CN-116903165-B - Waste recycling system for rural domestic sewage

CN116903165BCN 116903165 BCN116903165 BCN 116903165BCN-116903165-B

Abstract

The invention relates to a waste recycling system for rural domestic sewage, and belongs to the technical field of environmental engineering water pollution control. The system comprises a domestic sewage regulating and accumulating tank, a micro-algae symbiotic purification unit and an aquatic ecology system unit, wherein water quality on-line monitoring systems are arranged at water outlets of the micro-algae symbiotic purification unit and the aquatic ecology system unit and are connected with a data processing terminal. The sewage entering the domestic sewage regulating and accumulating tank naturally subsides under the action of gravity to enable the water body after the domestic sewage is subjected to primary treatment to flow into the micro-algae symbiotic purification unit through the water outlet, and the water purified by the micro-algae symbiotic purification unit enters the water ecological system unit, wherein aquatic plants are planted in the water ecological system unit. The system can solve the domestic sewage problem in rural areas at present and realize the recycling of wastes.

Inventors

GAO JINGQING
FU YUANG
LI JIE
YAN SHAOFENG
SU MANLI
Liu shengshi
ZHANG ZHENG
WANG SHUAI

Assignees

郑州大学
郑州源致和环保科技有限公司
河南省生态环境技术中心

Dates

Publication Date: 20260508
Application Date: 20230524

Claims (1)

1. The waste recycling system for rural domestic sewage is characterized by comprising a domestic sewage regulating and storing tank, a micro-algae symbiotic purification unit and an aquatic ecosystem unit, wherein electric valves are arranged between the domestic sewage regulating and storing tank and the micro-algae symbiotic purification unit and between the micro-algae symbiotic purification unit and the aquatic ecosystem unit, and water outlets of the micro-algae symbiotic purification unit and the aquatic ecosystem unit are provided with a water quality on-line monitoring system which is connected with a data processing terminal; the electric valve between the domestic sewage regulating and accumulating tank and the micro-algae symbiotic purification unit is effectively controlled by the data processing terminal according to the water outlet flow value, when the content of each pollutant in the sewage in the micro-algae symbiotic purification unit reaches the standard, the water quality online detection system feeds data back to the data processing terminal, so that the electric valve between the micro-algae symbiotic purification unit and the water ecology system unit is in an open state, and the sewage can flow into the water ecology system unit; The sewage enters the domestic sewage regulation and storage tank is naturally settled under the action of gravity, so that water body after the domestic sewage is subjected to preliminary treatment flows into a micro-algae symbiotic purification unit through the water outlet, the micro-algae symbiotic purification unit consists of a reaction tank, a partition plate and a fan aeration facility, the partition plate divides the reaction tank into two parts, the fan aeration facility is arranged at the bottom of the part containing the water inlet of the micro-algae symbiotic purification unit, aeration oxygenation is carried out by adopting the fan aeration facility, microorganisms and algae are arranged in the reaction tank, the microorganisms comprise indigenous microorganisms and added composite microbial inoculants, and the composite microbial inoculants are prepared by mixing five microbial inoculants of photosynthetic bacteria, bacillus, bifidobacterium, lactobacillus and streptococcus faecalis with an OD600 value of 0.6-0.8, and the algae is one or more of chlorella, oocyst algae, naviform algae and cryptophyceae; the water purified by the micro-algae symbiotic purification unit enters an aquatic ecosystem unit, the aquatic ecosystem unit comprises a water distribution pipe and an aquatic plant planting groove, aquatic filter feeding animals are cultivated at the middle lower end of the water distribution pipe, an aquatic plant planting groove with the inner diameter of 8cm is arranged at each 15cm interval of the upper end of the water distribution pipe in a punching mode, and aquatic vegetables are planted in the aquatic plant planting groove and are provided with a sponge and a fence net; the fan aeration facility is externally connected with a solar cell panel; The aquatic vegetable is one or more of herba Oenanthes Javanicae, watercress, pedicellus et pericarpium Trapae, and water spinach; the aquatic filter feeding animal is hyriopsis cumingii, hyriopsis cumingii or hyriopsis cumingii.

