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Rural domestic waste water treatment recycling process and device

A domestic wastewater and regeneration device technology, applied in the field of environmental engineering, can solve the problems of difficult promotion and use in rural areas, high operating costs, and high management requirements, and achieve the effects of reducing ultraviolet light time, reducing operating costs, and simple operation and management

Active Publication Date: 2013-01-30
JIANGSU SHANGDA WATER AFFAIR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Although the current urban sewage treatment technology is feasible, it is difficult to popularize and use it in rural areas because of high investment, high operating costs and high management requirements.

Method used

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  • Rural domestic waste water treatment recycling process and device
  • Rural domestic waste water treatment recycling process and device
  • Rural domestic waste water treatment recycling process and device

Examples

Experimental program
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Effect test

Embodiment 1

[0015] The present invention's rural domestic wastewater treatment and reuse process and device are referred to respectively figure 1 and figure 2 As shown, the biofilm reactor device, regeneration device, three-dimensional photoelectrochemical reactor device and pipelines in the present invention are spliced ​​by polyvinyl chloride tube sheets. The middle of the regeneration device is divided into two parts, the regeneration liquid storage area and the backwash liquid storage area, by a partition 16 . Flowmeters are installed in the water inlet and outlet pipes to keep the balance of water in and out of the water, and a water pump 13 is installed at the water inlet of the biofilm reactor device to accelerate the delivery of water and maintain a certain flow rate. The biofilm reactor device is also equipped with a hydraulic gauge 14 to prevent pressure overload.

[0016] The biofilm reactor device is filled with a supporting plate 8, a supporting layer 9, an adsorption medi...

Embodiment 2

[0020] Rural domestic washing water is used as the treatment object, and it is used for dyeing after treatment. Originally, each tank of fabric was washed 8 times after dyeing, each 10L, and each washing time was 10min. A total of 80L of fresh tap water was required. The water quality index of the first effluent see Table 1. Using the treatment process and device of the present invention, 10L of washing water in the first channel and 1L of pre-inflow water in the adsorption filtration device are used for online treatment and recycling, that is, the subsequent washing 7 channels are all carried out with the outlet water after adsorption and filtration. (That is, equivalent to the 8th wash water) See Table 1 for the effluent quality after adsorption filtration. After continuous washing of 20 cylinders of fabrics, the adsorption and filtration device reaches the breakthrough point, and then the regenerated adsorption medium is eluted with the regeneration device, and the regenera...

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Abstract

The invention discloses a rural domestic waste water treatment recycling process and a recycling device. The waste water produced in the rural life can be recycled for a washing procedure after being decolored and purified by a bio-membrane reactor, after the bio-membrane reactor is saturated, the bio-membrane reactor is high-efficiently and rapidly renewed by utilizing a renewable device, the renewed concentrated solution and the backwashing waste water are discharged after being oxidized and degraded by a three-dimensional photoelectrical chemical reactor to reach the standard, and thus a purpose for purifying and recycling the rural domestic waste water can be realized. Through the process and the device, the concentration of pollutants in the domestic waste water can be continuously reduced, and a purpose for recycling the waste water can be realized; and the recycling rate of the waste water is high (more than 85 percent), the environmental pollution of the countryside caused by the pollutants of the rural domestic water can be greatly reduced, and the consumption and operation cost of the rural domestic water can be reduced.

Description

technical field [0001] The invention relates to a process for treating and reusing domestic wastewater in rural areas and a device thereof, belonging to the field of environmental engineering. Background technique [0002] Rural domestic sewage in my country mainly comes from kitchen cooking, bathing, washing, toilet flushing, and fecal wastewater produced by rural residents raising livestock and poultry. The main characteristics are as follows: rural domestic sewage is widely distributed and scattered, and most rural areas have no sewage discharge pipe network; The concentration of rural domestic sewage is low and the water quality fluctuates greatly, but the nature of rural domestic sewage is not much different. The water basically does not contain heavy metals and toxic and harmful substances, contains a certain amount of nitrogen and phosphorus, and has strong biochemical properties. [0003] Although the current urban sewage treatment technology is feasible, it is diffic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14
Inventor 徐卫东顾杨倪丹丁青松
Owner JIANGSU SHANGDA WATER AFFAIR
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