CN203159398U

CN203159398U - Livestock breeding wastewater treatment device

Info

Publication number: CN203159398U
Application number: CN 201320146730
Authority: CN
Inventors: 黎琼华; 黎红安; 沈磊; 黄国成
Original assignee: XIAMEN LVDONGLI ENVIRONMENTAL ENGINEERING Co Ltd
Current assignee: XIAMEN LVDONGLI ENVIRONMENTAL ENGINEERING Co Ltd
Priority date: 2013-03-28
Filing date: 2013-03-28
Publication date: 2013-08-28
Anticipated expiration: 2023-03-28

Abstract

The utility model discloses a livestock breeding wastewater treatment device. The livestock breeding wastewater treatment device is characterized by comprising a collecting basin, a solid-liquid separator, a methane tank, an aerobic tank, a facultative tank, an MBR (membrane bioreactor) tank, a sludge settling tank an a sludge treatment system which are connected in sequence through a pipeline, wherein aeration systems are arranged in the aerobic tank, the facultative tank and the MBR tank, at least one membrane assembly is arranged in the MBR tank, and the membrane assembly is connected with a water production pipeline and a water production pump. By adopting the technical scheme, the livestock breeding wastewater treatment device disclosed by the utility model can meet the emission standards of Pollutant Discharge Standards of Livestock Breeding Industry (GB18596-2001); and the whole system has the advantages of compact structure, good water production quality, stable water quality and the like, and is capable of directly recycling for irrigation.

Description

A kind of livestock breeding wastewater treatment system

Technical field

The utility model relates to sewage treatment area, particularly a kind of livestock breeding wastewater treatment system.

Background technology

Poultry industry is the important component part of China's agricultural and rural economy, it also is the one of the main reasons that causes China's rural area pollution of area source, it is serious day by day that livestock and poultry breeding industry is greatly developed the problem of environmental pollution that brings, not only influence Economic development, but also jeopardize ecological safety, become the social concern of people's common concern.The severe contamination that the ight soil that livestock and poultry farm produces and sewage cause surface water, underground water, soil and ambient air has directly influenced people's healthy and ordinary production life.

Livestock breeding wastewater pollutes and has chronicity and non-reversibility, and its features of pollution is high suspended matter, high organism and high ammonia nitrogen, and biodegradability is strong, and stink is big.Present most of plant generally adopts easy processing mode to aquaculture wastewater: as biogas, oxidation pond, precipitation, discharging etc. naturally, its processed waste water has shortcomings such as the low and instability of compliance rate.

Summary of the invention

At the problems referred to above, the purpose of this utility model is to provide a kind of good waste water treatment effect and treatment effect stable, the livestock breeding wastewater treatment system that the waste water after the processing can reuse.

For achieving the above object, the technical scheme that the utility model proposes is: a kind of livestock breeding wastewater treatment system, it is characterized in that: comprise the water collecting basin, solid-liquid separating machine, methane-generating pit, Aerobic Pond, oxygen compatibility pool, MBR pond, mudpan and the sludge treating system that link to each other successively by pipeline, be provided with aerating system in described Aerobic Pond, oxygen compatibility pool and the MBR pond, described MBR is provided with a membrane module in the pond at least, and described membrane module links to each other with water producing pipe road, product water pump.

Further, also be provided with stirrer on the described water collecting basin.

Further, also be provided with adder-subtractor on the described Aerobic Pond.

Further, described MBR pond also links to each other with Aerobic Pond by slush pump, extraction mud pipe road.

Further, also comprise a disinfection by chlorine dioxide device, described water producing pipe road is provided with an ejector, and described disinfection by chlorine dioxide device links to each other with ejector by pipeline.

Further, also by pipe connection one backwash medicine groove is arranged on the described water producing pipe road.

Adopt technique scheme, livestock breeding wastewater treatment system described in the utility model is at first fermented livestock breeding wastewater by solid-liquid separation and methane-generating pit after, waste water carries out aerobic biochemical in Aerobic Pond handles, majority of organic pollutants matter in the degradation water, and the ammonia nitrogen material in the water is converted into nitro attitude nitrogen or nitrous ground state nitrogen; Enter in the oxygen compatibility pool further degradation of organic substances matter again, and be nitrogen with the nitro attitude nitrogen in the water or the nitrogen transformation of nitrous ground state; Advanced treatment is carried out in last MBR pond, thorough degrading organic contaminant in wastewater matter, remove suspended substance, in the water outlet of MBR film the disinfection by chlorine dioxide device is set, kill the virus and bacterias such as intestinal bacteria in the water, guarantee that water outlet reaches " livestock and poultry breeding industry pollutant emission standard " emission standard (GB18596-2001); Total system has compact construction, produces the good and water conditioning of water water quality, can direct reuse in advantages such as irrigations.

Description of drawings

Fig. 1 is livestock breeding wastewater treatment system structural representation described in the utility model;

Wherein: 101. water collecting basins, 102. Aerobic Ponds, 103. oxygen compatibility pools, 104. MBR ponds, 105. mudpans, 106. sludge treating systems, 107. aerating systems, 108. adder-subtractors, 109. disinfection by chlorine dioxide devices, 110. water producing pipe roads, 111. produce water pumps, 112. membrane modules, 113. slush pumps, 114. extraction mud pipe roads, 115. ejectors, 116. backwash medicine grooves, 117. stirrers, 118. solid-liquid separating machines, 119. methane-generating pits.

Embodiment

Below in conjunction with the drawings and specific embodiments, the utility model is described further.

