CN103739140B - A kind of Liquor factory high-concentration organic wastewater treatment technology - Google Patents
A kind of Liquor factory high-concentration organic wastewater treatment technology Download PDFInfo
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Abstract
The present invention discloses a kind of Liquor factory high-concentration organic wastewater treatment technology and device, belongs to white wine field technical field of waste water processing.Comprise the following steps: high-concentration waste water enters comprehensive wastewater equalizing tank after pre-treatment, pre-acidified, anaerobic treatment; Low concentration wastewater enters CASS pond and carries out Aerobic biological process after pre-treatment, filtration; Sludge treatment.Present invention process treatment effect is stable, working cost is lower, and technical process is simple, and floor space is little, and investment comparatively economizes, and after treatment, reclamation rate reaches more than 95% to waste water, real realization " zero release ".
Description
Technical field
The invention belongs to the wastewater treatment of white wine field, the process of the high concentrated organic wastewater of particularly liquor production process generation, specifically a kind of distillery high concentrated organic wastewater waste water treatment process.
Background technology
Liquor production take water as medium, the waste water produced can be divided into two portions, a part is high concentrated organic wastewater, comprise distillation bottom pot water, fermentation french drain water, distillation workshop section ground flushing water, Chinese sorghum wash-down water during storehouse percolating water of going with wine " lower husky " and " rough sand " technological operation and immersion water, be a kind of colloidal solution, organism and suspended substance are all very high, another part is low-concentration organic waste water, comprise water coolant, rinse water, be the main body of waste water, can reclaim.According to analysis, often produce the 65%vol white wine of 1t, about water consumption 60t, produce waste water 48t, blowdown flow rate is very large.Liquor industry development in recent years grows stronger day by day, and the environmental problem simultaneously brought also is on the rise.Although the white wine wastewater of China administers the exploration in existing more than ten years, general status is unsatisfactory.First, liquor industry pollution treatment ratio is lower, and many small-sized small towns distillery waste does not process at all.Secondly, the disposable input of large-scale wine industry waste water disposal facility is high, complex process, and initial failure period is long, and management expectancy is high, and processing cost is high.And the waste water treatment process of many breweries does not often produce a desired effect or because extending underload, also needs continuous technological transformation even to rebuild.The big and small Liquor-making Enterprises & of China reaches family more than 10,000, and total blowdown flow rate is quite large, and therefore, Liquor-making Enterprises & is in light industry Zhong Shige heavy polluter.
Summary of the invention
The object of the present invention is to provide a kind of Liquor factory high-concentration organic wastewater treatment technology.
Object of the present invention can be achieved through the following technical solutions:
A kind of Liquor factory high-concentration organic wastewater treatment technology, is characterized in that, comprise the following steps:
(1) Workshop Production high-concentration waste water drains into preliminary sedimentation tank I by being pumped in rotating screen after separating particles suspended substance, settling tank I water outlet enters in equalizing tank, thermometer is established in equalizing tank, cool when temperature is then promoted to cooling tower with cooling circulating water pump more than 40 DEG C, cooling tower water outlet enters in pre-acidified pond, the water outlet of pre-acidified pond is promoted to IEHC reactor by water service pump and carries out anaerobic digestion, adopting reactor bottom water inlet to reflux with inner-outer circulation form makes material fully contact with anaerobic grain sludge, anaerobic digestion solution after two-stage triphase separator is separated drains in composite waste equalizing tank through circulating water channel,
(2) low concentration wastewater is removed after large granular impurity through grid and is entered water collecting basin, and then after the further separating particles suspended substance of rotary drum filter, drain into preliminary sedimentation tank II, preliminary sedimentation tank II water outlet enters composite waste equalizing tank;
(3) water outlet of composite waste equalizing tank is promoted to CASS pond by pump and carries out Aerobic biological process, CASS pond supernatant liquor enters blowoff basin through water decanter, then promoted by pump after static mixer dosing, flow through shifting sand filter filtration, then get final product standard discharge after disinfecting;
(4) in preliminary sedimentation tank I, preliminary sedimentation tank II, IEHC reactor, CASS pond, mud directly drains into sludge thickener, after concentrated, carry out mechanical dehydration with being pumped to belt filter press, dry mud outward transport, and filtrate and sludge thickener supernatant liquor are back in water collecting basin;
(5) biogas of IEHC reactor generation is after gas-liquid separator, directly can burn, also recyclable rear recycling to auto-ignition combustion device.
