Research On Technology Mode And Morphology Construction Method Of The Constructed Wetland For Sewage Purification

The paper firstly undertakes a basic research on water purification technology ofthe constructed wetland for sewage purification, which ranges over its concept, function,spatial location, construction factors and the technological process. The innovation pointis the paper extends the concept of the constructed wetland for sewage purification tothe field where environics; bionomics and landscape studies are combined and makes athorough study of the classification of constructed wetland from the combination.The significance of the research on technology pattern of the constructed wetlandis to provide technology selection for engineering practice and to fill the blank of thelandscape field where there is a lack of technical support to the constructed wetland.Thepaper classifies the technology pattern into the basic mode, the combination mode andthe application mode. The basic mode has the pretreatment system, the constructedwetland system and the after-treatment system. The combination mode consists ofsingle type, parallel type, serial type, and composite type. Application pattern includesthe domestic sewage treatment type mode, the river sewage treatment mode, eutrophicwater purification mode, secondary deep purification mode, and agricultural irrigationor livestock and poultry water sewage mode.The paper puts forward the basic technologic morphology construction method; thecomposite functional morphology construction method and the conflict betweentechnology and function morphology construction method from the technologic;ecological and humanistic aspects. The basic technologic morphology constructionmethod whose shape is the structured geometric one applies the formula calculation wayto determine the form of the constructed wetland for sewage purification, whichincludes length, width and surface area of constructed wetland. The compositefunctional morphology construction method has ecological function morphologyconstruction, cognitive function morphology construction, aesthetic functionmorphology construction. Concretely, it includes analogical relevant construction usedto extract morphology prototype;bionic morphology construction; close to naturecognitive construction, critical cognitive construction, and formal beauty construction.In the final, using the constructed wetland for sewage purification in Qing Gang Countyto practice and text the form and constructed method of the paper. The technology formand landscape morphology construction of constructed wetland for sewage purificationmake the project fulfill the design, which transfers the single purification function intothe composite integration of the ecological, recreational, aesthetic function.