KR20040099519A - The dehydrated wastewater treatment system from food garbage using modulated a dissolved air floatation system and a electrical reaction apparatus - Google Patents
The dehydrated wastewater treatment system from food garbage using modulated a dissolved air floatation system and a electrical reaction apparatus Download PDFInfo
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- C—CHEMISTRY; METALLURGY
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- C02F9/00—Multistage treatment of water, waste water or sewage
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- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/38—Treatment of water, waste water, or sewage by centrifugal separation
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- 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
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
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- 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
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- C02F3/30—Aerobic and anaerobic processes
- C02F3/302—Nitrification and denitrification treatment
- C02F3/303—Nitrification and denitrification treatment characterised by the nitrification
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- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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- C02F3/30—Aerobic and anaerobic processes
- C02F3/302—Nitrification and denitrification treatment
- C02F3/307—Nitrification and denitrification treatment characterised by direct conversion of nitrite to molecular nitrogen, e.g. by using the Anammox process
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- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
- C02F3/308—Biological phosphorus removal
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Abstract
Description
본 발명은 음식물 폐기물에서 발생하는 고농도 폐수를 원심탈수하여 탈리된 폐수와 사료화나 퇴비과정에서 발생되는 음식물쓰레기 탈리액을 응집 및 부상분리, 생물학적처리 공정을 활용하는 처리시스템이다.The present invention is a treatment system that utilizes a biological treatment process for agglomeration, flotation, and biological treatment of high-density wastewater generated from food waste by centrifugal dewatering and waste food desorbed from food waste and feed waste or composting.
일반적으로 음식물 쓰레기나 각종 폐기물 등은 그 자체를 그대로 폐기할 수 없기때문에 상기 탈리액들을 분리한 다음, 이를 소각시키거나 재활용이 가능한 폐기물을 분리하여 건조하고 이 건조된 폐기물을 산업상 필요한 자원으로 재활용할 수 있도록 하고 있으며, 특히 상기 음식물 쓰레기 등은 고액 분리후 이를 소각 또는 퇴비화에 사용하고 있다.In general, food waste or various wastes cannot be disposed of as they are, so that the desorption liquids can be separated, and then incinerated or recycled wastes can be separated and dried, and these dried wastes can be recycled as industrial resources. In particular, the food waste and the like is used for incineration or composting after separation of solids.
상기 음식물 쓰레기를 처리함에 있어서는 많은 수분이 함유되어 있기 때문에 상기 음식물 쓰레기를 건조하고 소각시키는 방법만으로는 상기 음식물 쓰레기에 함유된 폐수를 모두 증발시키거나 처리할 수 없었으며, 이에 따라 상기 음식물 쓰레기에서 발생되는 폐수는 그대로 방출하게 되는 일이 발생되므로써 방출되는 폐수에 의한 수질의 오염을 야기시키게 되는 폐단이 있었다.Since the food waste contains a lot of water, only the method of drying and incinerating the food waste could not evaporate or treat all of the wastewater contained in the food waste. Wastewater was discharged as it is, and there was a wastewater that caused pollution of the water by the discharged wastewater.
또한, 상기 음식물 쓰레기를 그대로 매립시킬 경우에는 음식물 쓰레기에서 발생되는 폐수가 그대로 지반으로 침투되기 때문에 침출수에 의한 지하수의 오염과 더불어 토지를 오염시키게 되는 점등의 문제점이 있었다.In addition, when the food waste is landfilled as it is, wastewater generated from the food waste is infiltrated into the ground as it is, there is a problem of lighting that contaminates the land together with groundwater contamination by leachate.
본 발명은 원심탈수된 고농도 음식물폐수를 두 번의 가압부상분리와 생물학적 처리후 하수종말처리시설등에 연계처리하므로써, 하수처리장의 유입부하를 저감시킬뿐 아니라, 기존의 음식물 폐기물의 매립에 의한 침출수문제와 건조 소각에 의한 부분적인 처리후 방류문제를 해결 할 수 있다.The present invention not only reduces the inflow load of the sewage treatment plant by treating the centrifugal dewatered food wastewater in two separate pressurized flotation and biological treatment, but also reduces the inflow load of the sewage treatment plant. The problem of discharge after partial treatment by dry incineration can be solved.
