Intelligent rural domestic sewage treatment system and method

A domestic sewage and treatment system technology, applied in the field of rural domestic sewage treatment systems, can solve the problems of low intelligence level, failure to detect equipment failures in time, frequent maintenance, etc.

Pending Publication Date: 2021-05-18
CNOOC TIANJIN CHEM RES & DESIGN INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main problems in the operation of the existing process are frequent maintenance, high management costs, and the need for professional technicians. However, the rural economic strength and technical strength are still difficult to meet the technical requirements of large-scale sewage treatment processes; in addition, the existing The sewage treatment plant still has a low level of intelligence, and it is impossible to detect faults in the operation of the equipment in time

Method used

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  • Intelligent rural domestic sewage treatment system and method
  • Intelligent rural domestic sewage treatment system and method
  • Intelligent rural domestic sewage treatment system and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] For domestic sewage in a rural area in Hebei, the residential sewage drainage pipe is connected to the sewage device manufactured by the present invention, and the water volume in the peak period is about 1m 3 / h, the concentration of COD is between 650-720mg / L, the concentration of suspended matter is between 300-480mg / L, the residence time of sewage in the reaction tank is about 1 hour, and the angle between the self-cleaning screen and the vertical direction is 30 The backwash cycle is once a day; the ratio of concentrated water to clean water in the membrane module is 4:1, the ultrasonic cleaning cycle is 2 to 3 days, and the chemical cleaning cycle is 12 to 20 days; the current intensity of the electrochemical reactor is 35A / m 2 , the polarity exchange cycle of anode and cathode is 12 hours. When the receiving terminal receives a reminder that the COD exceeds the standard of 3mg / L, the operator issues an instruction to adjust the current intensity of the electroc...

Embodiment 2

[0037] For domestic sewage in a rural area in Tianjin, the sewage drainage pipes of residents are connected to the sewage device manufactured by the present invention, and the water volume in the peak period is about 2m 3 / h, the concentration of COD is between 820-980mg / L, the concentration of suspended matter is between 360-520mg / L, the residence time of sewage in the reaction tank is about 1 hour, and the angle between the self-cleaning screen and the vertical direction is 30 The backwash frequency is once a day; the ratio of concentrated water to clean water of the membrane module is 3:1, the ultrasonic cleaning cycle is 2 to 3 days, and the chemical cleaning cycle is 15 to 20 days; the current intensity of the electrochemical reactor is 35A / m 2 , the polarity exchange cycle of anode and cathode is 8 hours. When the receiving terminal receives a reminder that the suspended solids exceed the standard by 10mg / L, the operator issues an instruction to adjust the ratio of con...

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Abstract

The invention discloses an intelligent rural domestic sewage treatment system which is characterized by comprising a crusher (1), a self-cleaning screen (2), an MBR (Membrane Bioreactor) (15), an electrochemical reactor (6), a sludge pump (9), a dehydrator (10) and a fermentation tank (11) which are sequentially connected, the MBR (15) consists of a reaction tank (3), a middle lifting pump (4) and a membrane component (5). All the devices are fixed on a chassis made of angle steel, I-shaped steel, section steel and steel plates or in a container. The intelligent rural domestic sewage treatment system is provided with an on-line detection instrument, and state data of the on-line detection instrument and the pump are transmitted to a local control cabinet (12) through a wired cable and are transmitted to a receiving terminal (14) through a wireless network (13) at the same time.

Description

technical field [0001] The invention belongs to the field of environmental engineering sewage treatment, and in particular relates to a rural domestic sewage treatment system and method. Background technique [0002] With the improvement of residents' living standards, the discharge of domestic sewage in rural areas has increased year by year. It has the characteristics of scattered pollution sources, wide coverage, and large daily variation coefficient of water volume. The main pollutants are COD (chemical oxygen demand), SS (suspended solids). , nitrogen, phosphorus, and pathogenic microorganisms. At present, most of the rural sewage in my country is directly discharged, which seriously pollutes the sewage body, soil and groundwater safety. Disorderly discharge of sewage has become the main reason for the deterioration of rural living environment. [0003] Due to the high degree of dispersion of rural households, large differences in terrain, and difficulty in laying pipe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14
CPCC02F9/00C02F3/1268C02F1/4672C02F1/001C02F2001/46161C02F3/005C02F2209/08C02F2303/04C02F2303/14C02F2303/26C02F2209/42C02F2209/03
Inventor 赵慧谢陈鑫滕厚开钱光磊任春燕雷太平李旗张程蕾周立山
Owner CNOOC TIANJIN CHEM RES & DESIGN INST
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