CN104071902B - Method for treating household wastewater - Google Patents
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- CN104071902B CN104071902B CN201410327435.7A CN201410327435A CN104071902B CN 104071902 B CN104071902 B CN 104071902B CN 201410327435 A CN201410327435 A CN 201410327435A CN 104071902 B CN104071902 B CN 104071902B
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Landscapes
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
- Biological Treatment Of Waste Water (AREA)
- Fertilizers (AREA)
Abstract
The invention belongs to the technical field of environmental protection and discloses a process for treating household wastewater. The process comprises the following steps: S1) preparing a microbial preparation; S2) initially removing impurities and settling; S3) carrying out deep sewage purification; and S4) preparing an organic bacterial fertilizer. The technology of the invention adopting a compound microbial preparation is environmentally friendly and free from pollution, and the organic bacterial fertilizer is prepared by using waste microorganisms. The whole process is free from extra pollutants and wastes are turned into wealth.
Description
Technical field
The invention belongs to environmental technology field, be specifically related to a kind of method processing sanitary sewage.
Background technology
Sanitary wastewater is the sewage produced in human lives's process, is one of primary pollution source of water body.Mainly ight soil and wash water.The sanitary sewage amount that city is discharged everyone every day is 150-400L, and its amount has substantial connection with standard of living.Containing large amount of organic in sanitary sewage, as Mierocrystalline cellulose, starch, carbohydrate and fat protein etc.; Also often containing pathogenic bacteria, virus and parasitic ovum; The muriate of inorganic salts, vitriol, phosphoric acid salt, supercarbonate and sodium, potassium, calcium, magnesium etc.Total feature is nitrogenous, sulfur-bearing and phosphorous height, and post-processed is more difficult.People should water conservation. and China's actual conditions are more special, and water resources occupancy volume per person is few, and spatial distribution is uneven.Along with Chinese Urbanization's, industrialized acceleration, the demand gap of water resources also increases day by day.In this context, sewage treatment industry becomes new industry, at present and tap water is produced, supplied water, draining, Treated sewage reusing industry are in status of equal importance.
Although municipal aspect drops into a large amount of funds to administer sewage, prior art also has many methods effectively can remove ammonia, as physical method has reverse osmosis, distillation, soil irrigation; Chemical method has ion exchange method, ammonia aeration, chemical precipitation method, breakpoint chlorination, electrodialysis, electrochemical treatment, catalytic pyrolysis; Biological method has nitrated and algal culture, but physical method treatment effect is not good, than chemical method, biological method process waste water has the following advantages: 1) often kind of chemical article is all the product that specific aim is very strong, just likely lost efficacy when running into other chemical substances, and the removal of biotechnological formulation to pollutent has spectrum; 2) chemical products can temporarily eliminate some objectionable impurities and mask malodors, but can not stop the generation of objectionable impurities; 3), after using chemical products, have residual in water body, may secondary pollution be caused.Natural microbial contained by biotechnological formulation, not containing pathogenic bacterium and pathogenic agent, these microorganisms are under the katalysis of enzyme, with the organic nutrient substance in sewage for food, after sewage is purified, these microbes reduce gradually with the reduction of pollutent, until wither away; 4) nontoxic, non-corrosiveness, easy to use, substantially do not need interpolation equipment or engineering, save fund input.But microbial process is disposed of sewage and is easily caused microorganism to the secondary pollution of water body, and how to process microorganism is also the technical issues that need to address.In field of Environment Protection, how sanitary wastewater is purified, and reach emission standard and recycling is the technical issues that need to address.
Summary of the invention
In order to overcome the deficiencies in the prior art, the invention provides a kind of technique processing sanitary sewage.Present invention process technology have employed complex microorganism preparations, environment friendly and pollution-free, and the organic fungi-manure that utilized waste microbial to prepare, whole technological process produces without additional contaminants, achieves and turns waste into wealth.
The present invention adopts following technical scheme to realize:
Process a method for sanitary sewage, it comprises the steps:
Prepare microbial preparation: mixed bacteria liquid, kaolin and the wheat bran weight ratio according to 2:1:1 mixed, stir, cryodrying at then putting 4 DEG C, after dry, water content control is 5%, to obtain final product; Described mixed bacteria liquid is mixed by the raw material bacterium of following parts by volume: subtilis 8-10 part, colloid bacillus cereus 6-7 part, aspergillus niger 5-6 part, rhodococcus 3 parts, thiobacillus denitrificans 2, bacillus cereus 2 parts and Sphingol single-cell 1 part; The concentration of above-mentioned raw materials bacterium all controls in 3-5 × 10
7individual/ml.
