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CN101492203B - Ecological pond simulating system for cultivation of advanced waste treatment - Google Patents

Ecological pond simulating system for cultivation of advanced waste treatment Download PDF

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CN101492203B
CN101492203B CN 200910068115 CN200910068115A CN101492203B CN 101492203 B CN101492203 B CN 101492203B CN 200910068115 CN200910068115 CN 200910068115 CN 200910068115 A CN200910068115 A CN 200910068115A CN 101492203 B CN101492203 B CN 101492203B
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sewage
water distribution
pond
aquatic plants
water
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CN101492203A (en
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张克强
杨鹏
白丽静
王风
杜连柱
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Agro Environmental Protection Institute Ministry of Agriculture
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Abstract

本发明公开了一种用于养殖废水深度处理的仿生态塘系统,处理方法为:经过厌氧消化处理的畜禽养殖污水,进入布水槽进行蓄积布水,污水经布水槽的底部穿孔进砂滤槽,污水经过布水曝气坡进行短程净化后进入塘体,塘体底部安装有人工水草。处理系统包括布水槽、砂滤槽、布水曝气坡、塘体、人工水草带、水生植物及浮体和污泥收集井,塘内水体表层的水生植物种植于浮体上,利用水生植物在生长过程中,对污水中碳氮磷的充分吸收和植物本身的呼吸,将氧气从植物叶片输送到根部,在根区形成一个微好氧环境,进一步刺激有机物质的分解和硝化细菌的生长,从而达到去除污水中氮、磷等营养物质的主要目的,同时也增加了塘体整体的观赏价值。

Figure 200910068115

The invention discloses an imitation ecological pond system for advanced treatment of breeding wastewater. The treatment method is as follows: the livestock and poultry breeding sewage treated by anaerobic digestion enters a water distribution tank for accumulation and water distribution, and the sewage enters the sand through perforations at the bottom of the water distribution tank The filter tank, the sewage enters the pond body after short-range purification through the water distribution aeration slope, and artificial aquatic plants are installed at the bottom of the pond body. The treatment system includes water distribution tank, sand filter tank, water distribution aeration slope, pond body, artificial aquatic grass belt, aquatic plants, floating bodies and sludge collection wells. In the process, the full absorption of carbon, nitrogen and phosphorus in the sewage and the respiration of the plant itself transport oxygen from the plant leaves to the roots, forming a micro-aerobic environment in the root zone, further stimulating the decomposition of organic matter and the growth of nitrifying bacteria, so as to achieve The main purpose of removing nutrients such as nitrogen and phosphorus in sewage is to increase the overall ornamental value of the pond.