도 1은 본 발명 실시예의 시스템을 나타내는 구성도이다.1 is a block diagram showing a system of an embodiment of the present invention.
<도면의 주요부분에 대한 부호 설명><Description of Signs of Major Parts of Drawings>
1 : 집수조1: sump tank
2 : 원심탈수기2: centrifugal dehydrator
3 : 유량조정조3: flow adjustment tank
4 : 1차 파이프응집기4: Primary Pipe Aggregator
5 : 1차 부상분리기5: primary float separator
6 : 응집제 탱크6: flocculant tank
7 : 혼화제 탱크7: admixture tank
8 : 중화제 탱크8: neutralizer tank
9 : 슬러지 저류조9: sludge storage tank
10 : 제1 저류조10: first storage tank
11 : 전기반응장치11: electric reaction device
12 : 제2 저류조12: second storage tank
13 : 약품공급설비13: chemical supply equipment
14 : 2차 파이프응집기14: secondary pipe agglomerator
15 : 2차 부상분리기15: secondary flotation separator
16 : 제3 저류조16: third reservoir
17 : 생물학적 처리수단17 biological treatment means
18 : 응집탱크18: coagulation tank
19 : 양이온 탱크19: cation tank
20 : 음이온 탱크20: anion tank
21 : 탈수수단21: dehydration means
22 : 방류조22: discharge tank
상기와 같은 목적을 달성하기 위해서 본 발명에서는 (a)고농도 음식물 폐기물을 원심탈수하여 탈리시키는 단계; (b)상기 탈리된 폐수와 사료화나 퇴비화과정에서 발생되는 음식물쓰레기 탈리액을 1차 파이프응집기와 가압부상분리조에 순차적으로 유입시켜 SS, BOD, COD를 제거하고 저부의 슬러지와 스컴슬러지는 슬러지저류조로 보내며 나머지 처리수는 전기반응장치를 통해 2차 부상분리에 적합한 수질로 조절하는 단계; (c) 상기 전기반응장치를 거친 폐수를 다시 2차 파이프응집기와 가압부상분리조에 유입시켜 SS, BOD, COD를 제거하고 슬러지는 슬러지 저류조로 보내며 나머지 처리수는 다음의 생물학적 공정으로 유입시키는 단계; (d)상기 처리된 폐수는 생물학적처리를 활용 혐기단계, 호기단계, 무산소단계, 침전단계를 적용시키므로써 유기물, 질소 및 인까지 동시 제거하고 슬러지는 제1저류조 제2 저류조 및 슬러지 저류조로 보내며 상등수는 방류조로 유입시켜 하수종말처리시설과 연계처리하여 방류하도록 구성된 시스템이다.In order to achieve the above object, the present invention comprises the steps of (a) centrifugal dehydration of food waste of high concentration; (b) by sequentially introducing the desorbed wastewater and the food waste desorbing liquid generated in the feed or composting process to the first pipe agglomerate and the pressure flotation separation tank to remove SS, BOD, COD and the sludge bottom and sludge sludge storage tank Sending the remaining treated water to an appropriate water quality for the secondary flotation separation through an electric reactor; (c) flowing the wastewater passed through the electric reactor back into the secondary pipe aggregator and the pressure flotation separation tank to remove SS, BOD and COD, and sending the sludge to the sludge storage tank, and introducing the remaining treated water into the next biological process; (d) The treated waste water is removed simultaneously with organic matter, nitrogen and phosphorus by applying anaerobic step, aerobic step, anoxic step, and precipitation step utilizing biological treatment, and the sludge is sent to the first storage tank, the second storage tank, and the sludge storage tank. Is a system configured to discharge into the discharge tank in connection with the sewage terminal treatment facility.
이하에서는 상기와 같이 구성된 본 발명의 작용상태를 좀더 상세하게 설명한다.Hereinafter will be described in more detail the working state of the present invention configured as described above.
