CN104556564B - A kind of multimedium artificial swamp is sewage purification bed - Google Patents
A kind of multimedium artificial swamp is sewage purification bed Download PDFInfo
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- 238000000746 purification Methods 0.000 title claims abstract description 78
- 239000010865 sewage Substances 0.000 title claims abstract description 53
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 63
- 239000002131 composite material Substances 0.000 claims abstract description 60
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 29
- 238000005192 partition Methods 0.000 claims abstract description 28
- 235000019738 Limestone Nutrition 0.000 claims abstract description 24
- 239000006028 limestone Substances 0.000 claims abstract description 24
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229910021536 Zeolite Inorganic materials 0.000 claims abstract description 15
- 239000002689 soil Substances 0.000 claims abstract description 15
- 239000002023 wood Substances 0.000 claims abstract description 15
- 239000010457 zeolite Substances 0.000 claims abstract description 15
- 239000004927 clay Substances 0.000 claims abstract description 14
- 239000003818 cinder Substances 0.000 claims abstract description 13
- 229910052742 iron Inorganic materials 0.000 claims abstract description 13
- 239000002245 particle Substances 0.000 claims description 17
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 9
- 229910052698 phosphorus Inorganic materials 0.000 claims description 9
- 239000011574 phosphorus Substances 0.000 claims description 9
- 230000000694 effects Effects 0.000 claims description 6
- 239000004744 fabric Substances 0.000 claims 3
- 238000012856 packing Methods 0.000 claims 3
- 239000007921 spray Substances 0.000 claims 3
- 238000009954 braiding Methods 0.000 claims 2
- 230000008595 infiltration Effects 0.000 claims 2
- 238000001764 infiltration Methods 0.000 claims 2
- 238000007654 immersion Methods 0.000 claims 1
- 108091006146 Channels Proteins 0.000 abstract description 15
- 239000003344 environmental pollutant Substances 0.000 abstract description 10
- 231100000719 pollutant Toxicity 0.000 abstract description 10
- 102000010637 Aquaporins Human genes 0.000 abstract description 2
- 108010063290 Aquaporins Proteins 0.000 abstract description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- 241000196324 Embryophyta Species 0.000 description 5
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 239000002957 persistent organic pollutant Substances 0.000 description 3
- 239000003245 coal Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 230000007306 turnover Effects 0.000 description 2
- 241001465754 Metazoa Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000009360 aquaculture Methods 0.000 description 1
- 244000144974 aquaculture Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000000149 chemical water pollutant Substances 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000008635 plant growth Effects 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/70—Treatment of water, waste water, or sewage by reduction
- C02F1/705—Reduction by metals
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Biological Treatment Of Waste Water (AREA)
- Water Treatment By Sorption (AREA)
Abstract
本发明公开了一种多介质人工湿地污水净化床，属于水处理技术领域。本发明包括进水管、布水渠、砾石过滤层、过水花墙、煤渣腐木铁屑复合净化层、隔墙一、改性累托石陶粒复合净化层、隔墙二、多孔混凝土沸石复合净化层、碎石灰石层、隔墙三、粘土与种植土复合层、混凝土防渗层、集水渠、集水管道、高度可调节出水口、出水管。粘土与种植土复合层位于装置最上层，粘土与种植土复合层下面是碎石灰石层，碎石灰石层下面从过水花墙后依次是煤渣腐木铁屑复合净化层、改性累托石陶粒复合净化层、多孔混凝土沸石复合净化层，最下面是防渗层。本发明利用多种介质的优化组合实现对污水中污染物质的高效净化，装置设计灵活，适应性强、处理效率高。
The invention discloses a multi-media artificial wetland sewage purification bed, which belongs to the technical field of water treatment. The invention includes water inlet pipe, water distribution channel, gravel filter layer, water splash wall, cinder rotten wood and iron filings composite purification layer, partition wall one, modified rectorite ceramsite composite purification layer, partition wall two, porous concrete zeolite composite purification layer Layer, crushed limestone layer, partition wall III, composite layer of clay and planting soil, concrete anti-seepage layer, water collection channel, water collection pipe, height-adjustable water outlet, and water outlet pipe. The composite layer of clay and planting soil is located at the top of the device. Below the composite layer of clay and planting soil is a layer of crushed limestone. Under the layer of crushed limestone is a composite purification layer of cinder, rotting wood and iron filings, and modified rectorite ceramsite. Composite purification layer, porous concrete zeolite composite purification layer, and the bottom is the anti-seepage layer. The invention utilizes the optimal combination of various media to realize efficient purification of pollutants in sewage, and has flexible device design, strong adaptability and high treatment efficiency.