In described step (1), in pre-acidified pond, water temperature is at 35 ~ 38 DEG C, and pH is 6.5 ~ 8.5.
Beneficial effect of the present invention: a kind of distillery's high concentrated organic wastewater waste water treatment process of the present invention and device, for the waste water of high COD, high chroma, difficult for biological degradation, adopt anaerobic-aerobic uniting array treatment process, tool has the following advantages:
1, technical process is simple, and CASS pond has the allomeric function of reaction, precipitation, draining, need not build second pond and preliminary sedimentation tank facility again, and therefore sewage treatment facility has occupation of land less, invests little advantage.
2, on the basis of qualified discharge, be becoming tight day in water supply, when rising steadily by water rate, Treated sewage reusing, saves data.
3, aerobic and anaerobic environment alternately occurs, not easily produces sludge bulking.
4, surplus sludge volume is little, stable in properties, and the mud of traditional activated sludge process is generally 5 ~ 10 days age, and CASS method mud age is about 25 days, and excess sludge good stability, dewatering is good, and the mud of generation is few.
5, economic operating cost, denitrogenation dephosphorizing does not need outer adding medicine.
Embodiment
Below in conjunction with specific embodiment, the present invention is described in further detail.
The waste water quality index that certain Liquor-making Enterprises & is discharged:
CODcr：～24000mg/L，BOD5：～15000mg/L，SS：～620mg/L，pH：3.5～4.0
Treatment process of the present invention is:
Workshop Production high-concentration waste water is directly pumped in rotating screen by waste water lifting in workshop outlet and drains into preliminary sedimentation tank I after separating particles suspended substance, settling tank I water outlet enters in equalizing tank, thermometer is established in equalizing tank, cool when temperature is then promoted to cooling tower with cooling circulating water pump more than 40 DEG C, cooling tower water outlet enters in pre-acidified pond, in control pre-acidified pond, water temperature is at 35 ~ 38 DEG C, and PH is 6.5 ~ 8.5.The water outlet of pre-acidified pond is promoted to IEHC reactor by water service pump and carries out anaerobic digestion, adopting reactor bottom water inlet to reflux with inner-outer circulation form makes material fully contact with anaerobic grain sludge, and the anaerobic digestion solution after two-stage triphase separator is separated drains in composite waste equalizing tank through circulating water channel.
Other low concentration wastewater is collected through pipeline and is removed through coarse rack and enters in water collecting basin after large granular impurity, drains in preliminary sedimentation tank II after being then pumped to the further separating particles suspended substance of rotary drum filter by waste water lifting.Waste water enters composite waste equalizing tank and fully mixes with anaerobic effluent remove fine suspension in preliminary sedimentation tank II after, diving mixer is established to stir in preliminary sedimentation tank II, through the adjustment of 3 ~ 4 hours in pond, be promoted to CASS pond by pump again and carry out Aerobic biological process, CASS pond supernatant liquor enters blowoff basin through water decanter, gets final product standard discharge after disinfecting after then flowing through shifting sand filter filtration by pump lifting after static mixer dosing again.
In preliminary sedimentation tank I, preliminary sedimentation tank II, IEHC reactor, CASS pond, mud directly drains into sludge thickener, after concentrated, carry out mechanical dehydration with being pumped to belt filter press, and dry mud outward transport, filtrate and sludge thickener supernatant liquor are back in water collecting basin.
The biogas that IEHC reactor produces, after gas-liquid separator, directly can burn to auto-ignition combustion device, also recyclable rear recycling.
Effluent quality after process of the present invention:
COD
cr≤ 50mg/L, BOD
5≤ 10mg/L, SS≤10mg/L, pH=6.5 ~ 9, colourity≤30 times
Table 1 is the present invention's each section of effluent quality index (unit is all with mg/L)
Above content is only to technique example of the present invention and explanation; affiliated those skilled in the art make various amendment to described specific embodiment or supplement or adopt similar mode to substitute; only otherwise depart from the technique of invention or surmount this scope as defined in the claims, protection scope of the present invention all should be belonged to.