크고 작은 고형물을 함유하고 있는 고농도의 음식물 폐수를 원심탈수기(2)를 통해 탈수하여 폐수를 탈리시키고 유량조정조(3)로 이송시키며, 상기 폐수가 탈리된 음식물 쓰레기는 슬러지 발효동으로 이송된다.The high concentration of food wastewater containing large and small solids is dewatered through the centrifugal dehydrator 2 to remove the wastewater and transferred to the flow adjusting tank 3, and the food waste from which the wastewater is removed is transferred to the sludge fermentation copper.
유량조정조(3)에서는 상기 탈리된 폐수를 충격부하가 없도록 일정유량을 1차 파이프응집기(4)로 보내며 응집제 탱크(7), 중화제 탱크(8), 혼화제 탱크(6)들에서 순차적으로 공급되는 처리제와 상기 폐수가 상기 1차 파이프응집기(4)에서 난류에 의하여 혼합 및 응집되며 부상분리기(9)로 이송된다. 응집된 플럭은 40마이크론 크기의 미세입자에 의해 부상되고 골판형 경사판 분리장치를 통하여 부상되며 부상된 슬러지는 스키머에 의해 수집되어 슬러지 저류조(9)로 이송되며 1차 가압부상조(5) 저부의 슬러지는 무주축 스크류에 의해 슬러지 저류조(9)로 이송된다.In the flow rate adjusting tank 3, a constant flow rate is sent to the primary pipe agglomerator 4 so that the desorbed wastewater does not have an impact load, and is sequentially supplied from the coagulant tank 7, the neutralizer tank 8, and the admixture tank 6. The treatment agent and the waste water are mixed and agglomerated by turbulence in the primary pipe agglomerator 4 and transferred to the flotation separator 9. The flocculated floc is injured by 40 micron-sized microparticles and is injured through the corrugated inclined plate separator, and the injured sludge is collected by the skimmer and transferred to the sludge storage tank (9). The sludge is conveyed to the sludge storage tank 9 by the spindleless screw.
상기 처리된 폐수는 전기반응장치(11)로 유입되어 2차 파이프응집(14) 및 2차 가압부상(15) 공정을 위하여 콜로이드성 물질을 갖는 응집에 적절한 수질로 조절된다.The treated wastewater is introduced into the electric reactor 11 and adjusted to the water quality suitable for flocculation with colloidal material for the secondary pipe agglomeration 14 and the secondary pressure flotation 15 process.
2차 파이프응집기(14)에서도 상기 1차 파이프응집기(4)에서와 같이 응집제, 혼화제, 중화제등의 처리제가 공급되며 난류에 의해서 혼합 및 응집된후 2차가압부상분리기(15)로 이송되어 부상제거된다. 두 번의 부상분리 공정을 거친 고농도의 폐수는 다음의 생물학적처리 공정으로 유입된다.Also in the secondary pipe agglomerator 14, as in the primary pipe agglomerator 4, a treating agent such as a flocculant, a admixture, a neutralizing agent, etc. is supplied, mixed and aggregated by turbulence, and then transferred to the secondary pressure flotation separator 15. Injuries are eliminated. High concentrations of wastewater after two flotation processes are introduced into the following biological treatment processes.
상기 처리된 폐수는 다음의 생물학적 처리수단(17)내의 전처리단계를 거쳐 산소공급이 없는 혐기단계가 형성되고 혐기단계에서는 미생물이 상기 폐수의 유기물을 섭취하면서 동시에 인을 용출하게 되며, 혐기단계를 거친 폐수는 호기단계에서 호기성 미생물과 산소에 의해 유기물이 산화되고, 질소는 아질산화와 질산화가 이루어진다. 상기 혐기단계에서 인을 방출한 미생물이 폐수내의 인을 과다 섭취한다. 이후 침전단계가 형성되어 고액분리가 이루어지고 무산소 단계가 형성되어 아질산성 질소와 질산성 질소가 질소가스로 제거된다. 상등수는 배출관을 통해 배출되고 침전된 슬러지의 일부는 상기 송풍기의 공기를 이용하는 공기흡출장치에 의해 제거되면서 폐수중의 유기물과 인 성분의 제거가 이루어진다. 상기과정을 반복 운전하여 처리효율을 더욱 향상 시킬 수 있다.The treated wastewater is subjected to a pre-treatment step in the next biological treatment means 17 to form an anaerobic step without oxygen supply, and in the anaerobic step, microorganisms inhale organic matter from the wastewater and simultaneously elute phosphorus and undergo an anaerobic step. Wastewater is oxidized by aerobic microorganisms and oxygen in the aerobic phase, and nitrogen is nitridated and nitrified. The microorganisms which released phosphorus in the anaerobic stage ingest excessive phosphorus in the wastewater. Subsequently, a precipitation step is formed to form a solid-liquid separation and an anoxic step is formed to remove nitrous nitrogen and nitrate nitrogen with nitrogen gas. The supernatant is discharged through the discharge pipe and part of the sludge precipitated is removed by the air suction device using the air of the blower to remove organic matter and phosphorus in the waste water. By repeating the above process, the processing efficiency can be further improved.