Description
技术领域 technical field
本发明属于水处理装置技术领域，具体涉及人工湿地处理净化污水技术。 The invention belongs to the technical field of water treatment devices, and in particular relates to the technology of artificial wetland treatment and purification of sewage.
背景技术 Background technique
人工湿地作为一种生态处理技术，自上个世纪五六十年代被生态学家发现其具有净化水质功能后得到迅速发展，到八十年代已经成为一种污水处理的新技术。目前许多国家用人工湿地处理各类污水，包括城市生活污水、工业污水、暴雨径流、农业面源污染污水、垃圾渗滤液、受污染河流湖泊等地表水、养殖污水、污泥脱出水等。人工湿地是一个由动植物、微生物、介质等构成的水生生态系统，通过各组成部分间相互协同作用，使湿地系统稳定运转，并具有较优的净化能力。目前人工湿地已经作为一种低投入，高效率，易维护的生态工程设施在世界各地广泛地应用。对氮、磷元素的去除是人工湿地系统最主要的功能之一。近年来，关于氮、磷元素在人工湿地系统中去除的相关研究在国内外得到了蓬勃的开展。如专利号为：201410217395.O，专利说明书中介绍了低污染水脱氮的人工湿地装置及其处理方法。 As an ecological treatment technology, constructed wetland has developed rapidly since it was discovered by ecologists in the 1950s and 1960s that it has the function of purifying water quality. By the 1980s, it had become a new technology for sewage treatment. At present, many countries use constructed wetlands to treat various types of sewage, including urban domestic sewage, industrial sewage, storm runoff, agricultural non-point source polluted sewage, landfill leachate, surface water such as polluted rivers and lakes, aquaculture sewage, and sludge dewatering. Constructed wetland is an aquatic ecosystem composed of animals, plants, microorganisms, media, etc. Through the synergy between various components, the wetland system can operate stably and have better purification capabilities. At present, artificial wetlands have been widely used all over the world as a low-input, high-efficiency, and easy-to-maintain ecological engineering facility. The removal of nitrogen and phosphorus is one of the most important functions of the constructed wetland system. In recent years, related research on the removal of nitrogen and phosphorus elements in constructed wetland systems has been vigorously carried out at home and abroad. For example, the patent number is: 201410217395.O, and the patent specification introduces a constructed wetland device for denitrification of low-pollution water and its treatment method.
目前常见的人工湿地处理装置及其缺点如下： The current common constructed wetland treatment devices and their disadvantages are as follows:
（1）表面流人工湿地。装置由土壤、水生植物等组成。污水从介质上流过，经过植物吸收、附着微生物降解得到净化。缺点是处理效率低、卫生条件差、易受外界运行条件干扰。 (1) Surface flow constructed wetlands. The device is composed of soil, aquatic plants and so on. Sewage flows through the medium and is purified by plant absorption and degradation by attached microorganisms. Disadvantages are low processing efficiency, poor sanitary conditions, and easy to be disturbed by external operating conditions.
（2）潜流人工湿地。潜流人工湿地包括水平流人工湿地和垂直流人工湿地，污水由介质内部流过，改善了卫生条件、加强了运行稳定性能、提高了处理效率。缺点是污水停留时间、水位不好控制，应对污水水质变化变化能力差。 (2) Underflow artificial wetland. Subsurface flow constructed wetlands include horizontal flow constructed wetlands and vertical flow constructed wetlands. Sewage flows through the medium, which improves sanitary conditions, enhances operational stability, and improves treatment efficiency. The disadvantage is that the sewage residence time and water level are not well controlled, and the ability to respond to changes in sewage water quality is poor.