Claims (1)
1. a Liquor factory high-concentration organic wastewater treatment technology, is characterized in that, comprises the following steps:
(1) Workshop Production high-concentration waste water drains into preliminary sedimentation tank I by being pumped in rotating screen after separating particles suspended substance, preliminary sedimentation tank I water outlet enters in equalizing tank, thermometer is established in equalizing tank, cool when temperature is then promoted to cooling tower with cooling circulating water pump more than 40 DEG C, cooling tower water outlet enters in pre-acidified pond, the water outlet of pre-acidified pond is promoted to IEHC reactor by water service pump and carries out anaerobic digestion, adopting reactor bottom water inlet to reflux with inner-outer circulation form makes material fully contact with anaerobic grain sludge, anaerobic digestion solution after two-stage triphase separator is separated drains in composite waste equalizing tank through circulating water channel,
(2) low concentration wastewater is removed after large granular impurity through grid and is entered water collecting basin, and then after the further separating particles suspended substance of rotary drum filter, drain into preliminary sedimentation tank II, preliminary sedimentation tank II water outlet enters composite waste equalizing tank;
(3) water outlet of composite waste equalizing tank is promoted to CASS pond by pump and carries out Aerobic biological process, CASS pond supernatant liquor enters blowoff basin through water decanter, then promoted by pump after static mixer dosing, flow through shifting sand filter filtration, then get final product standard discharge after disinfecting;
(4) in preliminary sedimentation tank I, preliminary sedimentation tank II, IEHC reactor, CASS pond, mud directly drains into sludge thickener, after concentrated, carry out mechanical dehydration with being pumped to belt filter press, dry mud outward transport, and filtrate and sludge thickener supernatant liquor are back in water collecting basin;
(5) biogas of IEHC reactor generation is after gas-liquid separator, directly burns to auto-ignition combustion device, or recycling after reclaiming.
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| CN201310568525.0A CN103739140B (en) | 2013-11-15 | 2013-11-15 | A kind of Liquor factory high-concentration organic wastewater treatment technology |
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| CN104787961A (en) * | 2015-03-23 | 2015-07-22 | 北京黎晨环保节能科技有限公司 | Efficient and energy-saving system for treating and recycling high-concentration organic wastewater and method thereof |
| CN110950493B (en) * | 2019-12-04 | 2022-08-30 | 金徽酒股份有限公司 | White spirit production wastewater treatment system and method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102910786A (en) * | 2012-11-06 | 2013-02-06 | 贵州清禾生态科技有限公司 | Method and equipment for high-concentration alcohol waste water treatment |
| CN202849208U (en) * | 2012-09-20 | 2013-04-03 | 广西汇泰环保科技有限公司 | Wastewater treatment system during production of white spirit |
| CN103193366A (en) * | 2013-05-04 | 2013-07-10 | 郑州大学 | Integrated treatment method of corn alcohol wastewater |
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| JPS6154293A (en) * | 1984-08-24 | 1986-03-18 | Hitachi Zosen Corp | Treatment of high concentrated organic waste water |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202849208U (en) * | 2012-09-20 | 2013-04-03 | 广西汇泰环保科技有限公司 | Wastewater treatment system during production of white spirit |
| CN102910786A (en) * | 2012-11-06 | 2013-02-06 | 贵州清禾生态科技有限公司 | Method and equipment for high-concentration alcohol waste water treatment |
| CN103193366A (en) * | 2013-05-04 | 2013-07-10 | 郑州大学 | Integrated treatment method of corn alcohol wastewater |
Non-Patent Citations (1)
| Title |
|---|
| 刘斌.水解酸化+IC+CASS+BAF处理白酒废水工程.《广东化工》.2013,第40卷(第8期),第105-106页第1节、第106页第3.2节，图1. * |
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Address after: 246005 No.80 Tianzhushan Road, Anqing City, Anhui Province Patentee after: Anqing Hulk Environmental Technology Co.,Ltd. Address before: 246005 No.80 Tianzhushan Road, Anqing City, Anhui Province Patentee before: ANHUI GREEN TITAN ENVIRONMENTAL TECHNOLOGY Co.,Ltd. |