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Rural household domestic sewage treatment device and sewage treatment method

A domestic sewage and treatment device technology, applied in biological water/sewage treatment, water/sludge/sewage treatment, sustainable biological treatment, etc., can solve problems such as high cost, inconvenient use and maintenance, and poor treatment effect, and achieve Low cost, cost saving, and the effect of reducing clogging

Active Publication Date: 2020-10-13
CHENGDU INST OF BIOLOGY CHINESE ACAD OF S
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the existing technology, the installation of domestic sewage treatment devices for rural areas is either a traditional biogas fermentation mode with simple functions and poor treatment effect; or an industrialized water purification equipment with high cost and inconvenient use and maintenance

Method used

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  • Rural household domestic sewage treatment device and sewage treatment method
  • Rural household domestic sewage treatment device and sewage treatment method
  • Rural household domestic sewage treatment device and sewage treatment method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0048] Set forth below the embodiment of the present invention, comprise the steps:

[0049] a. Sewage flows into the treatment device: the sewage from the septic tank 1 or the sewer pipe filters solid waste and then flows into the biological contact oxidation tank. According to the natural sewage production situation, natural or continuous water intake is acceptable. The intelligent controller 24 controls the water inlet pipe to pour The flow regulating valve 4 on the 2, when there is a lot of sewage, the excess sewage is temporarily stored in the septic tank 1 or a specially set buffer pool, and the influent flow is controlled at 200L-500L / d.

[0050] b. Bio-contact oxidation tank 5 hangs film to remove most of COD and part of ammonia nitrogen: elastic combined packing is set in biological contact oxidation tank 5, and continuous aeration is used for aeration: air flow meter detects the gas in the pipeline in real time Flow rate, the intelligent controller 24 compares the ga...

Embodiment 1

[0063] Configure each medium

[0064] Enrichment medium: 3g of beef extract, 10g of peptone, 5g of NaCl, 20g of agar, pH=7.2-7.4, 1L of water, sterilized at 121°C for 20min.

[0065] Bacterial medium: 5g of yeast extract, 10g of peptone, 0.5g of NaCl, 20g of agar, 1L of tap water, pH=7.0, sterilized at 121°C for 20min.

[0066] YPD medium: peptone 5g, glucose 10g, malt extract 3g, yeast extract 3g, agar 20g, water 1L, add 30μg / mL streptomycin or 100mg / L chloramphenicol, sterilize at 112°C for 30min;

[0067] Gaoshi No. 1 medium: 20g soluble starch, KNO 3 1g, K 2 HPO 4 0.5g, MgSO 4 ·7H 2 O0.5g, NaCl0.5g, FeSO 4 ·7H 2 O 0.01g, agar 20g, pH=7.4-7.6, sterilized at 121°C for 20min.

[0068] PDA medium: 200g potato, 20g glucose, 20g agar, 1L tap water, natural pH.

[0069] Primary screening medium: glucose 10g, K 2 HPO 4 5g, KH 2 PO 4 2g, NaCl 0.1g, MgSO 4 ·7H 2O 0.2g, urea 0.5g, yeast extract 0.5g, pH=7.2-7.5, water 1L, sterilized at 115°C for 20min.

[0070] Re...

Embodiment 2

[0072] Enrichment and Purification

[0073] Enrichment: Weigh 10g of the soil sample and add it to the sterile saline solution containing glass beads, shake well for half an hour, fully break up the soil sample, let it rest for clarification, absorb the supernatant and add it to the 90mL enrichment culture according to 10%. Base and 10ml of water samples in the culture medium. The enrichment solution was incubated at 30° C. and a shaker at 160 rpm for 1 day. Then the enrichment solution was serially diluted, that is, the supernatant was fractionally diluted to 10 -1 、10 -2 、10 -3 、10 -4 、10 -5 、10 -6 、10 -7 、10 -8 . Under aseptic operation, use a pipette to absorb 0.1mL of the above sample suspension, and spread it on YPD medium, Gao's No. 1 medium and PDA medium with a coating rod, and spread the dilution evenly . The plates were cultured upside down, and cultured at 30°C for 24-48 hours.

[0074] Purification: The enriched strains with different colony morphology...

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Abstract

The invention relates to the technical field of domestic sewage treatment, in particular to a domestic sewage treatment device for rural households. The technical solution adopted is: a rural household domestic sewage treatment device, including a biological contact oxidation tank, the biological contact oxidation tank and the first water collection tank are sequentially connected through an overflow weir, and the first water collection tank is connected through the first water collection tank. The porous plate communicates with the artificial wetland treatment pool, and the artificial wetland treatment pool communicates with the second water collection tank through the second porous plate, and the second water collection tank communicates with the outside world through the sedimentation tank; the biological contact oxidation pool is connected with the artificial Aeration systems are installed in the wetland treatment pools. The invention is suitable for domestic sewage treatment of single-family residents or distributed residents, and has low cost, convenient management and good treatment effect.

Description

technical field [0001] The invention relates to the technical field of domestic sewage treatment, in particular to a domestic sewage treatment device for rural households. Background technique [0002] According to statistics, the total annual wastewater discharge in my country is about 60 billion m 3 , of which urban domestic sewage is 20 billion m 3 , the rural sewage is 20 billion m 3 According to the population, the average daily domestic sewage discharge per capita in cities is 52.63L, and the daily domestic sewage discharge per capita in rural areas is 21.74L, which is about 2 / 5 of that in cities [1] ([1] Wang Junqi, Wang Youqiu, etc. Discharge and treatment status of domestic garbage and domestic sewage in townships. China Sanitary Engineering. 2004.3 (4)). In the vast rural areas of our country, due to the many and scattered sources of domestic sewage, the total amount of sewage is small, the confluence of rain and sewage, and the low concentration of pollutants, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/02C02F3/32C02F3/34C02F3/30C02F101/16C02F101/30
CPCC02F3/02C02F3/301C02F3/32C02F3/34C02F2101/16C02F2101/30Y02W10/10
Inventor 谢翼飞兰书焕李旭东谭周亮高俊梁雅洁
Owner CHENGDU INST OF BIOLOGY CHINESE ACAD OF S
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