CN2913350Y - Purifying device for centralization discharge area-source pollution - Google Patents

Abstract

The utility model relates to a non-point source pollution purification device, which is more particularly suitable for water purification in a centralized draining type non-point source polluted canal, belonging to environmental pollution administration filed. A plurality of such devices are disposed inside a centralized draining type non-point source polluted canal. The non-point source pollution purification device is composed three units that are interconnected to form a whole. The lower layer is a cobblestone biological filter with diameter of 2-5 cm, the middle is a flexible elastic filler layer, and the upper layer is an aquatic plant floating bed. The organic pollutants inside non-point source are degraded by microorganisms inside the biological membrane adherent by cobblestone, elastic filler and plant root system, and the nitrogen and phosphor pollutants in the non-point source pollution are absorbed by the root of aquatic plant. Placing the device in a canal can slow down water velocity, is in favor of particle pollutant being deposited, and can achieve non-point source pollution purification purpose by biological, physical and chemical actions.

Description

Discharging pollution of area source device is concentrated in a kind of purification

Technical field:

The utility model relates to a kind of purification and concentrates discharging pollution of area source device, is specially adapted to concentrate purification of water quality in the emission type pollution of area source irrigation canals and ditches, belongs to the environmental pollution improvement field.

Background technology:

Along with urban construction and development, Urban Water Environment is constantly polluted, and the major reason that pollution of area source causes urban water-body to pollute just, in the rainfall, the runoff of rainwater and formation thereof is flowed through urban ground (as the commercial zone, the residential district, the parking lot, street etc.), assemble a series of pollution substances (as crude oil, nitrogen, phosphorus, toxic substance, organic substance etc.), enter receiving water body by cross flow or Storm Sewer Network, and then surface water or underground water polluted, compare with point-source pollutions such as sanitary sewages with urban industry waste water, urban runoff pollutes and has randomness, discontinuity, dispersed, latent and characteristics such as sudden are very serious to the threat of Urban Water Environment.Pollute in order to control this class, adopt some engineering measures at present, as build buildings of settling tank, seepage hole, porous porous pavement, water reservoir and processing pollutent etc., these methods have effect preferably to the control pollution of area source, but do not have and can fine reaching subdue the wherein purpose of pollution substance.Adopt artificial swamp to purify this class in addition and pollute, but need bigger floor space,, be difficult to carry out for the urban land resource anxiety.

Summary of the invention

The some clump refining plants of the utility model for being provided with in the irrigation canals and ditches of concentrating discharging face source sewage, it is made up of three cell cubes, and connection is arranged between each, constitutes one.Lower floor is diameter 2～5cm pebbles bacteria bed, the resilient filler layer of middle level for bending and stretching, and the upper strata is the waterplant floating bed.Utilize organic pollution materials in the microbiological deterioration face source in the microbial film that pebbles, elastic filler and root system of plant adhere to, waterplant absorbs nitrogen, Phosphorus pollutent in the pollution of area source by root system, and this device is positioned in the irrigation canals and ditches can slow down flow velocity, help the particulate matter pollutant and deposit, reach the purpose of subduing pollution of area source through many-sided comprehensive actions such as biology, physics and chemistry.

Description of drawings

Fig. 1 is the apparatus structure synoptic diagram: 1-plant, 2-buoyancy aid, 3-link, 4-elastic filler, 5-framework, 6-irrigation canals and ditches, 7-mesh bag, 8-pebbles.

Fig. 2 is a plot plan.

Embodiment

As shown in Figure 1, the utility model device is placed in pollution of area source and concentrates in the discharging irrigation canals and ditches (6), according to the water yield and the water quality situation of actual discharge mouth, determines to place how many clumps, is made up of three cell cubes for every clump: bacteria bed, resilient filler layer and biological floating bed.Three cell cube vertical demixings are placed, and wherein the bacteria bed filler adopts the pebbles about diameter 2～5cm, and are positioned over and are convenient to construction in the mesh bag (7); Resilient filler layer can be bent and stretched the adaptation change of level in vertical direction, and some bundle elastic fillers (4) are a cell cube; Biological floating bed plant is selected local indigenous waterplant (1) for use, and biological floating bed buoyancy aid (2) and resilient filler layer connect.

Bacteria bed and elastic filler need be through natural membranes after a while, perhaps inoculation membrane formation, and it is firm to notice that three cell cube intermediary connect.Biological floating bed waterplant utilizes local native species, trains seedling nearby, when plant strain growth is being transplanted to certain altitude on the buoyancy aid of floating bed, notices that root system will go deep in the water.

Claims (1)

1. purify to concentrate discharging pollution of area source device for one kind, it is placed in pollution of area source and concentrates in the discharging irrigation canals and ditches (6), it is characterized in that every clump is made up of three cell cubes, has connection, the formation one between each; Lower floor is diameter 2～5cm pebbles bacteria bed, the resilient filler layer of middle level for bending and stretching, and the upper strata is the waterplant floating bed.