Description

Waste recycling system for rural domestic sewage Technical Field The invention belongs to the technical field of environmental engineering water pollution control, and particularly relates to a waste recycling system for rural domestic sewage. Background Because of the great difference between rural domestic sewage generation and management and cities, the traditional water pollution purification process and method have a great number of problems in rural domestic sewage treatment. The pollution is treated by consuming energy in the treatment process, so that the treatment effect is greatly reduced, and most of the removed pollutants are important elements required by the growth of animals and plants. Based on the treatment needs and development requirements of rural domestic sewage, the purification system with economy, high efficiency, convenience and low carbon and resource recovery is particularly important for treating rural domestic sewage. Disclosure of Invention The invention aims to provide a waste recycling system for rural domestic sewage, which solves the problem of domestic sewage in rural areas at present and realizes recycling of waste. In order to achieve the above purpose, the invention adopts the following technical scheme: The system comprises a domestic sewage regulating and accumulating tank, a micro-algae symbiotic purifying unit and an aquatic ecosystem unit, wherein electric valves are arranged between the domestic sewage regulating and accumulating tank and the micro-algae symbiotic purifying unit and between the micro-algae symbiotic purifying unit and the aquatic ecosystem unit, water quality on-line monitoring systems are arranged at water outlets of the micro-algae symbiotic purifying unit and the aquatic ecosystem unit, the electric valves and the water quality on-line monitoring systems are connected with a data processing terminal, the electric valves between the domestic sewage regulating and accumulating tank and the micro-algae symbiotic purifying unit are effectively controlled by the data processing terminal according to water flow values, and when the content of each pollutant in sewage in the micro-algae symbiotic purifying unit reaches the standard, the water quality on-line detecting system feeds data back to the data processing terminal, so that the electric valves between the micro-algae symbiotic purifying unit and the aquatic ecosystem unit are in an open state, and the sewage can flow into the aquatic ecosystem unit; The sewage treatment device comprises a domestic sewage regulation tank, a micro-algae symbiotic purification unit, a fan aeration facility and a water inlet, wherein the domestic sewage regulation tank is provided with a water inlet and a water outlet, large granular substances in the sewage entering the domestic sewage regulation tank naturally settle under the action of gravity, so that water body after the domestic sewage is subjected to primary treatment flows into the micro-algae symbiotic purification unit through the water outlet, the micro-algae symbiotic purification unit consists of a reaction tank, a baffle plate and the fan aeration facility, the baffle plate divides the reaction tank into two parts, and the fan aeration facility is arranged at the bottom of the part containing the water inlet of the micro-algae symbiotic purification unit and is used for aeration oxygenation by the fan aeration facility; The water purified by the micro-algae symbiotic purification unit enters an aquatic ecology system unit, the aquatic ecology system unit comprises a water distribution pipe and an aquatic plant planting groove, aquatic filter feeding animals are cultivated at the middle lower end of the water distribution pipe, an aquatic plant planting groove with the inner diameter of 8cm is arranged at each 15cm interval of the upper end of the water distribution pipe in a punching mode, and aquatic vegetables are planted in the aquatic plant planting groove and are provided with a sponge and a fence net. Further, the fan aeration facility is externally connected with a solar cell panel. Further, the aquatic vegetable is one or more of herba Oenanthes Javanicae, watercress, pedicellus et pericarpium Trapae, and water spinach. Compared with the prior art, the invention has the beneficial effects that: 1. The invention provides a method for biological and chemical coupling action aiming at the problems existing in rural domestic sewage treatment, combines a aquatic ecological chain restoration technology with an Internet of things technology to form a set of waste recycling system for rural domestic sewage, and can effectively remove nutrient salts such as nitrogen, phosphorus and the like in the rural domestic sewage through the aquatic ecological chain restoration technology. 2. The purification effect of the invention on rural domestic sewage can reach the standard of surface IV water according to the water quality requirement of surface water in s