Rapid construction method for filling filter material in constructed wetland unit pool

Abstract

The invention provides a rapid construction method for filling filter materials in a constructed wetland unit pool. The constructed wetland unit pool is composed of a horizontal flow pool and an upwelling pool, and the horizontal flow pool and the upwelling pool are separated by a unit lattice wall. During construction, the filter materials in the upwelling pool and the horizontal flow pool are subjected to regional cross filling construction, filling of the filter materials comprises a layered filling mode and a segmented filling mode, and the types of the filter materials comprise volcanic rock, broken stone, zeolite, broken brick ceramsite and biological balls; and in the step of regional cross construction, the filter materials except a reserved opening are filled firstly, then the filter materials from the unit side wall to the position 2 m away from the reserved opening are filled, then the reserved opening wall is blocked, and finally the remaining filter materials are filled. According to the rapid construction method, the construction cost is reduced, the construction efficiency is improved, and meanwhile the construction problems that during filter material filling, the layered filling thickness is not uniform, the segmented filling boundary is irregular, the filter materials are mixed, and construction mechanical equipment cannot pass conveniently due to narrow roadson the outer sides of unit pools can be effectively solved.

Description

technical field [0001] The invention relates to the construction field of a constructed wetland unit pool, in particular to a rapid construction method for filling filter material in a constructed wetland unit pool, which is a construction method for filter material layering and section filling. Background technique [0002] Constructed wetlands are artificially built into pools or trenches, and the bottom surface is laid with an anti-seepage water-proof layer and filled with a certain depth of soil or filler layer to form a ground that is artificially controlled and operated similar to swampland. According to the way of wastewater runoff, constructed wetlands can be Divided into three modes: surface flow wetlands, subsurface flow wetlands and vertical wetlands. In surface flow wetlands, wastewater flows on the surface of the filler, and the degradation of most organic matter is completed by microorganisms located in the biofilm at the base of plant stems submerged in wastew...

AI Technical Summary

Problems solved by technology

[0004] The invention provides a rapid construction method for filter material filling in artificial wetland unit pools, which can effectively solve the problems of filter material filling: layered filling with uneven thickness, segmented filling For construction problems such as irregular boundaries, confusion of filter materials, and inconvenient passage of construction machinery and equipment due to narrow roads outside the unit pool, the technical solutions are as follows:

Images