Water treatment method utilizing regenerated zeolite bed ammonia-nitrogen converter
A water treatment and converter technology, applied in chemical instruments and methods, multi-stage water/sewage treatment, adsorbed water/sewage treatment, etc. Large and other problems, to achieve the effect of reducing the project area, reducing the area and reducing the construction cost
Inactive Publication Date: 2012-12-12
ANHUI ACADEMY OF ENVRIONMENTAL SCIENCE RESEARCH
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Problems solved by technology
[0003] Constructed wetland is an important technology selection for water pollution control. It has the advantages of low investment and operation costs, low secondary pollution, and low management and protection requirements. It is more suitable for the treatment of open water bodies such as rivers and lakes, but the disadvantage of large area also limits The promotion and application of artificial wetland technology in the actual engineering of river and lake treatment
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[0019] The present invention will be further described below in conjunction with specific examples, but the protection scope of the present invention is not limited thereto.
[0020] see figure 2 , select a typical inferior V-class river polluted by ammonia nitrogen for treatment demonstration, build a regenerated zeolite bed ammonia-nitrogen converter next to the river, and carry out demonstration treatment of ammonia nitrogen in the river inflow water, and the effluent can stably meet the water quality standard of class IV surface water. Main parameters and technologies Economic Indicators:
[0021] Treatment scale: 100t / d; incoming water ammonia nitrogen: 5-6mg / L; zeolite bed volume size: 1.5m×1.5m×1m=2.25m 3 ;Subsurface flow wetland volume size: 6m×2m×0.6m=7.2m 3 ; Zeolite bed switching time: 30d; Effluent ammonia nitrogen: 80%; Total nitrogen removal rate: >70%; Project area: 30m 2 ; Ton of water project area: 0.3m 2 / t; construction cost: ￥50000; construction cost p...
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The invention discloses a treatment method for developing water body ammonia-nitrogen treatment by utilizing a regenerated zeolite bed ammonia-nitrogen converter. After necessary pretreatments through a grid, a regulating and settling tank, and the like, two alternately-used zeolite beds and a subsurface flow wetland are arranged; after incoming water is adsorbed through the zeolite bed, effluentwater meets requirements for surface water function regionalization; the two zeolite beds operate alternately, when one zeolite bed is in a working state and adsorbs ammonia and nitrogen, the other zeolite bed carries out aeration and desorption, and the nitrogen is removed through the subsurface flow wetland. Through carrying out demonstrated treatment on a river subjected to ammonia-nitrogen pollution, the water treatment method disclosed by the invention has remarkable comparative advantages in the aspects of ammonia-nitrogen removal rate, project occupying land, construction cost, and thelike compared with the conventional artificial wetland; and because the project occupying land is greatly reduced, space is expanded for the popularization and application of the water treatment method.
Description
technical field [0001] The invention relates to an artificial wetland, and belongs to the technical field of ecological treatment of open water bodies, in particular to a water treatment method using a regenerated zeolite bed ammonia-nitrogen converter. Background technique [0002] Ammonia nitrogen is the primary pollutant in many open water bodies. Because it involves water body sensory and drinking safety, it has also become the focus of river and lake pollution control in my country. [0003] Constructed wetland is an important technology selection for water pollution control. It has the advantages of low investment and operation costs, low secondary pollution, and low management and protection requirements. It is more suitable for the treatment of open water bodies such as rivers and lakes, but the disadvantage of large area also limits The promotion and application of constructed wetland technology in the actual project of river and lake treatment. [0004] From the p...
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IPC IPC(8): C02F9/14C02F1/28
Inventor 陈云峰张浏吴蕾张彦辉
Owner ANHUI ACADEMY OF ENVRIONMENTAL SCIENCE RESEARCH