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Micro ecological system unit and its use in water environment treatment

A micro-ecological system, ecological concrete technology, applied in biological water/sewage treatment, sustainable biological treatment, water/sludge/sewage treatment, etc., can solve the problems of small hydraulic load, large floor space, etc., and achieve management costs Small, easy to manage, less construction investment

Inactive Publication Date: 2007-04-11
NANJING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when dealing with river water pollutants, it is only suitable for rivers with soil slope protection. Limited by the site, the hydraulic load is small and the floor area is large.

Method used

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  • Micro ecological system unit and its use in water environment treatment
  • Micro ecological system unit and its use in water environment treatment

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] It is carried out on the pilot test platform, and the water quality is mainly simulated domestic sewage.

[0032]Ecological concrete components with a length of 0.6m, a width of 0.6m and a depth of 0.6m are used as the shell (shell) 1 of the micro-ecological system unit. The artificial filter material layer 2 at the bottom of the micro-ecological system unit is a mixed landfill of general filter material and special filter material in a volume ratio of 1:1. The depth of landfill is 30 cm, and the upper part is an artificial soil layer 3 with a thickness of 20 cm. The total filling depth It is 50cm. The artificial filter material layer is a general filter material composed of natural impact river sand and clay (Xiashu loess) mixed in a volume ratio of 95:5. The special filter material in the artificial filter material is water slag from Ma'anshan Iron and Steel Plant (main component ratio: calcium oxide 37.4%, aluminum oxide 30.4%, iron oxide 0.463%). The artificial so...

Embodiment 2

[0037] It is carried out on the pilot test platform, and the water quality is mainly simulated domestic sewage.

[0038] Ecological concrete members with a length of 0.6m, a width of 0.6m and a depth of 0.6m are used as the shell 1 of the micro-ecological system unit. The artificial filter material layer 2 at the bottom of the micro-ecological system unit is general filter material and special filter material layered landfill according to the volume ratio of 1:1, and the depth of landfill is 30cm, wherein the lower layer is a special filter material layer with a thickness of 15cm, and the upper layer It is a general filter material layer with a thickness of 15cm. The upper part of the micro-ecosystem unit is an artificial soil layer 3 with a thickness of 20 cm, and the total filling depth is 50 cm. The general filter material in the artificial filter material is composed of natural impact river sand and clay (Xiashu loess) in a volume ratio of 90:10. The special filter mater...

Embodiment 3

[0043] It is carried out on the pilot test platform, and the water quality is mainly simulated domestic sewage.

[0044] Ecological concrete members with a length of 0.6m, a width of 0.6m and a depth of 0.6m are used as the shell 1 of the micro-ecological system unit. The artificial filter material layer 2 at the bottom of the micro-ecological system unit is general filter material and special filter material layered landfill according to the volume ratio of 1:1, and the depth of landfill is 30cm, wherein the lower layer is a special filter material layer with a thickness of 15cm, and the upper layer It is a general filter material layer with a thickness of 15cm. The upper part of the micro-ecosystem unit is an artificial soil layer 3 with a thickness of 20 cm, and the total filling depth is 50 cm. The general filter material in the artificial filter material is composed of natural impact river sand and clay (Xiashu loess) in a volume ratio of 90:10. The special filter mater...

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Abstract

The present invention discloses one kind of micro ecological system unit and its application in water environment treatment, and belongs to the field of river and lake water environment treating technology. Inside a casing of ecological concrete material, there are artificial filtering material layer, artificial soil layer and plant from bottom to top. The artificial filtering material layer has common filtering material and special filtering material, the common filtering material is mixture of river sand and clay, and the special filtering material contains iron, aluminum or calcium. The artificial soil layer has mixed soil and sawdust; and the plant can eliminate nitrogen and phosphorus pollutant. The present invention is used in treating water environment, can eliminate SS, COD, BOD5, and nitrogen and phosphorus pollutant effectively, and has low cost.

Description

technical field [0001] The invention relates to the technical field of river and lake water environment pollution control, more specifically a microecological unit structure system and its application in river and lake water environment pollution control. Background technique [0002] With the rapid development of my country's economy and the acceleration of urban construction, the pollution of urban water environment is becoming more and more serious. The outstanding performance is to build the river channel into three-sided smooth cement mortar masonry, clearing away aquatic plants and benthic organisms; both sides of the urban river channel are almost gray and white upright concrete retaining walls, which are very different from the modern or classical architectural art around the modern urban river channel. It is commensurate and uncoordinated with the surrounding environment; at the same time, the eutrophication of lake water is becoming more and more serious. The reas...

Claims

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Application Information

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IPC IPC(8): C02F3/32
CPCY02W10/10
Inventor 李正魁赖鼎东宁安杨竹攸张晓娇孙成陈耀材
Owner NANJING UNIV
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