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CN-122010321-A - Process for treating feces by utilizing microorganisms

CN122010321ACN 122010321 ACN122010321 ACN 122010321ACN-122010321-A

Abstract

The invention discloses a process for treating fecal sewage by utilizing microorganisms, and relates to the technical field of fecal sewage treatment. The sewage from the toilet is discharged to a pretreatment tank, the nano oxygen generator in the regulating tank carries out super oxidation reaction on organic matters in the sewage until the organic matters are completely flocculated, the sewage after the super oxidation reaction carries out solid-liquid separation through an unpowered filter device, the separated solids fall into a sludge drying tank, the separated wastewater is discharged into a first-stage treatment tank, the wastewater enters an anaerobic reactor of the first-stage treatment tank for anaerobic fermentation, and then enters an aerobic reactor of the first-stage treatment tank for aerobic fermentation. After the waste of the excrement discharged to the regulating tank from the public toilet is subjected to superoxidation flocculation, solid-liquid separation, anaerobic-aerobic alternate fermentation, multi-medium filtration and ultraviolet disinfection and sterilization treatment, the obtained purified water can be reused for flushing the toilet, the reuse of the reclaimed water is realized, the flushing water is recycled, tap water is not needed for flushing the toilet, a large amount of water resources are saved, and the zero emission of pollutants is realized.

Inventors

  • LV FANG
  • ZHANG ZIHAN

Assignees

  • 江苏欧尔润生物科技有限公司

Dates

Publication Date
20260512
Application Date
20250929

Claims (7)

  1. 1. A process for treating fecal sewage by utilizing microorganisms is characterized by comprising the following specific steps: Step 1, discharging the excrement in a toilet to a pretreatment tank, and performing super oxidation reaction on organic matters in the excrement by a nano oxygen generator in an adjusting tank until the organic matters are completely flocculated; Step 2, solid-liquid separation is carried out on the feces after the super-oxidation reaction through an unpowered filter device, the separated solids fall into a sludge drying pool, and the separated wastewater is discharged into a first-stage treatment tank; step 3, the wastewater enters an anaerobic reactor of a primary treatment tank for anaerobic fermentation, and then enters an aerobic reactor of the primary treatment tank for aerobic fermentation; step 4, the wastewater enters an anaerobic reactor of the secondary treatment tank for anaerobic fermentation, and then enters an aerobic reactor of the secondary treatment tank for aerobic fermentation; Step 5, the wastewater enters an anaerobic reactor of a three-stage treatment tank for anaerobic fermentation, then enters an aerobic reactor of the three-stage treatment tank for aerobic fermentation, and the effect of denitrification and dephosphorization is achieved after 3 rounds of anaerobic-aerobic alternate fermentation; step 6, the wastewater is further purified by a multi-medium filtering device, the separated solids fall into a sludge drying pool, purified water enters a reservoir, and the reservoir is provided with an ultraviolet lamp for ultraviolet irradiation disinfection and sterilization; And 7, enabling water in the reservoir to enter a reclaimed water pipeline of the toilet for flushing the toilet, and realizing reclaimed water recycling.
  2. 2. The process for treating fecal sewage by utilizing microorganisms according to claim 1, wherein the wastewater in the sludge drying tank in the step 2 and the step 6 can flow back to the pretreatment tank for the sewage purification treatment in the step 2-7, thereby further reducing the waste of water resources.
  3. 3. The method for treating fecal sewage by using microorganisms according to claim 1, wherein the strains in the treatment tank in the step 3-5 comprise bacillus lysines Owin-1, bacillus Owin-2 and bacillus lysines Owin-3, and the effective bacterial count ratio of bacillus lysines Owin-1, bacillus Owin-2 and bacillus lysines Owin-3 is 3:4:3.
  4. 4. A process for treating fecal sewage using a microorganism according to claim 1, wherein the Bacillus lysine Owin-1 is classified under the name of Bacillus lysine (Lysinibacillus sp.) Owin-1, the Bacillus Owin-2 is classified under the name of Bacillus sp.) Owin-2, and the Bacillus lysine Owin-3 is classified under the name of Bacillus lysine (Lysinibacillus xylanilyticus) Owin-3.
  5. 5. The process for treating fecal sewage by utilizing microorganisms according to claim 1, wherein the composite microbial inoculum comprises 100g of Na2 HPO4.7H2O, 1-5 g of MgSO 4 ·7H 2 O, 20-40 g of KH 2 PO 4 , 1-3 g of CaCl 2 ·6H 2 O, 5-10 g of NaCl, 0.1-gFeCl 3 , 10-15 g of NH 4 Cl, 40-50 g of glucose, 40-50 g of Casamino Acid, 200-300 g of skimmed milk powder, 10L of distilled water and the composite bacteria according to claim 1, wherein the total number of viable bacteria is not less than 1x10 10 cfu.
  6. 6. The composite microbial inoculum according to claim 5 wherein glucose provides a carbon source for growth and propagation of the composite microbial inoculum, skim milk powder, NH 4 Cl and Casamino Acid provide a nitrogen source for growth and propagation of the composite microbial inoculum, and other inorganic salt components are used for maintaining osmotic pressure of cells of the composite microbial inoculum, activity of intracellular enzymes and pH balance of a growth environment.
  7. 7. A process for treating fecal sewage by utilizing microorganisms according to claim 1, wherein the COD content in the sewage after treatment is less than or equal to 20mg/L, BOD5 is less than or equal to 10mg/L, the suspended matter content is less than or equal to 30mg/L, the pH value is between 6.5 and 8.5, the total nitrogen content is less than or equal to 15mg/L, the ammonia nitrogen content is less than or equal to 5mg/L, and the total phosphorus content is less than or equal to 0.5mg/L.

