A sea cauliflower macrobenthic economic wetland system to purify farmland runoff

A technology for benthic animals and sea cauliflower, which is applied in chemical instruments and methods, water/sewage multi-stage treatment, water/sludge/sewage treatment, etc., can solve the problem of high cost, and meet the requirements of high edible value and water body nutrient content. Low, improve the effect of underwater light and dissolved oxygen
CN104071944BActive Publication Date: 2016-11-30CHINESE RES ACAD OF ENVIRONMENTAL SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINESE RES ACAD OF ENVIRONMENTAL SCI
Publication Date
2016-11-30

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Abstract

The invention provides a sea cauliflower macrobenthos economic wetland system for treating farmland runoff, comprising: a pesticide removal tank, which is connected to the water outlet of the water inlet tank, and filled in the tank body of the pesticide removal tank There are straws; the wetland unit is connected to the water outlet of the pesticide removal tank, and the bottom of the wetland unit is sequentially provided with a clay waterproof layer, a substrate layer and a flooded layer, and seaweed is planted on the substrate layer. Cauliflower, snails and the like are also placed in the wetland unit. The invention removes pesticides and provides carbon sources for the wetland unit through the pesticide removal pond equipped with straw, so that the microorganisms, sea cauliflower and snails in the wetland unit can form a good ecological cycle system, so that the wetland system can run stably for a long time. And the sea cauliflower and snails in the wetland unit have high economic value, which can further improve the economic performance of the wetland.
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Description

technical field

[0001] The invention belongs to the field of sewage treatment, and in particular relates to a sea cauliflower-macrobenthos economic wetland system which can operate stably for a long time by using a pesticide removal pond equipped with straws to remove pesticides and provide carbon sources for wetland units. Background technique

[0002] Farmland non-point source pollution has become the main pollution source of most rivers and lakes, and farmland runoff is one of the main sources of farmland non-point source pollution. Farmland runoff is a typical low-pollution water, which contains various pollutants such as nitrogen, phosphorus, and residual pesticides. hotspot. At present, the technologies used to treat farmland runoff mainly include wetland treatment technology, vegetation buffer zone treatment technology, biofilm treatment technology, etc. Among them, wetland technology has been the most widely used due to its characteristics of low investment and low ...

Claims

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