CN105129978A - Dining wastewater treatment method - Google Patents
Dining wastewater treatment method Download PDFInfo
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- CN105129978A CN105129978A CN201410251430.0A CN201410251430A CN105129978A CN 105129978 A CN105129978 A CN 105129978A CN 201410251430 A CN201410251430 A CN 201410251430A CN 105129978 A CN105129978 A CN 105129978A
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Abstract
The present invention discloses a dining wastewater treatment method comprising the following steps: 1) food residue is filtered to remove solids to obtain a dining wastewater; 2) dining wastewater is introduced into an anaerobic reactor for anaerobic fermentation in the anaerobic reactor; 3) exhaust produced by the anaerobic fermentation is discharged into the atmosphere, and the anaerobic fermentation liquid up to the standards is discharged. The dining wastewater treatment method, compared with the method in the prior art, has the following advantages: solids and liquids are separately treated, the problem of environmental pollution is solved, and resource recovery purpose can be achieved. The system has small and modular advantages, and can be widely used in dining places.
Description
Technical field
The invention belongs to field of environment engineering, be specifically related to a kind for the treatment of process of sewage from catering business.
Background technology
The definition of food and drink waste water has several saying: one refers to the residue that food and drink waste water and catering trade and unit dining room produce and waste material, also have a kind of saying to refer to the oil-containing swill of the catering industry discharge such as restaurant, hotel, swill comprises washing water of rice, thin rice gruel, leftover, fishbone, bone slag, melon dish skin etc.According to statistics, only more than 100 the large-and-medium size cities catering trade in the whole nation, the wastewater flow rate that every day produces, just close to 3,000,000 t, will cause very large pollution as processed not in time.
In food and drink waste water, main component is leftover and water, with organism such as starch based, foodstuff fibre class, animal tallow classes for main component, has that nutritive ingredient is high, water ratio is high, grease and a feature such as high, the perishable fermentation of salt content is smelly.If it is collected, transports and is disposed together with domestic refuse, city appearance environment and resident living will be had a strong impact on, also can affect the ultimate disposal effect of domestic refuse.In addition, containing a large amount of organism in changing food waste, its nutrition is not only comprehensive but also enrich, as long as by suitable treatment technology, food and drink waste water just can be made to obtain " resource utilization " fully and utilize.
Show that: BOD is 300-500mg/L according to ground food and drink waste water detected results such as Guangzhou, China developed regions, Shanghai, COD is about 1000mg/L, grease is 150-421mg/L, ammonia nitrogen mean value 6-50mg/L, SS is 300-568mg/L, these indexs are all higher than the emission concentration (see table 1) of regulation in country " integrated wastewater discharge standard " (GB8978-1996), wherein grease, BOD, COD, SS will far away higher than grade III Standard, and food and drink waste water, after process reaches grade III Standard, just can enter the urban pipe network of sewage work.
Existing food and drink residue treatment equipment is generally that all residues are directly inputted anaerobic reaction-pot, directly water drain is entered after anaerobism, there are two shortcomings in this kind of equipment: the waste gas 1) produced through anaerobic treatment directly passes into water drain, easily being formed in water drain can explosive gas, there is very large potential safety hazard.2) in food and drink residue solid together with liquid by anaerobism, not only increases the amount of anaerobism, cause processing efficiency low, and a large amount of organic matter is wasted.
Summary of the invention
The object of the invention is to provide a kind for the treatment of process of sewage from catering business, solves existing installation solid-liquid regardless of causing organic waste and off gas treatment problem improperly.
The integrated conduct method of food and drink residue, first food and drink residue is carried out solid-liquid separation, carry out separately process to the solid after separation and liquid, the sewage from catering business after separation carries out anaerobically fermenting, fully decomposes under the effect of anaerobion, reduce the grease in raffinate, BOD, COD, SS content, the waste gas produced enters air by air outlet, prevents waste gas from entering water drain and produces potential safety hazard.Solid is the mixture of the resourcebility of higher fatty acid, high protein, high sugar, by carrying out solid state fermentation after sterilizing, generating animal-feed, realizing resource utilization.
Particularly, the treatment process of sewage from catering business, comprises the steps:
1) food and drink residue is removed solid after filtration and is obtained sewage from catering business;
2) sewage from catering business is passed into anaerobic reactor, in anaerobic reactor, carry out anaerobically fermenting;
3) waste gas that anaerobically fermenting produces enters air, the anaerobic fermented liquid discharge after up to standard.
Wherein, the temperature of anaerobically fermenting is room temperature, and fermentation time is 3-5 days.
