CN2844110Y

CN2844110Y - Artificial wet-land sewage-water treater with quartz sand

Info

Publication number: CN2844110Y
Application number: CNU200520143199XU
Authority: CN
Inventors: 解庆林; 白少元; 李艳红
Original assignee: Guilin University of Technology
Current assignee: Guilin University of Technology
Priority date: 2005-11-18
Filing date: 2005-11-18
Publication date: 2006-12-06
Anticipated expiration: 2015-11-18

Abstract

The utility model discloses an artificial wet-land sewage-water treatment equipment with quartz sand which adopts vertical composite stream artificial wet-land. A baffle wall (3) is equipped at the middle-upper part of the wet-land pool (7). An admitting pipe (1) is equipped at the upper part of one side of the baffle wall (3). A discharging pipe (5) is equipped at the upper part of the other side of the baffle wall (3). The order of the filling elements in the pool is as follows: the bottom is equipped with the cobble filling element (9); the upper part of the bottom is equipped with the arenaceous quartz filling element (8); the top is equipped with the quartz fine sand layer (2); plants (4) are planted on the quartz fine sand layer (2); the plants (4) form a multiple-kind plants bed and most plants are cannas; elephant grass, acorus calamus and straw are planted mixedly; the root system of plant (6) penetrates into the cobble layer (9)of the bottom. The utility model is provided with anti-impacting load-carrying capacity, convenient subsequent maintenance and operation, and simple investment and construction. The artificial wet-land sewage-water treatment equipment with quartz sand can obtain the purpose of the advanced treatment for the water outlet of the municipal sewage plant with effect. The artificial wet-land sewage-water treatment equipment with quartz sand is also provided with the value of beautifying the landscape without secondary pollution.

Description

A kind of quartz sand using artificial wet land waste disposal plant

Technical field

The utility model relates to a kind of waste disposal plant, and particularly quartz sand using artificial wet land advanced treatment municipal sewage plant goes out water treatment device.

Background technology

Because the shortage of water resources, both at home and abroad more and more widely to the research of sewage recycling process.The reusing sewage technology mainly contains coagulating sedimentation, advanced oxidation, disinfection by ultraviolet light, charcoal absorption and membrane filtration technique etc. at present, but because the use of coagulating agent in traditional coagulation sedimentation method cause secondary pollution easily, and treatment effect is general; And advanced oxidation, disinfection by ultraviolet light, charcoal absorption and membrane filtration technique etc. are higher owing to processing cost, and the running maintenance complexity, are difficult to be promoted the use of widely.

Summary of the invention

It is main body filler and the artificial wet land treating system of planting preferred four kinds of wetland plants carry out advanced treatment to effluent of municipal sewage plant waste disposal plant with quartz sand that the purpose of this utility model provides a kind of employing.

The utility model is achieved in that sets up an artificial swamp pond, and there is a partition wall middle and upper part, wetland pond, and a water inlet pipe is arranged at the top, one side of partition wall, and a rising pipe is arranged at the other side top of partition wall.Filling filler in the pond, the filler fill order is: bottom filling particle diameter is that the pebbles of 40～80mm is crossed water layer thickness 10～30cm, is that particle diameter is the quartz sand filler of 4～8mm on it, and thickness is 50～80cm, the quartzy fine sand layer that particle diameter is 1～2mm is filled out in the shop, top, and thickness is 10～20cm.Plant above the quartzy fine sand layer plant is arranged, various plants bed based on Canna generalis Bailey, between mix with napier grass, calamus and hay grass and to take plantation, planting density be 38～40 strains/square metre, Canna generalis Bailey: napier grass: calamus: its planting proportion of hay grass is 4～8: 1～2: 4～8: 1～2; The root system of plant is deeply to bottom pebbles layer.

Fluidised form adopts vertical compound flow constructed wetland, and to the water inlet of stream cell surface, current direction is flowed to bottom pebbles water conservancy diversion layer, and then flows into the upward flow unit down through the main body packing layer current by down, and current are discharged by its top.

The utlity model has that treatment effect is good, processing efficiency is high, the investment working cost is low, convenient management, the shock resistance compound ability is strong, stable and have advantage such as aesthetic value, adopt the plant bed vertical combined-flow simulation artificial wet land treating system of Canna generalis Bailey that sewage disposal plant effluent is carried out advanced treatment, can remove pollutents such as nitrogen phosphorus effectively, thereby prevent the eutrophication of water body effectively, it is fully feasible that its water outlet is used for the view reuse.Reach " urban sewage reutilization water for scenic environment use water quality " (GB/T 18921-2002) standard through main water-quality guideline such as ammonia nitrogen, total phosphorus, COD and BOD in the artificial swamp processing back water outlet.

Description of drawings

Fig. 1 simulates the constructed wetland device synoptic diagram for the utility model embodiment.

Fig. 2 is the treatment effect of the utility model embodiment to COD.

