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Process for purifying and recycling crop irrigation water

A technology for purification and irrigation water, applied in water/sewage multi-stage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc., can solve problems affecting crop growth, endangering human health, and high content

Inactive Publication Date: 2016-01-06
ANHUI XINYUAN AGRI TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, traditional irrigation water has high levels of harmful substances such as fecal coliform bacteria, volatile phenols, sulfides, residual pesticides, and harmful insect eggs, which are recycled again. These harmful substances not only affect the growth of crops, pollute crop products, and endanger human health.

Method used

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Embodiment Construction

[0007] At present, the irrigation system in the 100-acre vegetable production area uses low-oxygen membrane bioreactors to treat irrigation sewage. A group of sewage processors treats 50 tons of sewage per day. The water quality after treatment is good and stable, and can be directly recycled, and the water quality reaches GB18918-2002 Class A standard. The specific implementation method is: estimate the amount of irrigation water according to the area of ​​the irrigation area, build irrigation sewage collection pools and wastewater sedimentation collection pools on this basis, and then determine how many sets of reactors need to be installed according to the selected reactor model. At the same time, a grid is installed at the outlet of the sewage collection tank to remove large suspended solids, and then the sewage collection tank, wastewater sedimentation collection tank and hypoxic membrane reactor are connected through pipelines, and the entrance and exit of the sewage coll...

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PUM

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Abstract

The invention discloses a process for purifying and recycling crop irrigation water. The process method comprises: an irrigation sewage collecting tank, a grille (for removing relatively big suspended substances), a wastewater depositing and collecting tank, a sewage input pipeline and a valve, a water pump, a low-oxygen membrane reactor, output of purified water, and re-irrigation. The process mainly utilizes a low-oxygen membrane bioreactor to perform deep purification on agricultural irrigation water to ensure that the treated water quality reaches a standard for nuisance-free vegetable irrigation water. The process method is energy-saving and environment-friendly, is convenient to operate, and is suitable for popularization and use in the field of treatment of irrigation water.

Description

technical field [0001] The invention belongs to the field of sewage treatment and recycling. Background technique [0002] my country is short of water resources, and the available water per capita is only a quarter of the world's per capita. However, the water consumption for agricultural irrigation is huge. If it is not recycled, it will not only waste water resources, but also cause a serious shortage of irrigation water. , therefore, irrigation water recycling is an inevitable trend. However, traditional irrigation water has high levels of harmful substances such as fecal coliform bacteria, volatile phenols, sulfides, residual pesticides, and harmful insect eggs, which are recycled again. These harmful substances not only affect the growth of crops, pollute crop products, and endanger human health. . Therefore, how to purify the irrigation water so that the irrigation water quality reaches the national standard is a problem to be solved by the present invention. Conte...

Claims

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Application Information

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IPC IPC(8): C02F9/14
Inventor 夏新发江庆周正祥
Owner ANHUI XINYUAN AGRI TECH CO LTD
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