CN104355448A - Treatment method for gelatin production wastewater - Google Patents
Treatment method for gelatin production wastewater Download PDFInfo
- Publication number
- CN104355448A CN104355448A CN201410621843.3A CN201410621843A CN104355448A CN 104355448 A CN104355448 A CN 104355448A CN 201410621843 A CN201410621843 A CN 201410621843A CN 104355448 A CN104355448 A CN 104355448A
- Authority
- CN
- China
- Prior art keywords
- treatment process
- waste water
- wastewater
- gelatine
- flocculation
- 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.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
- C02F11/122—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering using filter presses
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/32—Hydrocarbons, e.g. oil
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/34—Organic compounds containing oxygen
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/38—Organic compounds containing nitrogen
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/32—Nature of the water, waste water, sewage or sludge to be treated from the food or foodstuff industry, e.g. brewery waste waters
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention belongs to the technical field of food wastewater treatment and particularly relates to a treatment method for gelatin production wastewater. The treatment method for gelatin production wastewater comprises the following steps: 1) respectively carrying out primary solid-liquid separation on various wastewater generated in the production process by using a grid; 2) introducing various wastewater after primary solid-liquid separation to a flocculation basin to mix so as to obtain mixed wastewater, wherein the pH value is 6.5-9; and 3) adding a flocculant into the mixed wastewater for flocculation and sedimentation for 2-4 hours, wherein the precipitate in the lower layer is sludge while the liquid in the upper layer is discharged with standard level. The treatment method for gelatin production wastewater provided by the invention has the advantages of being economical, fast and simple in step.
Description
Technical field
The invention belongs to food wastewater processing technology field, particularly a kind for the treatment of process of gelatine wastewater.
Background technology
Gelatine wastewater mainly comprises pickling waste water, liming waste water, washing waste water and neutralized wastewater, its complicated component, and containing a large amount of lysotype albumen, amino acid, carbohydrate, grease, scurf etc., change of water quality is large; Contaminated wastewater characteristic is high calcium, high-alkali, high protein, and difficulty of governance is larger.
Traditional treatment process all needs sedimentation substantially, biochemical, air-flotation process, as: author is volume the 1st phase in " Chinese leather " January the 40th in 2011 of 4 people such as Yan Dongfeng, record in " application of coagulation-A/O-air-float technology in skin gelatin wastewater treatment ": in alkaline medium, gelatine wastewater is difficult to natural subsidence clarification, therefore first must destroy the stability of colloid and make it cohesion, suspended substance and the protein such as most of leather chip is removed in the coagulating sedimentation stage, reduce COD, SS, then biochemical process process is imposed, A/O technique have employed combined anaerobic aerobic reactor, the anaerobic zone residence time 1 ~ 2h, waste water is after the biochemical section of A/O removes most COD and ammonia nitrogen, qualified discharge is obtained again through air-flotation process.Use the step of air supporting, sedimentation, biochemical treatment in method therefor, process time is long, and breed bacteria is many, and protein degradation is ammonia nitriding compound, and finally need biochemical treatment could remove ammonia nitrogen and bacterium, cost is high and step complicated.
Summary of the invention
In order to overcome the deficiencies in the prior art, the invention provides a kind of economy, fast, the treatment process of the simple gelatine wastewater of step.
To achieve these goals, the present invention is by the following technical solutions:
A treatment process for gelatine wastewater, comprises the following steps:
1) the various waste water produced in gelatine production course are carried out preliminary solid-liquid separation respectively by grid;
2) the various waste water through preliminary solid-liquid separation are passed into flocculation basin to mix, obtaining pH value is 6.5 ~ 9 composite wastes;
3) in composite waste, add flocculation agent flocculation sediment 2 ~ 4h, lower sediment is mud, supernatant liquid qualified discharge.
As preferably, described flocculation agent be polymerize aluminum chloride (PAC), bodied ferric sulfate (PFS), polyacrylamide (PAM) one or more.
As preferably, the chemical feeding quantity of described flocculation agent is 0.2 ~ 0.6mg/l.
More preferred, the chemical feeding quantity of described flocculation agent is 0.5 ~ 0.6mg/l
As preferably, described pH value is 7 ~ 8.
As preferably, described mud is proceeded to sludge thickener and concentrates, obtain thickened sludge.
More preferred, described simmer down to gravity concentration or centrifugal concentrating.
