Ecological ditch combined treatment system of agricultural field surface source pollution reproducible zeolite
A technology of non-point source pollution and ecological ditches, which is applied in the field of agricultural sewage treatment and environmental protection, can solve the problems of large area, difficult regeneration, and limited adsorption capacity of natural zeolite during construction time, and achieves large electrostatic attraction, low cost, and prolonged The effect of hydraulic retention time
Inactive Publication Date: 2015-03-25
TIANJIN UNIV
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Problems solved by technology
[0004] The purpose of the present invention is to solve the problem of farmland non-point source pollution. Considering the shortcomings of traditional ecological ditch system, such as large area, long construction time, limited adsorption capacity of natural zeolite, difficult regeneration and future development direction, the combination of ecological ditch and natural zeolite It provides a beautiful, small footprint, convenient construction, and a renewable zeolite ecological ditch combination treatment system that integrates the functions of sewage transportation and interception. It can not only regenerate natural zeolite, but also retransmit part of the nutrients in sewage to In the farmland, it is absorbed by plants to achieve the purpose of environmental protection and energy saving
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[0025] Attached below Figure 1-3 The present invention is further described:
[0026] A combined renewable zeolite ecological ditch treatment system for farmland non-point source pollution, including farmland and a ditch set in the farmland. The ditch side wall 1 and the ditch bottom 2 are composed of the ditch side wall 1 and the ditch bottom. The angle between the ditch side wall 1 and the ditch bottom is about 45 degrees. 1 meter. The tops of the ditch side walls 1 on both sides are respectively provided with ditch topping 3, and the bottom 2 of the ditch is covered with pebbles or fiber layers 7, which are conducive to the formation and growth of biofilms, and on the surface of the pebbles or fiber layers 7 and On the side walls 1 of the ditches on both sides, there are concrete anti-seepage blocks 5 with hexagonal holes in the middle, and the hexagonal holes in the middle of the concrete anti-seepage blocks 5 are through holes. The upper and lower sides of the anti-see...
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The invention discloses an ecological ditch combined treatment system of agricultural field surface source pollution reproducible zeolite. The ecological ditch combined treatment system comprises an agricultural field and a ditch in the agriculture field, wherein a pressing cover is arranged on the top of two side walls of the ditch; cobbles or fiber layers are paved at the bottom of the ditch; concrete impermeable building blocks with hexagon holes in the middle are arranged on the surfaces of the cobbles or the fiber layers and two side walls of the ditch; the holes of the impermeable building blocks are filled with vegetation; zeolite piles are arranged at intervals on the surfaces of the concrete impermeable building blocks in the length direction of the ditch; agricultural field water drainage holes are respectively formed in two sides of the pressing cover of the ditch between every two zeolite piles. By adopting the ecological ditch combined treatment system, natural zeolite can be regenerated, and a part of nutrient components in sewage can be re-conveyed into the agricultural field and absorbed by plants, so that the purposes of environmental friendliness, energy conservation, small occupation area and convenience in construction are achieved.
Description
technical field [0001] The invention belongs to the technical fields of agricultural sewage treatment and environmental protection, and in particular relates to a combined treatment system for farmland non-point source pollution and renewable zeolite ecological ditches. Background technique [0002] With the rapid development of the economy, environmental problems are becoming more and more serious, which have a bad impact on the daily life of residents. Among them, the water pollution of Taihu Lake is a prominent one. There are three main sources of pollutants discharged into Taihu Lake, including industrial pollution, agricultural pollution and domestic pollution. Agricultural non-point source pollution mainly comes from the input of a large amount of agrochemicals. According to statistics, the annual average amount of chemical fertilizer application per hectare of cultivated land in the Taihu Lake Basin (converted to pure amount) has increased from 24.4 kg in 1979 to 66.7...
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Login to View More IPC IPC(8): C02F9/14
CPCC02F1/281C02F3/32C02F3/34C02F9/00
Inventor 王晓玲李建生李松敏乔斌涂佳敏
Owner TIANJIN UNIV