（3）传统复合流人工湿地。复合流人工湿地一般指表面流人工湿地和潜流人工湿地进行组合，还有潜流人工湿地间的平流人工湿地和垂直流人工湿地进行组合。污水经过复合流人工湿地，其污染物质的处理效率比单一湿地有了提高，但是复合流人工湿地基建投资较高、对外界运行条件要求较高、运行管理麻烦。 (3) Traditional compound flow artificial wetland. Compound flow constructed wetlands generally refer to the combination of surface flow constructed wetlands and subsurface flow constructed wetlands, as well as the combination of advection flow constructed wetlands and vertical flow constructed wetlands between subsurface flow constructed wetlands. When sewage passes through the composite flow constructed wetland, the treatment efficiency of pollutants is improved compared with that of a single wetland. However, the composite flow constructed wetland has higher infrastructure investment, higher requirements for external operating conditions, and troublesome operation and management.
发明内容 Contents of the invention
本发明的目的在于提高人工湿地处理污染物的效率，增强人工湿地灵活应对污水水质变化的能力。本净化床中按一定顺序排列的介质复合净化层，能增加去除污染物的种类并且提高对污染物的处理效率。装置中高度可调节的出水口可通过调节出水高度，控制污水在整个净化床内的水位，也就是调节在碎石灰石层中的淹没深度，从而控制总磷的净化效果。本净化床可针对污水进水水质进行灵活调节，处理效率高、适应性强。 The purpose of the invention is to improve the efficiency of the constructed wetland in treating pollutants, and enhance the ability of the constructed wetland to respond flexibly to changes in sewage water quality. The media composite purification layers arranged in a certain order in the purification bed can increase the types of pollutants to be removed and improve the treatment efficiency of pollutants. The height-adjustable water outlet in the device can control the water level of sewage in the entire purification bed by adjusting the water outlet height, that is, adjust the submersion depth in the crushed limestone layer, so as to control the purification effect of total phosphorus. The purification bed can be flexibly adjusted according to the quality of sewage influent, and has high treatment efficiency and strong adaptability.
为了实现上述目的，本发明所采用的技术方案是： In order to achieve the above object, the technical solution adopted in the present invention is:
一种多介质人工湿地污水净化床，其特征在于：包括进水管、布水渠、砾石过滤层、过水花墙、煤渣腐木铁屑复合净化层、隔墙一、改性累托石陶粒复合净化层、隔墙二、多孔混凝土沸石复合净化层、碎石灰石层、隔墙三、粘土与种植土复合层、混凝土防渗层、集水渠、集水管道、高度可调节出水口、出水管。所述砾石过滤层位于布水渠底部；过水花墙位于布水渠后；粘土与种植土复合层在装置最上面的位置，下面紧接着是碎石灰石层；碎石灰石层下面从过水花墙后依次是煤渣腐木铁屑复合净化层、隔墙一、改性累托石陶粒复合净化层、隔墙二、多孔混凝土沸石复合净化层；隔墙三位于改性累托石陶粒复合净化层中间位置，向上穿过碎石灰石层和粘土与种植土复合层；装置最下面是防渗层；集水管道接高度可调节出水口，高度可调节出水口位于集水渠的中间位置。 A multi-media artificial wetland sewage purification bed, characterized in that it includes a water inlet pipe, a water distribution channel, a gravel filter layer, a water-passing flower wall, a composite purification layer of cinder rot, wood and iron filings, a partition wall, and a modified rectorite ceramsite composite Purification layer, partition wall 2, porous concrete zeolite composite purification layer, crushed limestone layer, partition wall 3, composite layer of clay and planting soil, concrete anti-seepage layer, water collection channel, water collection pipe, height-adjustable water outlet, water outlet pipe. The gravel filter layer is located at the bottom of the water distribution channel; the water flower wall is located behind the water distribution channel; the clay and planting soil composite layer is at the top of the device, followed by the crushed limestone layer; the crushed limestone layer is followed by the water flower wall. Composite purification layer of coal slag, rotting wood and iron chips, partition wall 1, modified rectorite ceramsite composite purification layer, partition wall 2, porous concrete zeolite composite purification layer; partition wall 3 is located in the middle of the modified rectorite ceramsite composite purification layer position, passing through the crushed limestone layer and the composite layer of clay and planting soil; the bottom of the device is the anti-seepage layer; the water collection pipe is connected to the height-adjustable water outlet, and the height-adjustable water outlet is located in the middle of the water collection channel.
