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Stereo-thin-layer wet land technique for treating eutrophication water and its filtering block

A technology of eutrophic water and filter blocks, which is applied in the fields of energy wastewater treatment, sustainable biological treatment, biological water/sewage treatment, etc.

Inactive Publication Date: 2003-09-24
申光华
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In 1996, the state decided to focus on solving the pollution control problems of "three lakes" and "three rivers" ("three lakes" are Taihu Lake, Chaohu Lake and Dianchi Lake; "three rivers" are Huaihe River, Haihe River and Liaohe River)

Method used

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  • Stereo-thin-layer wet land technique for treating eutrophication water and its filtering block
  • Stereo-thin-layer wet land technique for treating eutrophication water and its filtering block
  • Stereo-thin-layer wet land technique for treating eutrophication water and its filtering block

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Experimental program
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Embodiment 1

[0033] Embodiment 1. Comparison of high-density water cluster box systems for indoor simulation of nutrient water bodies

[0034] Indoor high-density water cluster box fish culture system that simulates eutrophic water body, through 2 to 3 blocks with a total area of ​​1m 2 Small filter block, watercress and mint are mainly planted on the filter block, this system can realize high-density fish farming (goldfish, carp), the total water volume of the three water cluster tanks is 700kg, a total of 4kg of fish is raised, and the density reaches 6kg / m 3 , do not change the water all year round (only add water), and the feed can meet the fish's saturated feeding needs. With a 30w submersible pump, through the timer, pump water for 15 minutes per hour to the high water cluster tank, and then let it flow through the filter block 1 with watercress into the middle water cluster tank, and then let it flow through the first water cluster The two filter blocks flow into the third water cl...

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Abstract

Said invention adopts the expanded pearlite with rich micropores and makes it into filter block with rough surface, every filter block has several recessed grooves on its transverse direction, two sides of its longitudinal direction and its back side are equipped with water-retention walls, and lower front end of its bottom portion is equipped with a water-receiving groove. Several filter blocks are connected, and made into a filter unit with inclined step-like structure from bottom to top, and the inclined angle of the filter unit alpha is greater than or equal to 10 deg.C or less than or equal to 30 deg.C, on the filter block the wetland economic plant is planted, the eutrophicated water or urban domestic water water can be slowly flowed through filter block to form membrane phase effect so as to clean water quality.

Description

technical field [0001] The invention relates to a three-dimensional thin-layer wetland technology and a filter block for treating eutrophic water and urban domestic waste water, belonging to the technical field of water quality purification and treatment, in particular to the treatment technology of eutrophic water. Background technique [0002] At present, there are many technologies for treating domestic and industrial sewage, but there are few reports on the technology for specifically treating eutrophic water bodies. Even if there are reports, the methods of wetlands or simple artificial wetlands are mainly used for treatment. Although there are certain effects, but Its benefits are too low; it takes up a large amount of valuable land, and it is difficult to promote in today's era of increasing land scarcity; and all these natural and artificial wetlands cannot overcome the fundamental defect of methane production in natural wetlands, because methane is a A strong greenh...

Claims

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Application Information

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IPC IPC(8): C02F1/44C02F3/32
CPCY02W10/10Y02W10/37
Inventor 申光华
Owner 申光华
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