CN105693016A

CN105693016A - Rain/sewage-mixed-flow-state river course distributed treatment technique

Info

Publication number: CN105693016A
Application number: CN201610072335.3A
Authority: CN
Inventors: 袁亦晴; 冯胤仪; 吴国华; 欧瑞妮
Original assignee: Shanghai Nanyang Model High School
Current assignee: Shanghai Nanyang Model High School
Priority date: 2016-02-01
Filing date: 2016-02-01
Publication date: 2016-06-22

Abstract

The invention discloses a rain/sewage-mixed-flow-state river course distributed treatment technique which is characterized by constructing a river course point source pollution counteraction bed at a point source pollution port, wherein the river course point source pollution counteraction bed is composed of a filter precipitation tank, an aerobe aeration tank, a floating bed aeration tank and a submerged plant-microbe composite ecological tank; and the water body discharged into the river course can enter the river under the condition of satisfying the Chinese Discharge Standard, thereby reducing the eutrophication influence on the water body. The technique reduces the sewage treatment input cost, relieves the treatment pressure of the municipal sewage plant, solves the problems of occupied area, treatment efficiency and the like caused by the restriction of the traditional technique to the rain/sewage-mixed-flow river course water purification, and avoids the problems of appearance, odor, low water flow speed and the like in the traditional ecological treatment technique.

Description

A kind of distributed Processing tecchnics in rain dirt mixed flow state river course

Technical field

The present invention relates to Ecology, water environmental protection field, be specifically related to the distributed Processing tecchnics in a kind of rain dirt mixed flow state river course。

Background technology

According to the visible Areas in Shanghai City of urban deputy river water quality testing result data in the environmental quality statement of Shanghai; from in Environment in Shanghai quality publication; whole city's trunk river section V class water 9.1% in 2014; bad V class water is up to 49.3%, and ammonia nitrogen and total phosphorus that main contamination index is eutrophication。Therefore can be seen that Shanghai City water quality is generally poor and eutrophication problem serious, it is badly in need of solving。The river course in city, especially old town, new extension local-style dwelling houses district be often subject to the pollution of rain dirt mixed flow water body, so also someone imagines and sewage is included in newly-built sewage network enters Sewage Plant and focus on, but because wide, local-style dwelling houses extension is fast, networking high in cost of production reason and cannot be carried out。Water sector was also once attempted in technology such as the discharge outlet place biotechnology of rain dirt mixed flow, floating bed technology, aerations to administer sewage, but the failure because of factors such as poor processing effect。

Summary of the invention

Present invention aims to institute's produced problem above; process technological principle in conjunction with successful water pollution to carry out transplanting and improving; explore the distributed Processing tecchnics designing a kind of rain dirt mixed flow state river course; it is placed in rain dirt mixed flow river course discharge outlet; the body eutrophication problem of scatterplot distributed solution rain dirt mixed flow; can clear up according to rainfall emphasis and pollute the sewage entering river in the comparatively serious time period, play the effect of purifying water body, protecting ecology。

The technical scheme is that

A kind of distributed Processing tecchnics in rain dirt mixed flow state river course, in point-source pollution mouth construction river course, point-source pollution clears up bed, described river course point-source pollution is cleared up bed and is made up of filtering settling pond, aerobic microbiological Aeration tank, floating bed Aeration tank, submerged plant-microorganism complex ecological pond, make the water body entering river course enter river when meeting GB discharge standard, reduce the eutrophication impact that water body is caused。

Rose Box that described filtering settling pond is made up of the pluggable multiple filtration net of gravity flow, precipitation plate, sewage draining exit, baffle plate, immersible pump, water-supply-pipe form, sewage is after the pluggable multiple filtration net of multilamellar, it is cut rubbish, bulky grain colloid, is sent into aerobic microbiological Aeration tank by immersible pump。

Described aerobic microbiological Aeration tank uses the method that physical treatment combines with biomembrane to process, constantly squeeze into air with air pump wherein and automatically form backflow wherein, carrying out aeration, increasing dissolved oxygen content in water body, promote aerobic bacteria breeding, it is suppressed that anaerobe grows；Hang the biomembrane that macromolecular material automatically forms for microorganism attachment wherein, make microorganism constantly breed on biomembrane。

Described floating bed plant aeration backflow pool uses the root attachment material as microorganism of emergent aquactic plant。

In described submerged plant-microorganism complex ecological pond, submerged plant rhizome is born in mud, whole plant submerged, and submerged plant is the compound biome of beneficial microbe attachment。

Traditional ecological process is combined by the present invention with biological treatment, devise that a kind of cost is low, take up an area few sewage disposal traverser, comprehensive and simplify multiple sewage treatment process, rain dirt mixed flow tube discharge outlet place, sewage is carried out distributed treatment, without carrying out other urban construction again, decrease the input cost of sewage disposal, alleviate the processing pressure of municipal sewage plant。The present invention overcomes the restriction that rain dirt mixed flow river water body is purified by traditional handicraft, problem in floor space, treatment effeciency etc., avoid attractive in appearance, the problem such as stink, current are slow owing to Traditional Ecological processes that technique brings, can according to circumstances increase and decrease the number of combinations for the treatment of facility module, each processing module can according to sewage quantity is how many effective working volume of the volume of swap modules, clearing up bed and adopt demountable structure, each module is with tidewater fluctuation and can be dragged the place shooting a retrievable arrow needs。

Detailed description of the invention

Present pre-ferred embodiments is given below, to describe technical scheme in detail。

A kind of distributed Processing tecchnics in rain dirt mixed flow state river course, in point-source pollution mouth construction river course, point-source pollution clears up bed, river course point-source pollution is cleared up bed and is made up of filtering settling pond, aerobic microbiological Aeration tank, floating bed Aeration tank, submerged plant-microorganism complex ecological pond, make the water body entering river course enter river when meeting GB discharge standard, reduce the eutrophication impact that water body is caused。