Or more preferred, by described thickened sludge by filter press, the mud outward transport discharge after press filtration, the waste water after press filtration enters flocculation basin circular treatment.
Advantageous Effects of the present invention:
1, instant invention overcomes the prejudice of prior art, namely do not need to build air flotation pool, anaerobic pond, contact-oxidation pool, preliminary sedimentation tank etc., and only need build flocculation sedimentation tank, whole materializing strategy all completes this pond is disposable, saving a large amount of funds, be both economical technical scheme, and step is simple.
First various waste water is carried out preliminary solid-liquid separation through grid by the present invention, therefore can not establish preliminary sedimentation tank; Adopt flocculent precipitation in wastewater treatment process, when pH value is 6.5 ~ 9, flocculation sediment effect is better, and the waste water after flocculation can reach emission standard, and the time being mixed into water outlet from intaking is short, only needs just most COD to be removed qualified discharge in 2 ~ 4 hours; And traditional gelatine wastewater treatment process time from inlet water to outlet water about needs 30 hours just can reach identical effect.Because the ammonia nitrogen in gelatine wastewater is amino in protein degradation process being transformed, when the present invention does not have sufficient, chien shih waste water produces ammonia nitrogen and grows mushroom, within the shortest time, the amino in waste water, mushroom etc. are separated, grow to amino conversion and mushroom to create conditions, effectively can control the growth of amino conversion and various mushroom, so the present invention does not need process ammonia nitrogen and various mushroom microorganism, therefore without the need to building a large amount of various treating ponds, water quality can be up to standard.
2, further, the mud after flocculation concentrates by the present invention, after reducing water ratio, and then can reduce sludge quantity, then transport outward discharge.Further again, by thickened sludge by filter press, the mud outward transport discharge after press filtration, the waste water after press filtration can enter flocculation basin circular treatment.
Embodiment
Below in conjunction with embodiment, the present invention will be further described, therefore do not limit the present invention among described scope of embodiments.
embodiment 1
A treatment process for gelatine wastewater, comprises the following steps:
1) the various waste water produced in gelatine production course are carried out preliminary solid-liquid separation respectively by grid; Waste water comprises: pH value is the raw hide rinse water 500 tons of 11, and pH value is the pickling rinse water 400 tons of 6, and pH value is in 6 and rinse water 400 tons, and pH value is other waste water 500 tons of 8;
2) the various waste water through preliminary solid-liquid separation are passed into flocculation basin to carry out stirring, mixing, obtaining pH value is 8 composite wastes;
3) add PAC in composite waste by the dosage of 0.2mg/l, flocculation sediment 4h, lower sediment is mud, supernatant liquid qualified discharge;
4) mud is carried out gravity concentration, the mud outward transport discharge after concentrated.
embodiment 2
A treatment process for gelatine wastewater, comprises the following steps:
1) the various waste water produced in gelatine production course are carried out preliminary solid-liquid separation respectively by grid; Waste water comprises: pH value is the raw hide rinse water 800 tons of 13, and pH value is the pickling rinse water 800 tons of 4, and pH value is in 7 and rinse water 600 tons, and pH value is other waste water 500 tons of 6;
2) the various waste water through preliminary solid-liquid separation are passed into flocculation basin to carry out stirring, mixing, obtain the composite waste that pH value is 9;
3) add PAC and PAM in composite waste by the dosage of 0.3mg/l and 0.2mg/l respectively, flocculation sediment 2h, lower sediment is mud, supernatant liquid qualified discharge;
4) mud is carried out centrifugal concentrating, the mud after concentrated is by filter press, and the mud outward transport discharge after press filtration, the waste water after press filtration enters flocculation basin circular treatment.
embodiment 3
A treatment process for gelatine wastewater, comprises the following steps:
1) the various waste water produced in gelatine production course are carried out preliminary solid-liquid separation respectively by grid; Waste water comprises: pH value is the raw hide rinse water 600 tons of 12, and pH value is the pickling rinse water 800 tons of 5, and pH value is in 6.5 and rinse water 800 tons, and pH value is other waste water 500 tons of 6;
2) the various waste water through preliminary solid-liquid separation are passed into flocculation basin to carry out stirring, mixing, obtaining pH value is 7 composite wastes;
3) add PFS and PAM in composite waste by the dosage of 0.2mg/l and 0.4mg/l respectively, flocculation sediment 2h, lower sediment is mud, supernatant liquid qualified discharge;
4) mud is carried out centrifugal concentrating, the mud after concentrated is by filter press, and the mud outward transport discharge after press filtration, the waste water after press filtration enters flocculation basin circular treatment.
