CN102701508A - Treatment method for chlorine-containing wastewater in production of bone gelatin - Google Patents
Treatment method for chlorine-containing wastewater in production of bone gelatin Download PDFInfo
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- CN102701508A CN102701508A CN2012102128956A CN201210212895A CN102701508A CN 102701508 A CN102701508 A CN 102701508A CN 2012102128956 A CN2012102128956 A CN 2012102128956A CN 201210212895 A CN201210212895 A CN 201210212895A CN 102701508 A CN102701508 A CN 102701508A
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Abstract
The invention discloses a treatment method for chlorine-containing wastewater in production of bone gelatin, which comprises the following steps of: roughly filtering the wastewater in production of the bone gelatin by using a frame filter to remove crystals and incompletely-reacted bone materials; dehydrating the wastewater of which the crystals and the incompletely-reacted bone materials are removed by using an ultrafiltration membrane to acquire a calcium chloride solute containing stock solution to be evaporated; evaporating the stock solution to be evaporated by using a triple-effect evaporator to obtain a concentrated solution; and evaporating the concentrated solution by using an evaporating crystallizer, and thus finally obtaining calcium chloride crystals. According to the treatment method, a small amount of solid impurity of the chlorine-containing wastewater generated in production of the bone gelatin can be filtered and removed by using the frame filter, the chlorine-containing wastewater is subjected to dehydration by the ultrafiltration membrane and evaporation by the triple-effect evaporator to obtain the stable concentrated solution, the concentrated solution is evaporated and crystallized to obtain a calcium chloride product, therefore, comprehensive utilization of the wastewater is realized, and sewage discharge is reduced.
Description
Technical field:
The present invention relates to technical field of sewage, the treatment process of chlorine-contained wastewater during particularly a kind of bone gelatin(e) is produced.
Background technology:
Bone gelatin(e) is that beastly bone is a raw material, adopts a complete set of stainless steel equipment, through washing, pickling, neutralization, extraction, filtration, concentrate, tens procedure flow lines such as sterilization, oven dry process.The gelatin of producing is a kind of tasteless, colourless (having a little light yellow), translucent, hard non-crystalline state thing, and it is insoluble to organic solvent, and its water-absorbent is strong, viscosity is high; Gelatin is the peptide molecule polymeric material; Be the hydrolysate of collagenic protein, so can be used as a kind of additive, the edible Gelatinum oxhide of production has the physicochemical property of many uniquenesses and higher nutritive value because of it; Be rich in 18 necessary seed amino acids of human body; It can be widely used in and produce empty hard capsule, soft capsule, confectionary products, can also make to produce that skin freezes, carnivorous can the additive of crystal-jelley, chocolate, beverage, beer.
The first procedure pickling during bone gelatin(e) is produced; Can produce a large amount of weary sour fluids and move back the sour water washing lotion, the pickling process is exactly to be placed on the bone end in the Hydrogen chloride (4--5%) to soak, and makes the calcium salt dissolving in the bone end; Mainly contain phosphate radical, chlorine root and calcium ion in its liquid; These liquid and calcium hydroxide react and generate calcium hydrophosphate crystal body and waste water, contain a large amount of calcium chloride in the waste water, and calcium chloride is solvend.But because chlorine root concentration high (about 20000 mg/litre), mikrobe can't survive, and makes these waste water to reduce COD with microbial method, and then causes environmental destruction.
Summary of the invention:
In view of this, be necessary to provide a kind of bone gelatin(e) that can reduce the chlorinity in the waste water that bone gelatin(e) produces in producing produce in the treatment process of chlorine-contained wastewater.
The treatment process of chlorine-contained wastewater during a kind of bone gelatin(e) is produced may further comprise the steps:
Utilize plate filter that the waste water that produces in the bone gelatin(e) production is carried out coarse filtration and reach the not aggregate of complete reaction to remove xln;
Utilize ultra-filtration membrane to removed xln and not the waste water of the aggregate of complete reaction dewater to obtain to contain the stoste to be evaporated of calcium chloride solute;
Utilize triple-effect evaporator to treat vaporizing raw liquor and carry out evaporation operation, obtain liquid concentrator;
Utilize evaporative crystallizer that liquid concentrator is evaporated and finally obtain the crystallization of calcium chloride body.
The present invention can be with the chlorine-contained wastewater that produces in the manufacturing of gelatin; Filter a spot of solid impurity of removal with flame filter press, through ultra-filtration membrane dehydration and triple-effect evaporator evaporation, obtain stable liquid concentrator again; The revaporization crystallization; Obtain the calcium chloride product, realized the comprehensive utilization of waste water, also reduced sewage discharge.
Description of drawings:
Accompanying drawing 1 is the process flow figure of chlorine-contained wastewater during bone gelatin(e) is produced.
Among the figure: the process method step S302～S308 of chlorine-contained wastewater during bone gelatin(e) is produced
Embodiment:
The treatment process of chlorine-contained wastewater adopts the method for physics to replace original microbial method to administer sewage in the bone gelatin(e) production provided by the invention, makes chloride waste water with calcium ion become useful product.Please referring to Fig. 1, it is the treatment process of chlorine-contained wastewater during the bone gelatin(e) of a preferred embodiments is produced, and may further comprise the steps:
Step S302 utilizes plate filter that the waste water that produces in the bone gelatin(e) production is carried out coarse filtration and reaches the not aggregate of complete reaction to remove xln.Wherein, xln is the calcium hydrophosphate crystal body.
