wastewater treatment system as claimed in claim 5, is characterized in that: described nitrated and denitrification biochemical treatment apparatus comprise be communicated with successively nitrated filter tank, denitrification filter pool; Described nitrification tank is communicated with described second settling tank; Described denitrification filter pool is communicated with described adsorption tower.
7. the pharmacy wastewater treatment system as described in as arbitrary in claim 1 ~ 2, is characterized in that: described adsorption tower device is ADSORPTION IN A FIXED BED tower.
8. pharmacy wastewater treatment system as claimed in claim 3, is characterized in that: described first settling tank is communicated with sludge thickener.
9. pharmacy wastewater treatment system as claimed in claim 5, is characterized in that: described second precipitation is communicated with sludge thickener.
10. the pharmacy wastewater treatment system as described in as arbitrary in claim 8 ~ 9, is characterized in that: described sludge thickener is also communicated with the phegma entrance of described equalizing tank and plate-and-frame filter press respectively.
11. pharmacy wastewater treatment systems as claimed in claim 10, is characterized in that: the water outlet of described plate-and-frame filter press is communicated with the phegma entrance of described equalizing tank.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520745758.8U CN205099542U (en) | 2015-09-24 | 2015-09-24 | Pharmacy effluent disposal system |
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| CN201520745758.8U CN205099542U (en) | 2015-09-24 | 2015-09-24 | Pharmacy effluent disposal system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109368915A (en) * | 2018-11-01 | 2019-02-22 | 江南大学 | A kind of processing method of Polyester wastewater |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109368915A (en) * | 2018-11-01 | 2019-02-22 | 江南大学 | A kind of processing method of Polyester wastewater |
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