Tech., for treating water from city sewage treating plant by zeolite and limestone using artificial wet land

A technology for urban sewage and constructed wetlands, applied in biological water/sewage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc., can solve the problems of complicated operation and maintenance, difficult to popularize and use, and general treatment effect, etc. Achieve the effect of good treatment effect, strong impact resistance and composite ability, and low investment and operation cost

Inactive Publication Date: 2006-06-28
GUILIN UNIVERSITY OF TECHNOLOGY
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Problems solved by technology

At present, the sewage reuse technologies mainly include coagulation sedimentation, advanced oxidation, ultraviolet disinfection, activated carbon adsorption and membrane filtration technology, etc. However, due to the use of coagulant in the traditional coagulation sedimentation method, it is easy to cause secondary pollution, and the treatment effect is average. ; However, advanced oxidation, ultraviolet disinfection, activated carbon adsorption and membrane filtration technologies are difficult to be widely used due to their high processing costs and complicated operation and maintenance.

Method used

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  • Tech., for treating water from city sewage treating plant by zeolite and limestone using artificial wet land
  • Tech., for treating water from city sewage treating plant by zeolite and limestone using artificial wet land
  • Tech., for treating water from city sewage treating plant by zeolite and limestone using artificial wet land

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Embodiment

[0015] Such as figure 1 As shown, the artificial wetland pool (7) has a surface size of 1.0m×0.5m, a height of 1.0m, a filler porosity of 40%, an effective volume of 200L, a residence time of 24h, and a hydraulic load of 0.4m 3 / (m 2 d). There is a partition wall in the upper part of the wetland pool, and the wetland pool (7) and the partition wall (3) are made of plastic boards; there is a water inlet pipe (1) on one side of the partition wall (3), and a water inlet pipe (1) on the other side of the partition wall (3). Outlet pipe (5). The pool is filled with fillers, the overall thickness of the fillers is 100cm, and the filler filling sequence is as follows: the bottom is filled with cobblestone fillers with a particle size of 40-80mm (9) the thickness of the water-permeable layer is 10cm, and the zeolite with a particle size of 4-8mm is mixed with limestone on it. The filler (8) has a volume ratio of 1:1 and a thickness of 80 cm, and the top is covered with a quartz fin...

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Abstract

A process for treating the reclaimed water discharged from city sewage treating plant by use of artificial wetland features that the vertically flowing artificial wetland is composed of the filler consisting of zeolite and lime stone, and the plant bed consisting of canna, elephant grass, calamus, etc.

Description

technical field [0001] The invention relates to a sewage treatment process, in particular to a zeolite and limestone artificial wetland advanced treatment technology for urban sewage treatment plant effluent. Background technique [0002] Due to the shortage of water resources, the research on sewage reuse technology is becoming more and more extensive at home and abroad. At present, the sewage reuse technologies mainly include coagulation sedimentation, advanced oxidation, ultraviolet disinfection, activated carbon adsorption and membrane filtration technology, etc. However, due to the use of coagulant in the traditional coagulation sedimentation method, it is easy to cause secondary pollution, and the treatment effect is average. ; However, advanced oxidation, ultraviolet disinfection, activated carbon adsorption and membrane filtration technologies are difficult to be widely used due to their high processing costs and complicated operation and maintenance. Contents of t...

Claims

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Application Information

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IPC IPC(8): C02F3/32
Inventor 解庆林游少鸿白少元
Owner GUILIN UNIVERSITY OF TECHNOLOGY
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