Rural domestic sewage deep purification-sterilization reactor system

A technology of reactor system and domestic sewage, applied in the direction of biological water/sewage treatment, water/sewage treatment, chemical instruments and methods, etc., can solve the problems that have not been found in agricultural environment applications, achieve good purification effect, reduce clogging and saturation The effect of the frequency and short time

Pending Publication Date: 2017-01-04
JIANGSU ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although widely used in the laboratory, no application in the agricultural environment has been found so far

Method used

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  • Rural domestic sewage deep purification-sterilization reactor system
  • Rural domestic sewage deep purification-sterilization reactor system
  • Rural domestic sewage deep purification-sterilization reactor system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 2

[0051] Example 2 Effect of Rural Domestic Sewage Deep Purification / Sterilization Reactor System on Surface Water Quality

[0052] This example examines the effect of a rural domestic sewage deep purification / sterilization reactor system on surface water quality. The specific operation mode of this embodiment is similar to that of Embodiment 1. The test sewage is pretreated domestic sewage, which is taken from the Jiangsu Academy of Agricultural Sciences. The basic physical and chemical properties of the water quality are: pH 8.74±0.47, electrical conductivity (EC) 506.9±181.4μs cm -1 , chemical oxygen demand (COD) 62.3±32.6mg·L -1 , TN 27.93±12.04mg·L -1 , ammonia nitrogen (NH 4 + -N)24.15±9.97mg·L -1 , TP 3.31±2.26mg·L -1 . The pH value of the surface water treated by the new rural domestic sewage deep purification / sterilization reactor system was lower than that of the control group. Compared with the control group, the EC value of surface water after treatment incre...

Embodiment 3

[0055] Example 3 Effects of Rural Domestic Sewage Advanced Purification / Sterilization Reactor System on Surface Water Ammonia Volatility

[0056] This example investigates the effect of a rural domestic sewage deep purification / sterilization reactor system on surface water ammonia volatilization. The specific operation mode of this embodiment is similar to that of Embodiment 1. The 700℃-1% treatment had the least amount of ammonia volatilization in the treatment group added with biochar, and the total amount of ammonia volatilization was 43.02kg·hm in the whole growth period of cress -2 , TWW group is 40.44kg·hm -2 ( figure 2 ). After the system is treated, the volatilization of ammonia in the polluted water decreases, which plays a positive role in the environment.

Embodiment 4

[0057] Example 4 Effects of Rural Domestic Sewage Deep Purification / Sterilization Reactor System on Plant Growth

[0058] This example investigates the effect of a rural domestic sewage deep purification / sterilization reactor system on plant growth. The specific operation mode of this embodiment is similar to that of Embodiment 1. After the new type of deep purification / sterilization reactor system for domestic sewage in rural areas, the aboveground biomass of cress was significantly higher than that of the TWW control, and the 500℃-1% treatment group had the highest aboveground biomass (1192.9g m -2 , image 3 ). After the treatment of this system, the biomass of aquatic plants increases, on the one hand, it helps to further absorb the nutrients in the polluted water, and on the other hand, this part of the biomass can also be used as resources.

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Abstract

The invention discloses a rural domestic sewage deep purification-sterilization reactor system, and belongs to the field of agricultural sewage purification. The rural domestic sewage deep purification-sterilization reactor system comprises two sub systems, wherein a primary reactor is a low-pollution water purification system based on charcoal improved constructed wetlands; a secondary reactor is a catalysis-sterilization deep water purification system based on photovoltaic power generation. The primary reactor uses the charcoal improved constructed wetlands as major treatment units; through the multilevel and multi-azimuth purification functions of the absorption effect of wetland plants, the purification effect of wetland soil-water interface natural biological membranes, a wetland self soil percolation system, the adsorption effect of charcoal in the soil, the adsorption and filtering effects of wetland bottom layer fillings (zeolite) and the like, the preliminary purification of rural domestic sewage is realized. The secondary reactor uses solar energy as an energy source; a sufficient ultraviolet light source is provided for a catalytic reactor; the further catalytic degradation of a catalyst on ammonia nitrogen is realized; meanwhile, the killing of ultraviolet rays on harmful microbes in waste water is realized.

Description

technical field [0001] The invention relates to a deep purification-sterilization reactor system for domestic sewage in rural areas, specifically, a deep purification system for rural low-pollution water that combines artificial wetlands based on biomass charcoal, photocatalytic technology and green energy. Background technique [0002] Rural Low Pollution Water [0003] According to reports, domestic sewage and livestock and poultry breeding wastewater are the two major sources of pollution in rural areas. Among them, the TN of the aquaculture wastewater in the Taihu Lake Basin is generally 30-40mg / L, and the TP is between 2.5-3.5mg / L. However, due to the large amount of sewage generated in rural areas, scattered distribution, and intermittent discharge, it has a significant impact on the rural ecological environment and public health. The present invention carries out advanced treatment on the tail water of low-pollution domestic sewage. Here we define low-pollution wate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14
CPCC02F9/00C02F2303/04C02F2209/08C02F2209/16C02F2209/14C02F2209/15C02F3/32C02F1/32C02F1/281C02F1/283Y02W10/37
Inventor 冯彦房段婧婧刘杨孙海军杨林章薛利红王悦满
Owner JIANGSU ACAD OF AGRI SCI
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