其中所述的砾石过滤层，砾石层厚度50-70cm，砾石粒径10-20mm，可去除污水中大部分的颗粒污染物。 In the gravel filter layer, the thickness of the gravel layer is 50-70cm, and the particle size of the gravel is 10-20mm, which can remove most of the particle pollutants in the sewage.
其中所述的煤渣腐木铁屑复合净化层，此层中煤渣粒径为5-15mm、腐木粒径为10-20mm、铁屑粒径为2-4mm，三者按照体积比70：29.5：0.5均匀混合，在此复合净化层，重点去除污水中的有机污染物，同时铁屑可以还原降解污水中的一些难降解的污染物物质，降低后续净化负荷。 The cinder rotted wood and iron filings composite purification layer mentioned therein, in this layer, the cinder particle size is 5-15mm, the rotten wood particle size is 10-20mm, and the iron filings particle size is 2-4mm, and the volume ratio of the three is 70:29.5 : 0.5 mixed evenly, in this composite purification layer, the focus is on removing organic pollutants in sewage, while iron filings can reduce and degrade some refractory pollutants in sewage, reducing the subsequent purification load.
其中所述的改性累托石陶粒复合净化层，此层中改性累托石粒径为4-8mm，陶粒粒径6-8mm；二者按照体积比2：1均匀混合。在此层中重点去除污水中的氨氮、总氮等污染物质，同时对有机污染物也有较好的去除能力。 In the modified rectorite ceramsite composite purification layer, the modified rectorite particle size in this layer is 4-8mm, and the ceramsite particle size is 6-8mm; the two are evenly mixed according to the volume ratio of 2:1. In this layer, the focus is on removing pollutants such as ammonia nitrogen and total nitrogen in the sewage, and it also has a good removal ability for organic pollutants.
其中所述的多孔混凝土沸石复合净化层，此层中多孔混凝土粒径为5-15mm，多孔混凝土内部孔隙率不小于40%，沸石粒径5-8mm；二者按照体积比1：1均匀混合。在此层中利用多孔混凝土的吸附性能和沸石的对氨氮净化能力进一步去除污水中的悬浮固体、氨氮等污染物质，确保出水达到相应的水质要求。 The porous concrete zeolite composite purification layer mentioned therein, the porous concrete particle size in this layer is 5-15mm, the internal porosity of the porous concrete is not less than 40%, and the zeolite particle size is 5-8mm; the two are uniformly mixed according to the volume ratio of 1:1 . In this layer, the adsorption performance of porous concrete and the purification ability of zeolite to ammonia nitrogen are used to further remove suspended solids, ammonia nitrogen and other pollutants in sewage, so as to ensure that the effluent meets the corresponding water quality requirements.