Description

Process for treating feces by utilizing microorganisms Technical Field The invention relates to the technical field of fecal sewage treatment, in particular to a fecal sewage treatment process by utilizing microorganisms. Background Urban public toilets become an important content of municipal construction, and the overall condition of the toilets becomes an important aspect of urban and rural gaps. The clean and sanitary public toilet environment is the basic requirement of masses, and directly reflects the urban image and civilization degree. The urban public toilet planning construction management is enhanced, and the method is an important measure for improving urban living environment. With the rapid development of town, urban population continues to increase, the number of public toilets is generally insufficient, the management level is not high, and particularly the problem of female toilet shortage is urgently solved. The green low-carbon industry is developed by comprehensively saving strategies, green consumption is advocated, and the green transformation of the development mode is accelerated. The method continuously advances the focused pollution control and fight against pollution, and aims at providing new power for the environmental protection industry. The public toilet is used as a part of urban infrastructure, thereby not only providing convenience for urban residents and tourists, but also being an important embodiment of urban civilization. Therefore, the high-efficiency treatment of the excrement can improve the sanitary environment of the public toilet, reduce the environmental pollution and meet the life quality of people, and therefore, the process for treating the excrement by utilizing the microorganisms is provided. Disclosure of Invention (One) solving the technical problems Aiming at the defects of the prior art, the invention provides a process for treating the excrement by utilizing microorganisms, wherein the excrement discharged to a regulating tank by a public toilet is subjected to superoxidation flocculation, solid-liquid separation, anaerobic-aerobic alternate fermentation, multi-medium filtration and ultraviolet disinfection and sterilization treatment, and the obtained purified water can be reused for flushing the toilet, so that the reuse of the reclaimed water is realized, the flushing water is recycled, tap water is not needed for flushing the toilet, a large amount of water resources are saved, and meanwhile, the zero emission of pollutants is realized, and the environmental pollution is avoided. (II) technical scheme In order to achieve the above purpose, the invention is realized by the following technical scheme: A technology for treating feces by utilizing microorganisms specifically comprises the following steps: Step 1, discharging the excrement in a toilet to a pretreatment tank, and performing super oxidation reaction on organic matters in the excrement by a nano oxygen generator in an adjusting tank until the organic matters are completely flocculated; Step 2, solid-liquid separation is carried out on the feces after the super-oxidation reaction through an unpowered filter device, the separated solids fall into a sludge drying pool, and the separated wastewater is discharged into a first-stage treatment tank; step 3, the wastewater enters an anaerobic reactor of a primary treatment tank for anaerobic fermentation, and then enters an aerobic reactor of the primary treatment tank for aerobic fermentation; step 4, the wastewater enters an anaerobic reactor of the secondary treatment tank for anaerobic fermentation, and then enters an aerobic reactor of the secondary treatment tank for aerobic fermentation; Step 5, the wastewater enters an anaerobic reactor of a three-stage treatment tank for anaerobic fermentation, then enters an aerobic reactor of the three-stage treatment tank for aerobic fermentation, and the effect of denitrification and dephosphorization is achieved after 3 rounds of anaerobic-aerobic alternate fermentation; step 6, the wastewater is further purified by a multi-medium filtering device, the separated solids fall into a sludge drying pool, purified water enters a reservoir, and the reservoir is provided with an ultraviolet lamp for ultraviolet irradiation disinfection and sterilization; And 7, enabling water in the reservoir to enter a reclaimed water pipeline of the toilet for flushing the toilet, and realizing reclaimed water recycling. The technical scheme of the invention is as follows: furthermore, in the process for treating the excrement by utilizing the microorganisms, the wastewater in the sludge drying tanks in the step 2 and the step 6 can flow back to the pretreatment tank for sewage purification treatment in the step 2-7, so that the waste of water resources is further reduced. Further, in the aforementioned fecal sewage treatment process using microorganisms, the strains in the treatment tank in step 3-5 include Bacillus lys