Figure 200910068115

Description

A kind of ecological pond simulating system that is used for the breeding wastewater advanced treatment
Technical field
The invention belongs to field of agricultural environmental protection, relate to a kind of treatment technology of sewage, particularly livestock and poultry cultivation sewage is through needing to carry out the ecological pond simulating technology of advanced treatment after the anaerobic digestion.
Technical background
In the existing aquaculture wastewater treatment technology, after high density livestock and poultry cultivation sewage carried out anaerobic treatment merely, often CODcr can not fully degrade, nitrogen phosphorus can be enriched in the sewage, want qualified discharge, also need further do deep purifying, particularly removing can not be by anaerobic digestion and nitrogen and phosphorus that enrichment is got off.Conventional method is generally to adopt treatment technologies such as stabilization pond, oxidation ditch, but often there is the problem of aspects such as power consumption is big, working cost is high, management is loaded down with trivial details, investment cost is high, maintenance of equipment is frequent in ordinary method; If adopt artificial swamp to handle, though advantages such as less investment, unpowered operation are arranged, the mud that produces in the livestock and poultry anerobic sowage treating processes stops up matrix easily, general artificial swamp operation about 1 year, wastewater purifying efficiency will descend, and must upgrade matrix, causes overlapping investment.
At the characteristics that are rich in nitrogen phosphorus in the anaerobism water outlet, the ecological pond simulating Ecological Disposal technological facilities of application specific design, utilize the measures such as growth and breeding of anaerobism and generation conversion, algae and the plant of the aerobic short distance nitration that combines, microorganism, realization to nitrogen phosphorus in the water body and the residue carbon source effective absorption, transform and remove, thereby reach the deep purifying of nitrogenous phosphorus sewage is handled, satisfied farmland utilization demand and qualified discharge requirement.
Summary of the invention
But the invention provides a kind of any equipment, no energy consumption, simple a kind of ecological pond simulating system that is used for the breeding wastewater advanced treatment of long-time running of maintenance of need not.
A kind of ecological pond simulating system treatment process that is used for the breeding wastewater advanced treatment:
Livestock and poultry cultivation sewage through Anaerobic Digestion, enter the cloth tank by pipeline self and accumulate water distribution, sewage advances the sand filtration groove through the bottom perforated of cloth tank, the sewage haydite of storied placement, path stone, coarse sand and fine sand filtration of material from bottom to top in the sand filtration groove are removed the suspended substance that is suspended in the sewage;
Mode by up-flow arrives water distribution aeration slope again, thin layer sewage in this formation can contact fully with air, thereby reach the purpose of aeration aerating, through containing a large amount of ammonium nitrogens in the sewage behind the anaerobically fermenting, when to a certain degree short distance nitration effect can take place the nitric nitrogen that contains in by the sewage of aeration oxidation with part, thereby, reach the preliminary effect of denitrogenation with the nitrogen transformation nitrogen partly of enrichment;
Sewage carries out entering pool body after short distance purifies through water distribution aeration slope, body bottom, the pool is equipped with artificial pasture and water, there is intensive hole on artificial pasture and water surface, bubble and abundant surface-area, guaranteed that pasture and water are always uprightly floating in water, these artificial pasture and water provide fabulous attachment for microorganism, microorganism attached to artificial pasture and water surface changed through the generation, constantly thicken, formed the microorganic adhesion film at last, part carbon source of retaining in the sewage and nitrogen and phosphorus element are when flowing through ecological pond, organism fully contacts with microbial film and active sludge, in the generation of microorganism breeding conversion process, adsorbed by microorganism, degraded and precipitation, thus reach the purpose of further removal organism and denitrogenation dephosphorizing;
The water plant planting on water body top layer is on buoyancy aid in the pool, utilize waterplant in process of growth, to the abundant absorption of carbon nitrogen phosphorus in the sewage and the breathing of plant itself, oxygen is transported to root from plant leaf, form a little aerobic environment in the root district, further stimulate the decomposition of organic substance and the growth of nitrobacteria, thereby remove nitrogen in the sewage, the foster material of phosphorus.
A kind of ecological pond simulating system that is used for the breeding wastewater advanced treatment, it is characterized in that: this system comprises cloth tank, sand filtration groove, water distribution aeration slope, pool body, artificial pasture and water band, waterplant and buoyancy aid and mud collection well, sewage enters the cloth tank by pipeline self and accumulates water distribution, sewage advances the sand filtration groove through the bottom perforated of cloth tank, in the sand filtration groove from bottom to top storied placement filtering material haydite, path stone, coarse sand and fine sand, sewage arrives water distribution aeration slope by the mode of up-flow again;
