CN102649613A - Recycling processing technology for legumelin wastewater - Google Patents

Recycling processing technology for legumelin wastewater Download PDF

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Publication number
CN102649613A
CN102649613A CN2011100469237A CN201110046923A CN102649613A CN 102649613 A CN102649613 A CN 102649613A CN 2011100469237 A CN2011100469237 A CN 2011100469237A CN 201110046923 A CN201110046923 A CN 201110046923A CN 102649613 A CN102649613 A CN 102649613A
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China
Prior art keywords
water
wastewater
anaerobic
multistage
waste water
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Pending
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CN2011100469237A
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Chinese (zh)
Inventor
谢昕
王吉辉
许加苗
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Shandong Benyuan Environmental Science & Technology Co Ltd
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Shandong Benyuan Environmental Science & Technology Co Ltd
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Priority to CN2011100469237A priority Critical patent/CN102649613A/en
Publication of CN102649613A publication Critical patent/CN102649613A/en
Pending legal-status Critical Current

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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E50/00Technologies for the production of fuel of non-fossil origin
    • Y02E50/30Fuel from waste, e.g. synthetic alcohol or diesel

Abstract

The invention discloses a recycling processing technology for legumelin wastewater. Discharged water can reach GB8978-96 first-class discharging standard. The recycling processing technology comprises the following steps of: (1) adjusting and solid-liquid separating by a preprocessing unit, namely, discharging water from a workshop into an adjusting tank, balancing water quality and water quantity, and then lifting to a coagulative precipitation tank, adjusting pH value and adding drugs, thereby flocculating and precipitating the suspended albumen and gel albumen therein and separating from the discharged water; (2) distributing water by an anaerobic processing unit and an efficient anaerobic reactor, namely, feeding the preprocessed wastewater into a water distributing tank, controlling all indexes of the wastewater to meet the water entering condition of anaerobic reaction, and then lifting into the efficient anaerobic reactor and converting a large amount of COD into methane; and (3) performing multistage A/O processing technology and solid-liquid separation by an aerobic processing unit, causing aerobic water to flow into an multistage A/O tank, and performing multi-stage nitrifying denitrifying, thereby achieving a purpose of removing carbon and nitrogen and realizing the standard discharging of wastewater.

Description

The clear waste water reclaiming treatment technology of a kind of beans
Technical field
Patent of the present invention relates to technical field of sewage, specifically is a kind of resource treatment technique to high COD, high ammonia-nitrogen wastewater.
Background technology
The clear waste water of beans is mainly from the acid out separation phase centrifuge dehydration separation circuit of soybean protein isolate production process; Principal pollutant in the waste water are high-enriched organics and small amounts of inorganic component; Wherein organism is mainly solid-state or solvability albumen and polysaccharide etc.; The characteristics of this type of waste water are that organic content is high, protein contnt is high, water quality is acid, and biodegradability is fine.
The soybean protein isolate waste water treatment is the difficult problem of puzzlement manufacturing enterprise always for many years.In order to remove a large amount of organism, the biological treatment that most of enterprise has all adopted anaerobic and aerobic to combine in WWT.But biochemical treatment efficient is low, the facility seriously corroded, and problems such as crystalline polamer is obvious, pollution treatment expense height cause most of enterprise sewage quite difficulty of product that reaches up to standard.
To the ubiquitous problem of enterprise, through for many years the practice, we explore the clear waste water reclaiming treatment technology of a kind of beans, sewage is up to standard reach product in, can create considerable economic for enterprise.
Summary of the invention
The clear waste water reclaiming treatment technology of a kind of beans that provides of the present invention day really solves blowdown enterprise difficulty, the problem that the pollution treatment expense is high of producing that reach up to standard.
The technical scheme that the present invention takes, process step is following:
1) pretreatment unit adopts adjusting+solid-liquid separation: workshop Lai Shui enters equalizing tank; After the even water yield of balanced water quality, be promoted to coagulative precipitation tank, through regulating pH value and adding PAC, PAM; Make wherein suspension albumen and colloid albumen flocculation sediment, and go out water sepn.
2) the anaerobic treatment unit adopts water distribution+high efficiency anaerobic reactor: will pass through pretreated waste water and feed distribution reservoir, and control well after each item water inlet condition, and promote high efficiency anaerobic reactor, a large amount of COD are converted into biogas at this.High efficiency anaerobic reactor adopts the BYIC anaerobic reactor, and this reactor drum is a continuous exploration practice on the basis of inner circulation reactor abroad, final form have a more anaerobic reactor of optimisation technique characteristics.It is made up of mixing zone, sludge bulking bed, precision processing district and four parts of the recycle system.BYIC reactor drum bottom is a high load region, and the upper strata is a low load region.Water inlet gets into first reaction chamber and anaerobic grain sludge uniform mixing by reactor bottom; Most of organism here is degraded and is converted into biogas; The biogas that is produced is collected by the gas skirt of the first anaerobic reaction chamber, and biogas rises along upspout, when biogas rises is promoted to the mixed solution of first reaction chamber gas-liquid separator of BYIC reactor head; The biogas that is separated is drained from the conduit at gas-liquid separator top; Isolated muddy water mixed solution will be back to first reaction chamber bottom along return line, and with the granule sludge and water inlet thorough mixing of bottom, realize the circulating inside of mixed solution.Present technique adopts the anaeration in normal temperature operation, and promptly 37 ℃ ± 1.The COD clearance of this equipment can reach 93%, and the biogas income is obvious.
3) the aerobic treatment unit adopts multistage A/O treatment process+solid-liquid separation: from flowing to multistage A/O pond, reach the day of carbon and nitrogen removal through multistage nitration denitrification through the waste water of anaerobic treatment.Multistage A/O adopts multi-section water-inlet, has saved a large amount of additional carbon expenses.
Beneficial effect of the present invention is that suspension content is high in the clear waste water of said beans, and pH value is low; Organic content is high; Water quality is as easy as rolling off a log becomes sour, and the mode of passing through coagulating sedimentation as early as possible after should in equalizing tank, suitably adjusting can be removed the eutrophy elements such as nitrogen phosphorus in the non-dissolved matter matter simultaneously with suspended substance removal; After coagulating sedimentation was handled, the suspension content in the waste water can not influence the operation of high efficiency anaerobic reactor.The pre-treatment water outlet gets into distribution reservoir; Control well and promote high efficiency anaerobic reactor behind the anaerobic reaction terms and conditions, under the Decomposition of granule sludge, most of organism is converted into biomass energy in the waste water---biogas; Small portion assimilate into microbiological materials increases the granule sludge total amount.The anaerobism water outlet gets into the aerobic treatment system.In one-level A/O reaction tank, waste water reacts through nitration denitrification, can the most organic carbonization in the waste water be removed, and the total nitrogen in the waste water is removed about 70%.Total nitrogen in the water outlet of one-level O pond mainly shows as the form of nitric nitrogen, through secondary A pond, suitably replenishing under the situation of former water, accomplishes anti-nitration reaction, and the nitrogen element in the waste water can obtain steady removal.The carburizing reagent of excessive carbon source through secondary O pond is able to remove.After above operation was handled, water outlet can reach or be lower than " integrated wastewater discharge standard " (GB8978-1996) first grade discharging requirement.
Description of drawings
The process flow diagram that Fig. 1, the present invention take
Fig. 2, high efficiency anaerobic reactor COD degradation effect synoptic diagram
Fig. 3, high efficiency anaerobic reactor biogas output synoptic diagram.