The treatment system of sewage from catering business, comprise solid-liquid separation sieve, anaerobic reactor, anaerobic reactor is made up of Stainless Steel Shell and the filling block be arranged in Stainless Steel Shell, water-in is provided with bottom described Stainless Steel Shell, top is provided with water outlet and air outlet, the liquid outlet of described solid-liquid separation sieve connects the water-in of anaerobic reactor, and described filling block is made up of porous ceramics.
Further, described air outlet has one U-shaped section, forms water seal.
Food and drink residue is after solid-liquid separation sieve, and raffinate enters in anaerobic reactor, fully decomposes under the effect of anaerobion, reduce the grease in raffinate, BOD, COD, SS content, the waste gas of generation enters air by air outlet, prevents waste gas from entering water drain and produces potential safety hazard.
The method of food and drink residue solid state fermentation, comprises the steps:
1) food and drink residue is filtered, obtain food and drink residue solid;
2) food and drink residue solid is carried out high-temperature sterilization;
3) proceed to fermentor tank through the food and drink residue solid of high-temperature sterilization and carry out solid state fermentation;
4) product through solid state fermentation is proceeded to storage tank to pack.
The technique of solid state fermentation is: inoculation subtilis (Bacillussubtilis) CICC20123, yeast (Saccaeomrcescerevisiae) CICC32941, bifidus longum bb (Bifidobacteriumlongum) CICC6191 bacterium liquid, control temperature 25-30 DEG C is carried out anaerobically fermenting, fermentation time 3-5 days.
Food and drink residue fermentation system is made up of sterilization tank, fermentor tank, storage tank, described sterilization tank is Dual-layer structure, lower floor is heating chamber, upper strata is sterilising chamber, heating unit is provided with bottom heating chamber, sterilising chamber is provided with residue entrance and solid discharge, the solid discharge of described sterilising chamber connects the opening for feed of fermentor tank, and the discharge port of fermentor tank connects storage tank.
Described fermentor tank is made up of tank body and the chuck be arranged on outside tank body.
Described opening for feed is arranged on the top of tank body, and discharge port is arranged on the bottom of tank body.
Residue carries out, after sterilizing, entering fermentor tank through sterilization tank, by access probiotic bacterium in fermentor tank, residue is converted into the fermented feed of high microorganism albumen, then proceeds in storage tank to be packaged, achieve the innoxious of residue and resource utilization.
The present invention compared with prior art tool has the following advantages:
1, solid-liquid separately process, both solved problem of environmental pollution, can reach again the object of resource utilization.
2, system of the present invention has miniaturization, modular advantage, can widely use in food and drink place.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
In figure, Reference numeral is: 1-solid-liquid separation sieve, 2-sterilization tank, 21-heating unit, 3-fermentor tank, 4-storage tank, 5-anaerobic reactor, 51-air outlet, 52-water outlet.
Embodiment
The integrated conduct method of food and drink residue, first food and drink residue is carried out solid-liquid separation, carry out separately process to the solid after separation and liquid, the sewage from catering business after separation carries out anaerobically fermenting, fully decomposes under the effect of anaerobion, reduce the grease in raffinate, BOD, COD, SS content, the waste gas produced enters air by air outlet, prevents waste gas from entering water drain and produces potential safety hazard.Solid is the mixture of the resourcebility of higher fatty acid, high protein, high sugar, by carrying out solid state fermentation after sterilizing, generating animal-feed, realizing resource utilization.
Particularly, the treatment process of sewage from catering business, comprises the steps:
1) food and drink residue is removed solid after filtration and is obtained sewage from catering business;
2) sewage from catering business is passed into anaerobic reactor, in anaerobic reactor, carry out anaerobically fermenting;
3) waste gas that anaerobically fermenting produces enters air, the anaerobic fermented liquid discharge after up to standard.
Wherein, the temperature of anaerobically fermenting is room temperature, and fermentation time is 3-5 days.
The treatment system of sewage from catering business, comprise solid-liquid separation sieve, anaerobic reactor, anaerobic reactor is made up of Stainless Steel Shell and the filling block be arranged in Stainless Steel Shell, water-in is provided with bottom described Stainless Steel Shell, top is provided with water outlet and air outlet, the liquid outlet of described solid-liquid separation sieve connects the water-in of anaerobic reactor, and described filling block is made up of porous ceramics.
Air outlet has one U-shaped section, forms water seal, both can ensure that the gas produced can be discharged, and can prevent again air from entering anaerobic reactor, and ensure anaerobic environment.
Food and drink residue is after solid-liquid separation sieve, and raffinate enters in anaerobic reactor, fully decomposes under the effect of anaerobion, reduce the grease in raffinate, BOD, COD, SS content, the waste gas of generation enters air by air outlet, prevents waste gas from entering water drain and produces potential safety hazard.