Sewage carries out entering pool body after short distance purifies through water distribution aeration slope, and body bottom in the pool is equipped with artificial pasture and water, and there are intensive hole, bubble and abundant surface-area in artificial pasture and water surface, has guaranteed that pasture and water are always uprightly floating in water;
Mud impurity after being cleaned in the sewage inflow ecological pond simulating body water can be deposited in the bottom of ecological pond, and body bottom in the pool is the design that longshore current tilts, and makes mud finally be pooled to mud and collects well; Planting waterplant on the buoyancy aid on water body top layer in the pool.
Described a kind of water distribution aeration slope that is used for the ecological pond simulating system of breeding wastewater advanced treatment is a step type.
Effective processing through ecological pond simulating, the a small amount of nitrogen that is comprised in the sewage and a large amount of nitrogens and phosphorus are plain can effectively be removed, thereby satisfy water outlet requirement or higher standard that water outlet reaches China " livestock and poultry breeding industry pollutant emission standard (GB 18596-2001) ", water in the treating processes also can mix with certain proportion with underground water and is directly used in field irrigation, the recycle of giving full play to sewage resource is worth, effectively the conserve water resource.
In sum, ecological pond simulating is to have absorbed multiple sewage purification principle and the system that sets up, and the present invention has following advantage compared to prior art:
1. system utilizes the multistage natural drop of step, has realized the effective thin layer oxygenation of anaerobism water outlet; System for quoting artificial pasture and water and multiple technologies measures such as waterplant and buoyancy aid, strengthened the purification approach and the adaptability of system;
2. the soil removability of system is strong, has solved the discharging of anaerobic fermented liquid nature and can cause environmental pollution problems, has effectively removed a small amount of organic carbon source of being rich in the anaerobism water outlet and a large amount of pollutents such as nitrogen phosphorus;
3. cost of investment is low, and it all is conventional material except that artificial pasture and water that long service life, system are built needed material, and cost is lower, and easy to maintenance, and is simple;
4. at the bottom of the running cost, system's whole service process is that unpowered gravity flow transforms, and need not any treating plant, has working cost hardly;
5. wide accommodation is fit to all kinds of livestock and poultry farm of China and cultures the sub-district, satisfies the needs of extensively promoting;
Description of drawings
Fig. 1 is the front section view of ecological pond simulating system of the present invention.
Fig. 2 is the side sectional view of Fig. 1.
Fig. 3 is the vertical view of Fig. 1.
Wherein 1 cloth tank, 2 sand filtration grooves, 3 water distribution aeration slope, 4 waterplant, 5 anti-steam ooze that film, 6 empty buckets are climbed over the walls, 7 grass planting bricks, 8 geomembranes, 9 artificial pasture and water, 10 mud collection well, 11 ramped bottom surface.
Embodiment
Embodiment 1
A kind of ecological pond simulating system that is used for the breeding wastewater advanced treatment, comprise cloth tank 1, sand filtration groove 2, water distribution aeration slope 3, artificial pasture and water 9, waterplant and buoyancy aid 4, mud is collected well 10, ramped bottom surface 11 (side of water outlet is higher than an into side of water), grass planting brick 7, pool base fabric has artificial pasture and water 9, is fixed with 50 thick grass planting bricks 7, and whole bottom is covered with to prevent steaming and oozes film 5 simultaneously.
Embodiment 2
Enter cloth tank 1 through the livestock and poultry cultivation sewage after the anaerobic treatment through pipeline self and accumulate water distribution, sewage enters sand filtration groove 2 through the bottom perforated of cloth tank 1, sewage is by the haydite of storied placement in the sand filtration groove 2, the path stone, filtration of material such as coarse sand and fine sand, removed the suspended substance that is suspended in the sewage, mode by up-flow arrives step type water distribution aeration slope 3 again, thin layer sewage in this formation can contact fully with air, thereby reach the purpose of the oxygen oxygenation of exposing to the sun, sewage carries out entering pool body after short distance purifies through step type water distribution aeration slope 3, body bottom, the pool is equipped with artificial pasture and water 9, these artificial pasture and water 9 provide fabulous attachment for microorganism, microorganism attached to artificial pasture and water surface changed through the generation, constantly thicken, formed the microorganic adhesion film at last, flow into mud contamination precipitation after being cleaned in the water of ecological pond simulating in the bottom on the pool, finally be pooled to mud through ramped bottom surface 11 and collect well 10, extract out when being accumulated to when a certain amount of available submersible sewage pump.The waterplant on water body top layer is planted on buoyancy aid for 4 kinds in the pool, utilize waterplant in process of growth, to the abundant absorption of carbon nitrogen phosphorus in the sewage and the breathing of plant itself, oxygen is transported to root from plant leaf, form a little aerobic environment in the root district, further stimulate the decomposition of organic substance and the growth of nitrobacteria, thereby reach the main purpose of removing nutritive substances such as nitrogen, phosphorus in the sewage.