Fig. 3 is the treatment effect of the utility model embodiment to ammonia nitrogen.

Fig. 4 is the treatment effect of the utility model embodiment to total phosphorus.

Fig. 5 is the treatment effect of the utility model embodiment to BOD.

Mark among Fig. 1: 1. water inlet pipe, quartzy fine sand layer 2., 3. partition wall, 4. wetland plant, 5. rising pipe, 6. root system of plant, 7. wetland pond, 8. quartz sand filler, 9. pebbles filler.

Embodiment

As shown in Figure 1, artificial swamp pond (7), surface size is 1.0m * 0.5m, highly is 1.0m, and the filler porosity is 40%, and useful volume is 200L, and residence time 24h, hydraulic load are 0.4m ³/ (m ²D).There is a partition wall middle and upper part, wetland pond, and wetland pond (7) and partition wall (3) are made by plastic plate; One water inlet pipe (1) is arranged at the top, one side of partition wall (3), and a rising pipe (5) is arranged at the other side top of partition wall (3).Filling filler in the pond, the filler general thickness is 100cm, the filler fill order is: bottom filling particle diameter is that the pebbles filler (9) of 40～80mm is crossed water layer thickness 10cm, be that particle diameter is zeolite and the Wingdale mixed fillers (8) of 4～8mm on it, volume ratio is 1: 1, thickness is 80cm, and the quartzy fine sand layer (2) that particle diameter is 1～2mm is filled out in the shop, top, and thickness is 10cm.Planting above the quartzy fine sand layer (2) has plant (4), based on the various plants bed of Canna generalis Bailey, and with napier grass, calamus with the hay grass is mixed takes plantation, Canna generalis Bailey, napier grass, calamus, the hay grass is planted 8,2,8,2 respectively; Root system of plant (6) is deeply to bottom pebbles layer (9).

Adopt vertical compound flow constructed wetland, to the water inlet of stream cell surface, current direction is flowed to bottom pebbles water conservancy diversion layer, and then flows into the upward flow unit down through the main body packing layer current by down, and current are discharged by its top.

Effluent quality after raw water quality and process native system are handled sees Table 1.

Table 1 sewage quality table

Water-quality guideline	pH	CODcr(mg/L)	Ammonia nitrogen (mg/L)	Total phosphorus (mg/L)	BOD ₅(mg/L)
Water-quality guideline	pH	CODcr(mg/L)	Ammonia nitrogen (mg/L)	Total phosphorus (mg/L)	BOD ₅(mg/L)	Water inlet water outlet national standard ^*	6.8～7.0 6.5～7.5 6～9	14.40～32.40 6.24～18.82 20	1.37～18.99 0.01～4.68 4	0.30～3.85 0.01～0.45 0.5	2.34～9.93 0.13～2.80 5

* be " urban sewage reutilization water for scenic environment use water quality " (GB/T 18921-2002) standard

Adopt 24 hours continuous water intake modes, intaking is secondary effluent of municipal sewage plant.The residence time is 24h, and hydraulic load is 0.4m ³/ (m ²D).Experimental result through system's steady running in continuous 9 months shows: this quartz sand simulation artificial wet land treating system can effectively be removed ammonia nitrogen, total phosphorus, COD and BOD, and treatment effect is seen Fig. 2, Fig. 3, Fig. 4, Fig. 5 respectively.

During 9 months steady running, when the content of COD, ammonia nitrogen, total phosphorus and BOD is respectively 14.40～32.40mg/L, 1.37～18.99mg/L, 0.30～3.85mg/L and 2.34～9.93mg/L in the water inlet, handle that the every Pollutant levels in back are reduced to 6.24～18.82 respectively, 0.01～4.68mg/L, 0.01～0.45mg/L and 0.13～2.80mg/L, leading indicator satisfies " urban sewage reutilization water for scenic environment use water quality " (GB/T 18921-2002) standard-required.

Reach " urban sewage reutilization water for scenic environment use water quality " (GB/T 18921-2002) standard through main water-quality guideline such as ammonia nitrogen, total phosphorus, COD and BOD in the artificial swamp processing back water outlet.

Claims

1. quartz sand using artificial wet land waste disposal plant, comprise wetland pond (7), partition wall (3), water inlet pipe (1), rising pipe (5), it is characterized in that adopting vertical compound flow constructed wetland, there is a partition wall (3) middle and upper part, wetland pond (7), one water inlet pipe (1) is arranged at the top, one side of partition wall (3), and a rising pipe (5) is arranged at the other side top of partition wall (3); Filling filler in the pond, the filler fill order is: pebbles filler (9) is filled in the bottom, is quartz sand filler (8) on it, and rockfill English fine sand layer (2) shop, top; Planting above the quartzy fine sand layer (2) has plant (4), and plant (4) is based on the various plants bed of Canna generalis Bailey, takes plantation so that napier grass, calamus and hay grass are mixed; Root system of plant (6) is deeply to pebbles layer (9).