The method of food and drink residue solid state fermentation, comprises the steps:
1) food and drink residue is filtered, obtain food and drink residue solid;
2) food and drink residue solid is carried out high-temperature sterilization;
3) proceed to fermentor tank through the food and drink residue solid of high-temperature sterilization and carry out solid state fermentation;
4) product through solid state fermentation is proceeded to storage tank to pack.
The technique of solid state fermentation is: inoculation subtilis (Bacillussubtilis) CICC20123, yeast (Saccaeomrcescerevisiae) CICC32941, bifidus longum bb (Bifidobacteriumlongum) CICC6191 bacterium liquid, control temperature 25-30 DEG C is carried out anaerobically fermenting, fermentation time 3-5 days.
Food and drink residue fermentation system is made up of sterilization tank, fermentor tank, storage tank, described sterilization tank is Dual-layer structure, lower floor is heating chamber, upper strata is sterilising chamber, heating unit is provided with bottom heating chamber, sterilising chamber is provided with residue entrance and solid discharge, the solid discharge of described sterilising chamber connects the opening for feed of fermentor tank, and the discharge port of fermentor tank connects storage tank.
Described fermentor tank is made up of tank body and the chuck be arranged on outside tank body.
Described opening for feed is arranged on the top of tank body, and discharge port is arranged on the bottom of tank body.
Residue carries out, after sterilizing, entering fermentor tank through sterilization tank, by access probiotic bacterium in fermentor tank, residue is converted into the fermented feed of high microorganism albumen, then proceeds in storage tank to be packaged, achieve the innoxious of residue and resource utilization.
The above embodiment only have expressed the embodiment of the application, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the application's protection domain.It should be pointed out that for the person of ordinary skill of the art, under the prerequisite not departing from technical scheme design, can also make some distortion and improvement, these all belong to the protection domain of the application.
Claims (4)
1. the treatment process of sewage from catering business, is characterized in that, comprises the steps:
1) food and drink residue is removed solid after filtration and is obtained sewage from catering business;
2) sewage from catering business is passed into anaerobic reactor, in anaerobic reactor, carry out anaerobically fermenting;
3) waste gas that anaerobically fermenting produces enters air, the anaerobic fermented liquid discharge after up to standard.
2. the treatment process of sewage from catering business according to claim 1, is characterized in that, the temperature of anaerobically fermenting is room temperature, and fermentation time is 3-5 days.
3. the treatment process of sewage from catering business according to claim 1, it is characterized in that, described anaerobic reactor is made up of Stainless Steel Shell and the filling block be arranged in Stainless Steel Shell, water-in is provided with bottom described Stainless Steel Shell, top is provided with water outlet and air outlet, the liquid outlet of described solid-liquid separation sieve connects the water-in of anaerobic reactor, and described filling block is made up of porous ceramics.
4. the treatment process of sewage from catering business according to claim 3, is characterized in that, described air outlet has one for the formation of U-shaped section of water seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410251430.0A CN105129978A (en) | 2014-06-09 | 2014-06-09 | Dining wastewater treatment method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410251430.0A CN105129978A (en) | 2014-06-09 | 2014-06-09 | Dining wastewater treatment method |
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| CN105129978A true CN105129978A (en) | 2015-12-09 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1133209A (en) * | 1995-07-28 | 1996-10-16 | 王天光 | Treating process for waste undecanted wine of alcohol |
| CN101215048A (en) * | 2007-12-28 | 2008-07-09 | 青海洁神食品垃圾处理产业有限公司 | Highly effective anaerobic reaction water treatment method and device for kitchen garbage |
| KR101152210B1 (en) * | 2010-05-25 | 2012-07-11 | 권혁성 | Organic Waste Disposal System with Improved Methane Yield and Method |
| JP5151643B2 (en) * | 2008-04-16 | 2013-02-27 | 株式会社Ｉｈｉ | Starch manufacturing wastewater treatment facility and method |
-
2014
- 2014-06-09 CN CN201410251430.0A patent/CN105129978A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1133209A (en) * | 1995-07-28 | 1996-10-16 | 王天光 | Treating process for waste undecanted wine of alcohol |
| CN101215048A (en) * | 2007-12-28 | 2008-07-09 | 青海洁神食品垃圾处理产业有限公司 | Highly effective anaerobic reaction water treatment method and device for kitchen garbage |
| JP5151643B2 (en) * | 2008-04-16 | 2013-02-27 | 株式会社Ｉｈｉ | Starch manufacturing wastewater treatment facility and method |
| KR101152210B1 (en) * | 2010-05-25 | 2012-07-11 | 권혁성 | Organic Waste Disposal System with Improved Methane Yield and Method |
Non-Patent Citations (1)
| Title |
|---|
| 马岛刚等: "将装有多孔陶瓷的厌氧处理装置用于处理食品工厂高浓度废水的研究", 《环境科学动态》 * |
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Application publication date: 20151209 |
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