Preliminary impurity-removing precipitating: sanitary sewage, successively by grid and mud, reclaims solid matter, can be used as ferment preparation of sludge gas preparation; Then sewage enters settling tank, and leave standstill 12 hours, wherein, the bottom filling of settling tank is the river sand of 100cm thickness, and the particle diameter of river sand is 1mm, can tentatively adsorb some flocculated impurities and precipitate;
Advanced sewage purification: be drained into treating pond through settling tank oettIed sewage, then pH is regulated to be 7-8, add microbial preparation 10 grams by every cubic metre of liquid at every turn, add 1 every day, after adding three days continuously, leave standstill one week again, liquid is filtered by plate filter, finally discharges, plate filter filtered and recycled microorganism and tunning thereof, obtain mixture A, for the preparation of bacterial manure;
Prepared by organic fungi-manure: dried by maize straw, be then ground into corn stalk powder with pulverizer, add in fermentor tank, then add humic acids, the peat composed of rotten mosses, wilkinite and water, after the speed of 1000 revs/min stirs 15 minutes, leaves standstill 7 days, obtained organic; Organic matter is mixed according to 10:1 with mixture A, 10 DEG C of dryings, low temperature granulations and get final product; Wherein, the weight ratio of corn stalk powder, humic acids, the peat composed of rotten mosses, wilkinite and water is 3:1:1:1:4; Corn stalk powder, humic acids, the peat composed of rotten mosses and bentonitic particle diameter are more than 100 orders.
Bacterial classification of the present invention belongs to conventional bacterial strain, all can buy from commercial sources such as CGMCC, CCTCC and American Type Culture collection warehousings (ATCC) and obtain.The enlarged culturing of each bacterial classification of the present invention is the cellar culture mode of this area, is not innovative point of the present invention, does not describe in detail herein.
The beneficial effect that the present invention obtains mainly comprises:
Treatment process simple possible of the present invention, input cost is low; While process sanitary sewage of the present invention, prepare organic fungi-manure, avoided a large amount of bacterium and tunning and be discharged in water body and cause secondary pollution, kill two birds with one stone, turn waste into wealth, greatly provide cost savings; Mainly have employed microbial process in the Technology of process sanitary sewage of the present invention, wherein reasonable compatibility between each bacterial classification, symbiosis is coordinated, mutually not antagonism, and its preparation method is easy, easy to implement the method, and it is easy and simple to handle, is beneficial to suitability for industrialized production; The present invention adopts the raw material associating waste microbial such as agricultural wastes to prepare organic fungi-manure, turns waste into wealth, greatly provides cost savings; Organic fungi-manure prepared by the present invention can reach disease-resistant, increases production, improve the effects such as fruit quality, and environment friendly and pollution-free.
Embodiment
By adopting the mode of specific embodiment, the present invention is further elaborated below, but it should not be construed the restriction to core initiative spirit of the present invention.
Embodiment 1
Process a technique for sanitary sewage, it comprises the steps:
Prepare microbial preparation: mixed bacteria liquid, kaolin and the wheat bran weight ratio according to 2:1:1 mixed, stir, cryodrying at then putting 4 DEG C, after dry, water content control is 5%, to obtain final product; Described mixed bacteria liquid is mixed by the raw material bacterium of following parts by volume: subtilis 8 parts, colloid bacillus cereus 6 parts, aspergillus niger 5 parts, rhodococcus 3 parts, thiobacillus denitrificans 2, bacillus cereus 2 parts and Sphingol single-cell 1 part; The concentration of above-mentioned raw materials bacterium all controls 5 × 10
7individual/ml.
Preliminary impurity-removing precipitating: sanitary sewage, successively by grid and mud, reclaims solid matter, can be used as ferment preparation of sludge gas preparation; Then sewage enters settling tank, and leave standstill 12 hours, wherein, the bottom filling of settling tank is the river sand of 100cm thickness, and the particle diameter of river sand is 1mm, can tentatively adsorb some flocculated impurities and precipitate;
Advanced sewage purification: be drained into treating pond through settling tank oettIed sewage, then pH is regulated to be 7-8, add microbial preparation 10 grams by every cubic metre of liquid at every turn, add 1 every day, after adding three days continuously, leave standstill one week again, liquid is filtered by plate filter, finally discharges, plate filter filtered and recycled microorganism and tunning thereof, obtain mixture A, for the preparation of organic fungi-manure;
Prepared by organic fungi-manure: dried by maize straw, be then ground into corn stalk powder with pulverizer, add in fermentor tank, then add humic acids, the peat composed of rotten mosses, wilkinite and water, after the speed of 1000 revs/min stirs 15 minutes, leaves standstill 7 days, obtained organic; Organic matter is mixed according to the weight ratio of 10:1 with mixture A, 10 DEG C of dryings, low temperature granulations and get final product; Wherein, the weight ratio of corn stalk powder, humic acids, the peat composed of rotten mosses, wilkinite and water is 3:1:1:1:4; Corn stalk powder, humic acids, the peat composed of rotten mosses and bentonitic particle diameter are 120 orders.