embodiment 4
A treatment process for gelatine wastewater, comprises the following steps:
1) the various waste water produced in gelatine production course are carried out preliminary solid-liquid separation respectively by grid; Waste water comprises: pH value is the raw hide rinse water 500 tons of 11, and pH value is the pickling rinse water 1000 tons of 4, and pH value is in 6 and rinse water 1000 tons, and pH value is other waste water 400 tons of 6;
2) the various waste water through preliminary solid-liquid separation are passed into flocculation basin to carry out stirring, mixing, obtaining pH value is 6.5 composite wastes;
3) add PFS in composite waste by the dosage of 0.6mg/l, flocculation sediment 2h, lower sediment is mud, supernatant liquid qualified discharge;
4) mud is carried out gravity concentration, the mud after concentrated is by filter press, and the mud outward transport discharge after press filtration, the waste water after press filtration enters flocculation basin circular treatment.
control experiment group 1
Be with the difference of embodiment 1, waste water is only the raw hide rinse water that pH value is 11 ~ 13.
control experiment group 2
Be with the difference of embodiment 2, waste water is only the pickling rinse water that pH value is 4 ~ 6.
control experiment group 3
Be with the difference of embodiment 3, waste water is only the neutralized wastewater that pH value is 6 ~ 7.
control experiment group 4
Be with the difference of embodiment 4, waste water is only other waste water that pH value is 6 ~ 8.
Experimental result reference table 1, in table 1, in control experiment group 1 ~ 4, before and after process, the COD of waste water and ammonia nitrogen are all the mean value of each group that gets.
Table 1: waste water situation before and after process
As can be seen from Table 1, if separately by direct for various waste water flocculation sediment, raw hide Cleaning Wastewater, because alkalescence is too large, the wastewater pH after flocculation sediment is higher, does not reach the requirement of discharge, utilize treatment process of the present invention, after various waste water mixing, pH value range is between 6.5 ~ 9, and carrying out the waste water after flocculation sediment can reach emission standard.
Ammonia nitrogen in gelatine wastewater is amino in protein degradation process being transformed, flocculation time of the present invention only 2 ~ 4 hours, when not having sufficient, chien shih waste water produces ammonia nitrogen and grows mushroom, effectively can control the growth of amino conversion and various mushroom, so the present invention does not need process ammonia nitrogen and various microorganism, therefore without the need to building a large amount of various treating ponds, water quality gets final product qualified discharge.So the present invention has fast, the simple feature of step, and good economic benefit can be brought.
Claims (8)
1. a treatment process for gelatine wastewater, is characterized in that, comprises the following steps:
1) the various waste water produced in gelatine production course are carried out preliminary solid-liquid separation respectively by grid;
2) the various waste water through preliminary solid-liquid separation are passed into flocculation basin to mix, obtain the composite waste that pH value is 6.5 ~ 9;
3) in composite waste, add flocculation agent flocculation sediment 2 ~ 4h, lower sediment is mud, supernatant liquid qualified discharge.
2. the treatment process of gelatine wastewater according to claim 1, is characterized in that, described flocculation agent is one or more of PAC, PFS, PAM.
3. the treatment process of gelatine wastewater according to claim 1, is characterized in that, the chemical feeding quantity of described flocculation agent is 0.2 ~ 0.6mg/l.
4. the treatment process of gelatine wastewater according to claim 3, is characterized in that, the chemical feeding quantity of described flocculation agent is 0.5 ~ 0.6mg/l.
5. the treatment process of gelatine wastewater according to claim 1, is characterized in that, described pH value is 7 ~ 8.
6. the treatment process of gelatine wastewater according to claim 1, is characterized in that, described mud is proceeded to sludge thickener and concentrates, obtain thickened sludge.
7. the treatment process of gelatine wastewater according to claim 6, is characterized in that, described simmer down to gravity concentration or centrifugal concentrating.