其中所述的高度可调节的出水口可通过调节出水高度，控制污水在整个净化床内的水位，也就是调节在碎石灰石层中的淹没深度，从而控制总磷的净化效果，即当污水中总磷含量高时，淹没深度高，污水和石灰石接触时间长，则总磷去除量大；相应的，若污水中总磷含量低时，则调节出水口高度，降低淹没深度，缩短污水与石灰石接触时间，减少石灰石的消耗，提升本净化床的使用寿命。 The height-adjustable water outlet described herein can control the water level of the sewage in the whole purification bed by adjusting the water outlet height, that is, adjust the submerged depth in the crushed limestone layer, thereby controlling the purification effect of total phosphorus, that is, when the sewage is in the When the total phosphorus content is high, the submerged depth is high, and the contact time between sewage and limestone is long, so the total phosphorus removal amount is large; correspondingly, if the total phosphorus content in sewage is low, adjust the height of the water outlet, reduce the submerged depth, and shorten the time between sewage and limestone. The contact time is shortened, the consumption of limestone is reduced, and the service life of the purification bed is improved.
其中所述的粘土与种植土的复合层，种植具有一定净化能力和景观效果的植物，在植物生长期可利用植物根系的净化作用，提升本净化床的总体净化效果。 The composite layer of clay and planting soil described therein is used to plant plants with certain purification ability and landscape effect, and the purification effect of plant roots can be used during the plant growth period to improve the overall purification effect of the purification bed.
本污水净化床在进行工作时，污水由进水管进入布水渠，通过砾石过滤层，然后经过过水花墙均匀进入煤渣腐木铁屑复合净化层，在此复合净化层内污水由下向上流动，经过碎石灰石层，翻过隔墙顶部进入改性累托石陶粒复合净化层。之后，污水在此翻过隔墙顶部进入多孔混凝土沸石复合净化层，经过此复合净化层的处理，净化后的污水由给水管道收集后通过高度可调节的出水口进入集水渠，最终通过出水管排放。 When the sewage purification bed is working, the sewage enters the water distribution channel from the water inlet pipe, passes through the gravel filter layer, and then passes through the water flower wall and evenly enters the composite purification layer of cinder, rotting wood and iron chips, where the sewage flows from bottom to top in the composite purification layer. Pass through the crushed limestone layer, turn over the top of the partition wall and enter the modified rectorite ceramsite composite purification layer. After that, the sewage turns over the top of the partition wall and enters the porous concrete zeolite composite purification layer. After being treated by this composite purification layer, the purified sewage is collected by the water supply pipeline and enters the water collection channel through the height-adjustable outlet, and finally passes through the outlet pipe. emission.
本发明的有益效果是，污水中的有机污染物通过多介质复合净化层可以得到有效地去除；净化床可以灵活的适应污水水质的变化。本发明利用多种介质的优化组合实现对污水中污染物质的高效净化，装置设计灵活，适应性强、处理效率高。 The beneficial effect of the invention is that the organic pollutants in the sewage can be effectively removed through the multi-media composite purification layer; the purification bed can flexibly adapt to the change of sewage water quality. The invention utilizes the optimized combination of various media to realize efficient purification of pollutants in sewage, and has flexible device design, strong adaptability and high treatment efficiency.
附图说明 Description of drawings
图1为本发明的结构示意图。 Fig. 1 is a structural schematic diagram of the present invention.
图中，1-进水管，2-布水渠，3-砾石过滤层，4-过水花墙，5-煤渣腐木铁屑复合净化层，6-隔墙一，7-改性累托石陶粒复合净化层，8-隔墙二，9-多孔混凝土沸石复合净化层，10-碎石灰石层，11-隔墙三，12-粘土与种植土复合层，13-混凝土防渗层，14-集水渠，15-集水管道，16-高度可调节出水口，17-出水管。 In the figure, 1-water inlet pipe, 2-distribution channel, 3-gravel filter layer, 4-water flower wall, 5-composite purification layer of coal slag, rotting wood and iron filings, 6-partition wall 1, 7-modified rector stone pottery Particle composite purification layer, 8-partition wall two, 9-porous concrete zeolite composite purification layer, 10-crushed limestone layer, 11-partition wall three, 12-clay and planting soil composite layer, 13-concrete anti-seepage layer, 14- Water collecting channel, 15-water collecting pipe, 16-height adjustable water outlet, 17-water outlet pipe.