상기 생물학적처리수단(17)에서 유기물, 질소 및 인이 제거된 폐수는 방류조(22)를 거쳐 하수종말처리장으로 연계 처리된 후 방류되게 된다.Wastewater from which the organic matter, nitrogen and phosphorus are removed from the biological treatment means 17 is discharged after being linked to the sewage treatment plant via the discharge tank 22.
이상에서 살펴본 바와 같이, 음식물쓰레기에 함유된 폐수를 원심탈수기로 탈리시키고 가압, 부상작용 및 생물학적 처리를 통해 정화처리하여 수질을 향상시키며, 상기 수분이 탈리된 음식물 쓰레기는 발효를 시킬 수 있도록 하여 이를 재활용하도록 하므로써 상기 음식물 쓰레기에 의한 환경오염을 방지할 수 있게 되고, 상기 폐수를 정화시켜 배출하도록 하므로써 종래와 같이 음식물 쓰레기의 침출수가 그대로 지반으로 침투되어 지하수나 상하수도 및 토지가 오염되는 것을 방지하는데에 적용할 수 있다.As described above, the wastewater contained in the food waste is desorbed with a centrifugal dehydrator and purified through pressurization, flotation, and biological treatment to improve the water quality, and the food waste from which the water is removed can be fermented. By recycling, it is possible to prevent the environmental pollution caused by the food waste, and to clean and discharge the waste water to prevent the leachate of the food waste as it penetrates into the ground as it is conventionally to prevent contamination of groundwater, water and sewage and land. Applicable
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CN102329040A (en) * | 2011-06-03 | 2012-01-25 | 安徽华业化工有限公司 | Method for processing wastewater in production of synthetic perfume butyrolactones |
CN105621790A (en) * | 2015-12-25 | 2016-06-01 | 常州大学 | Method for processing high-concentration ammonia-nitrogen wastewater through soil infiltration |
CN107244787A (en) * | 2017-08-04 | 2017-10-13 | 盘锦宁泰能源科技有限公司 | A kind of oil-polluted water integrated conduct method and total system |
CN110759580A (en) * | 2019-07-31 | 2020-02-07 | 安徽环境科技集团股份有限公司 | Novel advanced sewage treatment process based on enhanced nitrogen and phosphorus removal |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN105461000A (en) * | 2015-12-25 | 2016-04-06 | 安徽继宏环保科技有限公司 | Dissolved gas floatation machine of urban household garbage treatment system |
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2003
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102329040A (en) * | 2011-06-03 | 2012-01-25 | 安徽华业化工有限公司 | Method for processing wastewater in production of synthetic perfume butyrolactones |
CN105621790A (en) * | 2015-12-25 | 2016-06-01 | 常州大学 | Method for processing high-concentration ammonia-nitrogen wastewater through soil infiltration |
CN107244787A (en) * | 2017-08-04 | 2017-10-13 | 盘锦宁泰能源科技有限公司 | A kind of oil-polluted water integrated conduct method and total system |
CN110759580A (en) * | 2019-07-31 | 2020-02-07 | 安徽环境科技集团股份有限公司 | Novel advanced sewage treatment process based on enhanced nitrogen and phosphorus removal |
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