8. the treatment process of gelatine wastewater according to claim 6, is characterized in that, by described thickened sludge by filter press, the mud outward transport discharge after press filtration, the waste water after press filtration enters flocculation basin circular treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410621843.3A CN104355448A (en) | 2014-11-07 | 2014-11-07 | Treatment method for gelatin production wastewater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410621843.3A CN104355448A (en) | 2014-11-07 | 2014-11-07 | Treatment method for gelatin production wastewater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104355448A true CN104355448A (en) | 2015-02-18 |
Family
ID=52522789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410621843.3A Pending CN104355448A (en) | 2014-11-07 | 2014-11-07 | Treatment method for gelatin production wastewater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104355448A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107162263A (en) * | 2017-06-07 | 2017-09-15 | 浙江小神仙食品有限公司 | A kind of processing method of egg products processing waste water |
| CN112794559A (en) * | 2020-12-25 | 2021-05-14 | 安徽丰原明胶有限公司 | Device system and method for treating wastewater in bone gelatin production process |
| CN117263445A (en) * | 2023-10-18 | 2023-12-22 | 青岛洁源环境有限公司 | Landfill leachate concentrated solution treatment device and treatment method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1033269C (en) * | 1991-12-27 | 1996-11-13 | 陈利 | High-effective treating process of glue wastewater |
-
2014
- 2014-11-07 CN CN201410621843.3A patent/CN104355448A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1033269C (en) * | 1991-12-27 | 1996-11-13 | 陈利 | High-effective treating process of glue wastewater |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107162263A (en) * | 2017-06-07 | 2017-09-15 | 浙江小神仙食品有限公司 | A kind of processing method of egg products processing waste water |
| CN112794559A (en) * | 2020-12-25 | 2021-05-14 | 安徽丰原明胶有限公司 | Device system and method for treating wastewater in bone gelatin production process |
| CN117263445A (en) * | 2023-10-18 | 2023-12-22 | 青岛洁源环境有限公司 | Landfill leachate concentrated solution treatment device and treatment method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100406399C (en) | Method and system for harnessing consumer waste landfill percolate | |
| CN104710087B (en) | Hypoxia-aerobic comprehensive treatment method for tannery waste water | |
| CN105693029A (en) | Landfill leachate treatment process | |
| CN103304093B (en) | Device and method for advanced denitrification and phosphorous removal of municipal wastewater | |
| CN208814790U (en) | A kind of concentration strong brine softening of steel wastewater removes hard processing unit | |
| CN103408201B (en) | The treatment process of trade effluent during silicon wafer mortar reclaims | |
| CN103896401A (en) | Water treatment device for remaining sludge decrement and enhanced biological denitrification and dephosphorization and method | |
| CN112591951A (en) | Catalytic electrolysis purification system and purification method for municipal sewage | |
| CN109942150A (en) | A kind of waste vegetable oil utilizes the processing method of production waste water | |
| CN103663796A (en) | Deep dephosphorization method for slightly-polluted water and equipment thereof | |
| CN104355448A (en) | Treatment method for gelatin production wastewater | |
| CN102976520A (en) | High-concentration ammonia-nitrogen wastewater treatment process | |
| CN104891753A (en) | Wastewater treatment process and wastewater treatment system | |
| CN104478159B (en) | The method of a kind of sodium formate method sodium hydrosulfite wastewater process | |
| CN109574365A (en) | A kind of the materialization sewage disposal system and method for synchronous deamination phosphorus removing | |
| CN117466479A (en) | Low-carbon recycling treatment process for bean product wastewater | |
| CN205368049U (en) | Sizing agent effluent treatment plant | |
| CN103896457A (en) | Fine chemical wastewater treatment process | |
| CN207435283U (en) | Chicken manure fermenting biogas slurry resource recycling utilizes system | |
| CN108069570B (en) | Method for removing carbon, nitrogen and phosphorus in aquaculture wastewater | |
| CN107572731B (en) | Aerobic-precipitation treatment device and treatment method for high-salt high-ammonia nitrogen high-phosphorus wastewater | |
| CN103910469B (en) | The treatment process of the brine waste that food-processing produces | |
| CN110615579A (en) | Method for treating biogas slurry generated after anaerobic digestion of organic matters | |
| CN103523908B (en) | Synchronous high-efficiency biological phosphorus removing and reclaiming system and method based on activated sludge process | |
| CN211595362U (en) | High-salt-content high-organic-matter chemical wastewater treatment device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150218 |