具体实施方式 detailed description
如图1所示，本装置包括进水管1、布水渠2、砾石过滤层3、过水花墙4、煤渣腐木铁屑复合净化层5、隔墙一（6）、改性累托石陶粒复合净化层7、隔墙二（8）、多孔混凝土沸石复合净化层9、碎石灰石层10、隔墙三（11）、粘土与种植土复合层12、混凝土防渗层13、集水渠14、集水管道15、高度可调节出水口16、出水管17；所述砾石过滤层3位于布水渠2底部；过水花墙4位于布水渠2后；粘土与种植土复合层12在装置最上面的位置，下面紧接着是碎石灰石层10；碎石灰石层10下面从过水花墙4后依次是煤渣腐木铁屑复合净化层5、隔墙16、改性累托石陶粒复合净化层7、隔墙二（8）、多孔混凝土沸石复合净化层9；隔墙三（11）位于改性累托石陶粒复合净化层7中间位置，向上穿过碎石灰石层10和粘土与种植土复合层12；装置最下面是混凝土防渗层13；集水管道15接高度可调节出水口16，高度可调节出水口16位于集水渠14的中间位置。 As shown in Figure 1, the device includes a water inlet pipe 1, a water distribution channel 2, a gravel filter layer 3, a water flower wall 4, a composite purification layer 5 of cinder rot, wood and iron filings, a partition wall (6), modified rector stone pottery Particle composite purification layer 7, partition wall 2 (8), porous concrete zeolite composite purification layer 9, crushed limestone layer 10, partition wall 3 (11), clay and planting soil composite layer 12, concrete anti-seepage layer 13, water collection channel 14 , water collection pipe 15, height-adjustable water outlet 16, water outlet pipe 17; the gravel filter layer 3 is located at the bottom of the water distribution channel 2; the water flower wall 4 is located behind the water distribution channel 2; the composite layer 12 of clay and planting soil is on the top of the device The following is the crushed limestone layer 10; the bottom of the crushed limestone layer 10 is followed by the composite purification layer 5 of cinder, rotting wood and iron filings, the partition wall 16, and the composite purification layer 7 of modified rectorite ceramsite , partition wall two (8), porous concrete zeolite composite purification layer 9; partition wall three (11) is located in the middle of the modified rectorite ceramsite composite purification layer 7, and passes through the crushed limestone layer 10 upwards and compounded with clay and planting soil Layer 12; the lowest part of the device is a concrete anti-seepage layer 13;
本污水净化床在进行工作时，生活污水由进水管进入布水渠，通过砾石过滤层，然后经过过水花墙均匀进入煤渣腐木铁屑复合净化层，在此复合净化层内污水由下向上流动，经过碎石灰石层，翻过隔墙顶部进入改性累托石陶粒复合净化层。之后，污水在此翻过隔墙顶部进入多孔混凝土沸石复合净化层，经过此复合净化层的处理，净化后的污水由给水管道收集后通过高度可调节的出水口进入集水渠，最终通过出水管排放。本人工湿地净化床设计负荷大于0.08m3/m2?d；生活污水经过此多介质净化床，污水COD、氨氮和总磷的去除效率分别大于90%，80%和75%。 When the sewage purification bed is working, the domestic sewage enters the distribution channel from the water inlet pipe, passes through the gravel filter layer, and then passes through the water wall and evenly enters the composite purification layer of cinder, rotting wood and iron chips, where the sewage flows from bottom to top in the composite purification layer , pass through the crushed limestone layer, turn over the top of the partition wall and enter the modified rectorite ceramsite composite purification layer. After that, the sewage turns over the top of the partition wall and enters the porous concrete zeolite composite purification layer. After being treated by this composite purification layer, the purified sewage is collected by the water supply pipeline and enters the water collection channel through the height-adjustable outlet, and finally passes through the outlet pipe. emission. The design load of the constructed wetland purification bed is greater than 0.08m 3 /m 2 ?d; domestic sewage passes through the multi-media purification bed, and the removal efficiency of sewage COD, ammonia nitrogen and total phosphorus is greater than 90%, 80% and 75% respectively.
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