Embodiment 2
Process a technique for sanitary sewage, it comprises the steps:
Prepare microbial preparation: mixed bacteria liquid, kaolin and the wheat bran weight ratio according to 2:1:1 mixed, stir, cryodrying at then putting 4 DEG C, after dry, water content control is 5%, to obtain final product; Described mixed bacteria liquid is mixed by the raw material bacterium of following parts by volume: subtilis 10 parts, colloid bacillus cereus 7 parts, aspergillus niger 6 parts, rhodococcus 3 parts, thiobacillus denitrificans 2, bacillus cereus 2 parts and Sphingol single-cell 1 part; The concentration of above-mentioned raw materials bacterium all controls 3 × 10
7individual/ml.
Preliminary impurity-removing precipitating: sanitary sewage, successively by grid and mud, reclaims solid matter, can be used as ferment preparation of sludge gas preparation; Then sewage enters settling tank, and leave standstill 12 hours, wherein, the bottom filling of settling tank is the river sand of 100cm thickness, and the particle diameter of river sand is 1mm, can tentatively adsorb some flocculated impurities and precipitate;
Advanced sewage purification: be drained into treating pond through settling tank oettIed sewage, then pH is regulated to be 7-8, add microbial preparation 10 grams by every cubic metre of liquid at every turn, add 1 every day, after adding three days continuously, leave standstill one week again, liquid is filtered by plate filter, finally discharges, plate filter filtered and recycled microorganism and tunning thereof, obtain mixture A, for the preparation of organic fungi-manure;
Prepared by organic fungi-manure: dried by maize straw, be then ground into corn stalk powder with pulverizer, add in fermentor tank, then add humic acids, the peat composed of rotten mosses, wilkinite and water, after the speed of 1000 revs/min stirs 15 minutes, leaves standstill 7 days, obtained organic; Organic matter is mixed according to 10:1 weight ratio with mixture A, 10 DEG C of dryings, low temperature granulations and get final product; Wherein, the weight ratio of corn stalk powder, humic acids, the peat composed of rotten mosses, wilkinite and water is 3:1:1:1:4; Corn stalk powder, humic acids, the peat composed of rotten mosses and bentonitic particle diameter are 200 orders.
Embodiment 3
With certain community life sewage of municipal administration for example, detect the wastewater treatment efficiency of embodiment 1, each leading indicator all reaches desirable emission standard, and the Testing index of sewage is in table 1:
Table 1
| Project name | Pollutant load (mg/L) before process | Process after stain thing content (mg/L) |
| NH3-N | 312 | 1.4 |
| CODcr | 3600 | 35 |
| S | 57 | 1.9 |
| P | 38 | 0.7 |
Conclusion: through treatment process of the present invention, the content of each pollutant in sewage reduces greatly, meets emission standard completely, avoids environmental pollution.
Embodiment 4
The manure trial of organic fungi-manure prepared by the present invention:
Organic fungi-manure prepared by the embodiment of the present invention 2 is on the impact of Yield of Strawberry and quality.Test kind is Feng Xiang.Test group uses this product 100kg/ mu, and control group uses commercially available organic fertilizer (Buddha's warrior attendant biological production) 100kg/ mu, all adopts conventional cultivation.Result is as shown in table 2, and compared with commercially available organic fertilizer, the fertilizer of the embodiment of the present invention 2 can improve strawberry sugar degree and vitamin contents, improves output.
Table 2
The specific embodiment of the present invention is described although above-mentioned in conjunction with the embodiments; but not limiting the scope of the invention; one of ordinary skill in the art should be understood that; on the basis of technical scheme of the present invention, those skilled in the art do not need to pay various amendment or distortion that creative work can make still within protection scope of the present invention.