Claims (3)

1.一种用于养殖废水深度处理的仿生态塘系统的处理方法,其特征在于:1. A processing method for an imitation ecological pond system for advanced treatment of aquaculture wastewater, characterized in that: 经过厌氧消化处理的畜禽养殖污水,通过管道自流进入布水槽进行蓄积布水,污水经布水槽的底部穿孔进砂滤槽,污水经砂滤槽中自下而上分层排布的陶粒、小径石子、粗砂和细砂材料过滤,去除悬浮在污水中的悬浮物;The livestock and poultry breeding sewage treated by anaerobic digestion flows into the water distribution tank through the pipeline to accumulate and distribute water. The sewage is perforated into the sand filter tank through the bottom of the water distribution tank. Filter materials such as grains, small diameter stones, coarse sand and fine sand to remove suspended solids suspended in sewage; 再通过升流的方式到达布水曝气坡,在此形成的薄层污水会与空气进行充分的接触,从而达到曝气充氧的目的,经过厌氧发酵后的污水中含有大量的铵态氮,与部分被曝气氧化的污水中含有的硝态氮会发生一定程度的短程硝化作用,从而将富集的氮素转化部分的氮气,达到脱氮的初步效果;Then reach the water distribution aeration slope by upflow, the thin layer of sewage formed here will fully contact with the air, so as to achieve the purpose of aeration and oxygenation. The sewage after anaerobic fermentation contains a large amount of ammonium Nitrogen, and part of the nitrate nitrogen contained in the aerated and oxidized sewage will undergo a certain degree of short-range nitrification, thereby converting the enriched nitrogen into part of the nitrogen to achieve the initial effect of denitrification; 污水经过布水曝气坡进行短程净化后进入塘体,塘体底部安装有人工水草,人工水草表面有密集的孔隙、气泡和丰富的表面积,保证了水草在水中始终为直立漂浮,这些人工水草为微生物提供了极好的附着体,附着在人工水草表面的微生物经过世代变化,不断增厚,最后形成了微生物附着膜,污水中留存的部分碳源和氮素及磷素在流过生态塘时,有机物与生物膜及活性污泥充分接触,在微生物的世代繁殖转化过程中,被微生物吸附、降解和沉淀,从而达到进一步去除有机物和脱氮除磷的目的;The sewage enters the pond body after short-range purification through the water distribution and aeration slope. Artificial aquatic plants are installed at the bottom of the pond body. The surface of the artificial aquatic plants has dense pores, air bubbles and rich surface area, which ensures that the aquatic plants are always floating upright in the water. It provides excellent attachments for microorganisms. The microorganisms attached to the surface of artificial aquatic plants undergo changes from generation to generation and continue to thicken. Finally, a microbial adhesion film is formed. Part of the carbon source, nitrogen and phosphorus retained in the sewage are flowing through the ecological pond. When the organic matter is in full contact with the biofilm and activated sludge, it is adsorbed, degraded and precipitated by the microorganisms in the process of microbial reproduction and transformation, so as to achieve the purpose of further removing organic matter and denitrification and phosphorus removal; 塘内水体表层的浮体上种植着水生植物,利用水生植物在生长过程中,对污水中碳氮磷的充分吸收和植物本身的呼吸,将氧气从植物叶片输送到根部,在根区形成一个微好氧环境,进一步刺激有机物质的分解和硝化细菌的生长,从而去除污水中氮、磷。Aquatic plants are planted on the floating body on the surface of the water body in the pond. During the growth process of the aquatic plants, the carbon, nitrogen and phosphorus in the sewage are fully absorbed and the plants themselves breathe, and the oxygen is transported from the leaves of the plants to the roots, forming a micro-well in the root zone. The oxygen environment further stimulates the decomposition of organic matter and the growth of nitrifying bacteria, thereby removing nitrogen and phosphorus in sewage. 2.一种用于权利要求1所述一种用于养殖废水深度处理的仿生态塘系统,其特征在于:该系统包括布水槽、砂滤槽、布水曝气坡、塘体、人工水草带、水生植物及浮体和污泥收集井,污水通过管道自流进入布水槽进行蓄积布水,污水经布水槽的底部穿孔进砂滤槽,砂滤槽中自下而上分层排布着过滤材料陶粒、小径石子、粗砂和细砂,污水再通过升流的方式到达布水曝气坡;2. A kind of imitation ecological pond system that is used for the advanced treatment of aquaculture wastewater described in claim 1, is characterized in that: the system includes water distribution tank, sand filter tank, water distribution aeration slope, pond body, artificial aquatic plants belt, aquatic plants, floating bodies and sludge collection wells, the sewage flows into the water distribution tank through the pipeline for accumulation and water distribution, and the sewage is perforated into the sand filter tank through the bottom of the water distribution tank, and the sand filter tank is arranged in layers from bottom to top. The materials are ceramsite, small path stones, coarse sand and fine sand, and the sewage reaches the water distribution and aeration slope through upflow; 污水经过布水曝气坡进行短程净化后进入塘体,塘体底部安装有人工水草,人工水草表面有密集的孔隙、气泡和丰富的表面积,保证了水草在水中始终为直立漂浮;The sewage enters the pond body after short-range purification through the water distribution aeration slope. Artificial aquatic plants are installed at the bottom of the pond body. The surface of the artificial aquatic plants has dense pores, air bubbles and rich surface area, which ensures that the aquatic plants are always floating upright in the water; 污水流入仿生态塘体水中,被净化后的污泥杂质会沉淀在生态塘的底部,塘体底部为沿流倾斜的设计,使污泥最终汇集到污泥收集井;塘内水体表层的浮体上种植着水生植物。Sewage flows into the water of the imitation ecological pond, and the purified sludge and impurities will settle at the bottom of the ecological pond. The bottom of the pond is designed to be inclined along the flow, so that the sludge will eventually collect into the sludge collection well; on the floating body on the surface of the water body in the pond Aquatic plants are planted. 3.如权利要求2所述的一种用于养殖废水深度处理的仿生态塘系统,其特征在于:布水曝气坡为台阶式。3. A biomimetic pond system for advanced treatment of aquaculture wastewater as claimed in claim 2, characterized in that: the water distribution aeration slope is stepped.
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CN102764530B (en) * 2012-06-07 2015-09-02 伍洪少 Environmental purification beautifies sewage comprehensively method
CN104030446A (en) * 2013-03-08 2014-09-10 昆山瀚潮环保科技有限公司 Combined ecological floating bed restoration system
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