As shown in Figure 1, a kind of livestock breeding wastewater treatment system, comprise the water collecting basin 101, solid-liquid separating machine 118, methane-generating pit 119, Aerobic Pond 102, oxygen compatibility pool 103, MBR pond 104, mudpan 105 and the sludge treating system 106 that link to each other successively by pipeline, be provided with aerating system 107 in described Aerobic Pond 102, oxygen compatibility pool 103 and the MBR pond 104, at least be provided with a membrane module 112 in the described MBR pond 104, described membrane module 112 and water producing pipe road 110, produce water pump and link to each other and also be connected with disinfection by chlorine dioxide device 109 on 112, the MBR pond 104; In addition, also be provided with a stirrer 117 on the water collecting basin 101, also be provided with adder-subtractor 108 on the Aerobic Pond 102, MBR pond 104 also links to each other with Aerobic Pond 102 by slush pump 113, extraction mud pipe road 114, comprise that also a disinfection by chlorine dioxide adorns 109, described water producing pipe road is provided with an ejector, and described disinfection by chlorine dioxide device 109 links to each other with ejector 115 by pipeline, also by pipe connection one backwash medicine groove 116 is arranged on the water producing pipe road 110.

During concrete the use, livestock breeding wastewater treatment system each processing unit function described in the utility model is as described below:

Water collecting basin: because the even property of the intermittence of discharge of wastewater and density unevenness, it is bigger to cause influent waste water water quality, the water yield to fluctuate, and therefore the equilibrium that water collecting basin carries out water quantity and quality is set, and alleviates the impact load of subsequent disposal structures;

Solid-liquid separating machine: by the solid matter in the solid-liquid separating machine removal waste water;

Methane-generating pit: make organic substance in anaerobic environment, under the condition of certain temperature, humidity, potential of hydrogen, by the microbial fermentation effect, reach degradation of organic substances and produce the purpose of utilizable inflammable gas biogas;

Aerobic Pond: mainly be under aerobic state, utilize raw waste water to cultivate after adding aerobic bacteria in the waste water, thereby form one deck based on the microbial film of aerobic bacteria at filler.This pond utilizes this kind microbial film that the solubility small molecules solid organic matters complete oxidation in the water is carbonic acid gas and water molecules just; Simultaneously the ammonia nitrogen in the water is converted into nitrate nitrogen and nitrite nitrogen.Microorganism is converted into ammonia nitrogen in nitrate nitrogen and the nitrite nitrogen process can digest a certain amount of basicity, so adder-subtractor need be set;

Oxygen compatibility pool: mainly be under the state of anoxic, utilize raw waste water to cultivate after adding facultative anaerobe in the waste water, thereby in the pond, form the biological flora based on the oxygen bacterium of holding concurrently.Microorganism is resolved into small organic molecule matter to the larger molecular organics matter that is dissolved in the water, thereby is that nitrogen reaches the purpose of removing ammonia nitrogen fully with the nitro attitude nitrogen in the water or the nitrogen transformation of nitrous ground state simultaneously;

The MBR pond: the MBR pond has caused very big concern recently as a kind of new technology that is used for Sewage treatment systems, traditional relatively activated sludge process, the MBR technology replaces the settlement separate of activated sludge process settling tank with membrane sepn, except the characteristics of the active sludge that can keep high density, also have can obtain high-quality water quality treatment, floor space little, be easy to install many advantages such as operation is convenient; Waste water gravity flow after aerobic, facultative anaerobic biochemical are handled enters the MBR pond and carries out advanced treatment, thorough degrading organic contaminant in wastewater matter, remove suspended substance, outlet conduit arranges the disinfection by chlorine dioxide device in the MBR pond, kill the virus and bacterias such as intestinal bacteria in the water, can be back to towards pigsty etc. by the MBR treated water.In addition, be to save running cost, when treated water during without reuse, the MBR pond can be converted to the effect in O pond, so just formed the O/A/O treatment process, pollution substances such as organic, the ammonia nitrogen in the same effectively degradation water;

Mudpan: according to microorganism growth breeding rule, utilize biological treatment waste water all can increase mud, the most of mud recycle of native system, small part enters sludge treating system later through the mudpan precipitation and disposes together.Can reach " livestock and poultry breeding industry pollutant emission standard " emission standard (GB18596-2001) through the supernatant liquor behind the sludge settling, then by the discharging of effluent standard mouth.

Although specifically show and introduced the utility model in conjunction with preferred embodiment; but the those skilled in the art should be understood that; in not breaking away from the spirit and scope of the present utility model that appended claims limits; in the form and details the utility model is made a variety of changes, be protection domain of the present utility model.

Claims

1. livestock breeding wastewater treatment system, it is characterized in that: comprise the water collecting basin, solid-liquid separating machine, methane-generating pit, Aerobic Pond, oxygen compatibility pool, MBR pond, mudpan and the sludge treating system that link to each other successively by pipeline, be provided with aerating system in described Aerobic Pond, oxygen compatibility pool and the MBR pond, described MBR is provided with a membrane module in the pond at least, and described membrane module links to each other with water producing pipe road, product water pump.

2. a kind of livestock breeding wastewater treatment system according to claim 1 is characterized in that: also be provided with stirrer on the described water collecting basin.

3. a kind of livestock breeding wastewater treatment system according to claim 1 is characterized in that: also be provided with adder-subtractor on the described Aerobic Pond.

4. a kind of livestock breeding wastewater treatment system according to claim 1 is characterized in that: described MBR pond also links to each other with Aerobic Pond by slush pump, extraction mud pipe road.

5. a kind of livestock breeding wastewater treatment system according to claim 1, it is characterized in that: also comprise a disinfection by chlorine dioxide device, described water producing pipe road is provided with an ejector, and described disinfection by chlorine dioxide device links to each other with ejector by pipeline.