Claims (2)
1. process a technique for sanitary sewage, it is characterized in that, described technique comprises the steps:
Step 1) prepares microbial preparation: mixed bacteria liquid, kaolin and the wheat bran weight ratio according to 2:1:1 mixed, stir, cryodrying at then putting 4 DEG C, and after dry, water content control is 5%, to obtain final product; Described mixed bacteria liquid is mixed by the raw material bacterium of following parts by volume: subtilis 8-10 part, colloid bacillus cereus 6-7 part, aspergillus niger 5-6 part, rhodococcus 3 parts, thiobacillus denitrificans 2 parts, bacillus cereus 2 parts and Sphingol single-cell 1 part; The concentration of above-mentioned raw materials bacterium all controls in (3-5) × 10
7individual/ml;
Step 2) preliminary impurity-removing precipitating: sanitary sewage, successively by grid and mud, reclaims solid matter, as ferment preparation of sludge gas; Then sewage enters settling tank, and leave standstill 12 hours, the bottom filling of described settling tank is the river sand of 100cm thickness, and the particle diameter of river sand is 1mm;
Step 3) advanced sewage purification: be drained into treating pond through settling tank oettIed sewage, then pH is regulated to be 7-8, add microbial preparation 10 grams by every cubic metre of liquid at every turn, add 1 every day, after adding three days continuously, leave standstill one week again, liquid is filtered by plate filter, finally discharges, plate filter filtered and recycled microorganism and tunning thereof, obtain mixture A, for the preparation of organic fungi-manure;
Prepared by step 4) organic fungi-manure: dried by maize straw, be then ground into corn stalk powder with pulverizer, add in fermentor tank, then humic acids, the peat composed of rotten mosses, wilkinite and water is added, after the speed of 1000 revs/min stirs 15 minutes, leave standstill 7 days, obtained organic; Organic matter is mixed according to the weight ratio of 10:1 with the mixture A of step 3), 10 DEG C of dryings, low temperature granulation and get final product; Wherein, the weight ratio of corn stalk powder, humic acids, the peat composed of rotten mosses, wilkinite and water is 3:1:1:1:4.
2. technique as claimed in claim 1, it is characterized in that, in described step 4), corn stalk powder, humic acids, the peat composed of rotten mosses and bentonitic particle diameter are more than 100 orders.
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| CN108212109A (en) * | 2018-01-31 | 2018-06-29 | 黑龙江省福林环保科技有限公司 | Greasy dirt collects the application of adsorbent and its application method and its recovery product |
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| CN107140795B (en) * | 2017-07-12 | 2022-02-15 | 国网山东省电力公司临沂供电公司 | An environmental protection process for treating domestic wastewater from power plants |
| CN107164289A (en) * | 2017-07-18 | 2017-09-15 | 陈留成 | A kind of microorganism formulation of efficient degradation deodorization and preparation method thereof |
| CN110921759A (en) * | 2019-12-13 | 2020-03-27 | 西安润川环保科技有限公司 | Sewage impurity removal material and preparation method thereof |
| CN114402911B (en) * | 2022-02-14 | 2023-12-05 | 涂锡斌 | A comprehensive utilization method of edible fungus bran |
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| KR101240768B1 (en) * | 2009-10-30 | 2013-03-07 | 배경록 | The Use of Active Microbial Pellets using the Fermentation Broth made of Effective Micro-organisms and Native Micro-organisms |
| JP2012012278A (en) * | 2010-06-29 | 2012-01-19 | Shinso:Kk | Method for producing fertilizer, animal feed, or red clay outflow preventing agent |
| CN102649603A (en) * | 2011-02-24 | 2012-08-29 | 上海三智生物科技有限公司 | High-activity and high-efficiency solid biological substrate-improving granule |
| CN103382057B (en) * | 2013-07-28 | 2014-06-25 | 华盛江泉集团有限公司 | Method for treating cultivation wastewater |
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| CN108212109A (en) * | 2018-01-31 | 2018-06-29 | 黑龙江省福林环保科技有限公司 | Greasy dirt collects the application of adsorbent and its application method and its recovery product |
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Effective date of registration: 20170413 Address after: 300000 District, Tianjin City, north gate of the National Independent Innovation Demonstration Zone, high camp road, No. 8, A District, 506-11 Patentee after: SOUTH-VENTURE (TIANJIN) TECHNOLOGY DEVELOPMENT Co.,Ltd. Address before: 276000 Linyi Province, Lanshan District, Shandong, silver sparrow Road, room 52, No. 2406 Patentee before: Yang Qingya |
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Denomination of invention: A method for treating domestic sewage Granted publication date: 20150617 Pledgee: Bohai Bank Co.,Ltd. Tianjin Bank Pledgor: SOUTH-VENTURE (TIANJIN) TECHNOLOGY DEVELOPMENT Co.,Ltd. Registration number: Y2024120000036 |
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Correction item: Pledgee Correct: Bohai Bank Co., Ltd. Tianjin Branch False: Bohai Bank Co., Ltd. Tianjin Bank Number: 20-02 Volume: 40 |