Claims (3)

  1. Patent of the present invention discloses the clear waste water reclaiming treatment technology of a kind of beans, it is characterized in that following process step:
    1. pretreatment unit adopts adjusting+solid-liquid separation: workshop Lai Shui enters equalizing tank; After the even water yield of balanced water quality, be promoted to coagulative precipitation tank, through regulating pH value and adding PAC, PAM; Make wherein suspension albumen and colloid albumen flocculation sediment, and go out water sepn.
  2. 2. the anaerobic treatment unit adopts water distribution+high efficiency anaerobic reactor: feed distribution reservoir through pretreated waste water, after control waste water each item index meets the water inlet condition of anaerobic reaction, promote high efficiency anaerobic reactor, a large amount of COD are converted into biogas at this.
  3. 3. the aerobic treatment unit adopts multistage A/O treatment process+solid-liquid separation: the waste water through anaerobic treatment flows to multistage A/O pond certainly, through multistage nitration denitrification, reaches the purpose of carbon and nitrogen removal, realizes discharged wastewater met the national standard.
CN2011100469237A 2011-02-28 2011-02-28 Recycling processing technology for legumelin wastewater Pending CN102649613A (en)

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Application Number Priority Date Filing Date Title
CN2011100469237A CN102649613A (en) 2011-02-28 2011-02-28 Recycling processing technology for legumelin wastewater

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Application Number Priority Date Filing Date Title
CN2011100469237A CN102649613A (en) 2011-02-28 2011-02-28 Recycling processing technology for legumelin wastewater

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CN102649613A true CN102649613A (en) 2012-08-29

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103011515A (en) * 2012-12-13 2013-04-03 杭州绿色环保技术开发有限公司 Soybean wastewater biochemical treatment process and device
CN106007235A (en) * 2016-07-20 2016-10-12 江苏南大环保科技有限公司 Method for efficiently treating plant protein wastewater
CN106006909A (en) * 2016-07-06 2016-10-12 临邑禹王植物蛋白有限公司 Processing method of bean skim wastewater
CN106277652A (en) * 2016-10-11 2017-01-04 临邑禹王植物蛋白有限公司 A kind of anaerobic reaction pretreatment system and process technique thereof
CN110395852A (en) * 2019-08-28 2019-11-01 新乡市绿丰环保工程有限公司 A kind of activity sludge reflux Treatment of Soybean Products Wastewater method

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1302770A (en) * 2001-02-27 2001-07-11 机械工业部机械科学研究院环境保护技术与装备研究所 Multi-stage anaerobic-aerobic process for treating sewage
CN101239760A (en) * 2008-03-10 2008-08-13 胡志刚 Pretreatment technique for industrial bean clear water

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1302770A (en) * 2001-02-27 2001-07-11 机械工业部机械科学研究院环境保护技术与装备研究所 Multi-stage anaerobic-aerobic process for treating sewage
CN101239760A (en) * 2008-03-10 2008-08-13 胡志刚 Pretreatment technique for industrial bean clear water

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103011515A (en) * 2012-12-13 2013-04-03 杭州绿色环保技术开发有限公司 Soybean wastewater biochemical treatment process and device
CN106006909A (en) * 2016-07-06 2016-10-12 临邑禹王植物蛋白有限公司 Processing method of bean skim wastewater
CN106007235A (en) * 2016-07-20 2016-10-12 江苏南大环保科技有限公司 Method for efficiently treating plant protein wastewater
CN106277652A (en) * 2016-10-11 2017-01-04 临邑禹王植物蛋白有限公司 A kind of anaerobic reaction pretreatment system and process technique thereof
CN110395852A (en) * 2019-08-28 2019-11-01 新乡市绿丰环保工程有限公司 A kind of activity sludge reflux Treatment of Soybean Products Wastewater method

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Application publication date: 20120829