Step S304, utilize ultra-filtration membrane to removed xln and not the waste water of the aggregate of complete reaction dewater to obtain to contain the stoste to be evaporated of calcium chloride solute.Wherein, obtain stoste to be evaporated and arrive collecting tank through pump delivery, then the stoste to be evaporated in the collecting tank is flowed to triple-effect evaporator, the concentration of the calcium chloride in the stoste to be evaporated is 11000mg/L.
Step S306 utilizes triple-effect evaporator to treat vaporizing raw liquor and carries out evaporation operation, obtains liquid concentrator.
Step S308 utilizes evaporative crystallizer that liquid concentrator is evaporated and finally obtains the crystallization of calcium chloride body.
In other embodiments, if the pH value of the waste water that bone gelatin(e) produces in producing less than 7 o'clock, is carried out coarse filtration, finly filtration and evaporation concentration and evaporative crystallization after the first pH value with the waste water that produces in the bone gelatin(e) production of need is adjusted to neutrality again.
The present invention has replaced original microbial method to administer sewage with the method for physics; Make chloride waste water become useful product with calcium ion; That is; Through plate filter the waste water that produces in the bone gelatin(e) production being carried out re-using ultra-filtration membrane after the coarse filtration sloughs the water in the waste water; With the stoste to be evaporated of the calcium chloride that obtains high density, and then utilize triple-effect evaporator, evaporative crystallizer to treat that vaporizing raw liquor evaporates and crystallization and finally obtain the crystallization of calcium chloride body, realize chloride of manufacturing of gelatin with the calcium ion wastewater zero discharge.The present invention does not have discharge of wastewater in producing, and realizing energy-saving and emission-reduction, produces product innovation, has created economic benefit.
Claims (2)
1. the treatment process of chlorine-contained wastewater during a bone gelatin(e) is produced may further comprise the steps:
Utilize plate filter that the waste water that produces in the bone gelatin(e) production is carried out coarse filtration and reach the not aggregate of complete reaction to remove xln;
Utilize ultra-filtration membrane to removed xln and not the waste water of the aggregate of complete reaction dewater to obtain to contain the stoste to be evaporated of calcium chloride solute;
Utilize triple-effect evaporator to treat vaporizing raw liquor and carry out evaporation operation, obtain liquid concentrator;
Utilize evaporative crystallizer that liquid concentrator is evaporated and finally obtain the crystallization of calcium chloride body.
2. the treatment process of chlorine-contained wastewater is characterized in that during bone gelatin(e) according to claim 1 was produced, and is further comprising the steps of: regulate the pH value of waste water, so that the pH value of waste water is neutral.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102128956A CN102701508A (en) | 2012-06-27 | 2012-06-27 | Treatment method for chlorine-containing wastewater in production of bone gelatin |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102128956A CN102701508A (en) | 2012-06-27 | 2012-06-27 | Treatment method for chlorine-containing wastewater in production of bone gelatin |
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| CN102701508A true CN102701508A (en) | 2012-10-03 |
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| CN2012102128956A Pending CN102701508A (en) | 2012-06-27 | 2012-06-27 | Treatment method for chlorine-containing wastewater in production of bone gelatin |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113061972A (en) * | 2021-03-05 | 2021-07-02 | 宁夏鑫浩源生物科技股份有限公司 | Method for producing calcium sulfate whiskers by using high-chlorine-root wastewater generated in bone gelatin production |
| CN113697998A (en) * | 2021-09-03 | 2021-11-26 | 自然资源部天津海水淡化与综合利用研究所 | Bone gelatin liming wastewater treatment method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101219797A (en) * | 2008-01-28 | 2008-07-16 | 王晓璐 | Method for separatingcalcium chloride and sodium chloride in ammonia distillation waste clear solution with nanofiltration technology and application of production by the method |
| CN102329036A (en) * | 2011-09-06 | 2012-01-25 | 江苏中圣高科技产业有限公司 | High-efficiency method for recovery treatment of saliferous wastewater under zero emission through residual heat utilization |
| KR20120067831A (en) * | 2010-12-16 | 2012-06-26 | 대한민국(농촌진흥청장) | Membrane for guiding bone tissue regeneration using silk protein and method for manufacturing thereof |
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2012
- 2012-06-27 CN CN2012102128956A patent/CN102701508A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101219797A (en) * | 2008-01-28 | 2008-07-16 | 王晓璐 | Method for separatingcalcium chloride and sodium chloride in ammonia distillation waste clear solution with nanofiltration technology and application of production by the method |
| KR20120067831A (en) * | 2010-12-16 | 2012-06-26 | 대한민국(농촌진흥청장) | Membrane for guiding bone tissue regeneration using silk protein and method for manufacturing thereof |
| CN102329036A (en) * | 2011-09-06 | 2012-01-25 | 江苏中圣高科技产业有限公司 | High-efficiency method for recovery treatment of saliferous wastewater under zero emission through residual heat utilization |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113061972A (en) * | 2021-03-05 | 2021-07-02 | 宁夏鑫浩源生物科技股份有限公司 | Method for producing calcium sulfate whiskers by using high-chlorine-root wastewater generated in bone gelatin production |
| CN113061972B (en) * | 2021-03-05 | 2022-06-28 | 宁夏鑫浩源生物科技股份有限公司 | Method for producing calcium sulfate whiskers by using high-chloride-content wastewater generated in bone gelatin production |
| CN113697998A (en) * | 2021-09-03 | 2021-11-26 | 自然资源部天津海水淡化与综合利用研究所 | Bone gelatin liming wastewater treatment method |
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Application publication date: 20121003 |