Rose Box that filtering settling pond is made up of the pluggable multiple filtration net of gravity flow, precipitation plate, sewage draining exit, baffle plate, immersible pump, water-supply-pipe form, sewage is after the pluggable multiple filtration net of multilamellar, it is cut rubbish, bulky grain colloid, is sent into aerobic microbiological Aeration tank by immersible pump。Earth in water etc. are deposited in the inclined-plane of bottom, can regularly be washed, will not pile up and too much affect filtration。

Aerobic microbiological Aeration tank uses the method that physical treatment combines with biomembrane to process, constantly squeeze into air with air pump wherein and automatically form backflow wherein, carrying out aeration, increasing dissolved oxygen content in water body, promote aerobic bacteria breeding, it is suppressed that anaerobe grows；Hang the biomembrane that macromolecular material automatically forms for microorganism attachment wherein, make microorganism constantly breed on biomembrane。Biomembrance process enables sewage to play the purification same with activated sludge continuously through suspension biological membranous layer, bottom pureed biological membranous layer, and owing to river sewage eutrophication problem is cleared up effect better by microorganism, therefore in the second ladder, sewage forms backflow。

Floating bed plant aeration backflow pool uses the root attachment material as microorganism of emergent aquactic plant。Emergent aquactic plant is less to the effect of clearing up of ammonia nitrogen, mainly by microbial degradation eutrophication element。Use floating bed plant-microorganism complex ecosystem can obtain better nitrogen phosphorus ligands effect, and the durability against pollution of emergent aquactic plant is better, and the submerged plant that durability against pollution in next processing unit is poor plays the effect clearing up process, protection in advance。

In submerged plant-microorganism complex ecological pond, submerged plant rhizome is born in mud, whole plant submerged, and submerged plant is the compound biome of beneficial microbe attachment。The aerating tissue that submerged plant tool is flourishing, is beneficial to and carries out gas exchange, and leaf mostly is long and narrow or thread, can absorb part nutrient in water, also can grow by normal growth under water when the low light level, and this kind of plant includes such as Herba vallisneriae Spiralis, hornwort, watermifoil, black algae etc.。Because submerged plant can absorb the nutrient substance in water body in growth course, including nitrogen, phosphorus etc., the water body after multi-reflow processes, five class water, the even state of four class water can be reached and enter river course。

Point Source of the present invention pollutes the water inlet pipe clearing up bed to be determined according to each Drain contamination for river channel mouth size, main pipeline is made by the curved spout having certain flexible ability, pipeline upper end and sewage draining exit are shut, lower end and the mouth of pipe be equipped with magnetic stripe, alternate up and down in pipe it is embedded with activated carbon filter screen, large-volume particulate thing absorbed portion pollutant can be hindered。Point-source pollution is cleared up the external structure of bed and is used for reference sightseeing pontoon bridge common on river, park, scenic spot, relatively large gravity can be born, squeeze into four pillars inserting riverbed at river bank, process system and pillar (pillar ensure that process system is relative stable at certain position) with four ring connections respectively。The water body entrance more at flood, very heavy rains, initial sewage and pollutant load processes system, purifies, it is ensured that the normal detergent power of device；Along with water level raises, flexible pipe reaches the flexible limit, and magnetic strip is opened, and rainwater does not enter back into process system, it is ensured that the normal flood carrying capacity of rainwater。

The ultimate principle of the present invention, principal character and advantages of the present invention have more than been shown and described。Skilled person will appreciate that of the industry; the present invention is not restricted to the described embodiments; described in above-described embodiment and description is that principles of the invention is described; the present invention also has various changes and modifications without departing from the spirit and scope of the present invention, and these changes and improvements both fall within the claimed scope of the invention。

Claims

1. the distributed Processing tecchnics in a rain dirt mixed flow state river course, it is characterized in that, in point-source pollution mouth construction river course, point-source pollution clears up bed, described river course point-source pollution is cleared up bed and is made up of filtering settling pond, aerobic microbiological Aeration tank, floating bed Aeration tank, submerged plant-microorganism complex ecological pond, make the water body entering river course enter river when meeting GB discharge standard, reduce the eutrophication impact that water body is caused。

2. the distributed Processing tecchnics in rain dirt mixed flow state river course according to claim 1, it is characterized in that, Rose Box that described filtering settling pond is made up of the pluggable multiple filtration net of gravity flow, precipitation plate, sewage draining exit, baffle plate, immersible pump, water-supply-pipe form, sewage is after the pluggable multiple filtration net of multilamellar, it is cut rubbish, bulky grain colloid, is sent into aerobic microbiological Aeration tank by immersible pump。

3. the distributed Processing tecchnics in rain dirt mixed flow state river course according to claim 1, it is characterized in that, described aerobic microbiological Aeration tank uses the method that physical treatment combines with biomembrane to process, constantly squeeze into air with air pump wherein and automatically form backflow wherein, carry out aeration, increase dissolved oxygen content in water body, promote aerobic bacteria breeding, it is suppressed that anaerobe grows；Hang the biomembrane that macromolecular material automatically forms for microorganism attachment wherein, make microorganism constantly breed on biomembrane。

4. the distributed Processing tecchnics in rain dirt mixed flow state river course according to claim 1, it is characterised in that described floating bed plant aeration backflow pool uses the root attachment material as microorganism of emergent aquactic plant。

5. the distributed Processing tecchnics in rain dirt mixed flow state river course according to claim 1, it is characterized in that, in described submerged plant-microorganism complex ecological pond, submerged plant rhizome is born in mud, whole plant submerged, and submerged plant is the compound biome of beneficial microbe attachment。