CN104108840A - Water-rinsing-dung type large-scale dung comprehensive treatment method for dairy cattle farm - Google Patents

Abstract

The invention discloses a water-rinsing-dung type large-scale dung comprehensive treatment method for a diary cattle farm. The method comprises the following processes of: 1) feeding collected dung, cattle house rinsing water and the like into a dung collection furrow, performing grid interception, separation, conditioning and homogenization and solid-liquid separation, airing and using the solids as cattle house padding, and ensuring liquid to enter a temporary storage pool; 2) feeding a portion of liquid in the temporary storage pool into an anaerobic fermentation system for treating to be used as wastewater for performing backwash of the system, and feeding the other portion of liquid into a multilevel biological cleaning storage pond through a sewage storage pool and connecting the multilevel biological cleaning storage pond with a filling mixed pool for regulating water quality to reach the safe agricultural irrigation level; 3) delivering dry and clean dung into a dung heaping field and using the dry and clean dung as edible fungi culture mediums and earthworm culture mediums, or directly selling or selling to persons who work in the planting industry after the dry and clean dung is made into composted fertilizers or organic fertilizers by means of stack retting. The water-rinsing-dung type large-scale dung comprehensive treatment method has the advantages that a water using method is optimized, so that the steps of production and drainage, treatment and utilization of sewage are performed in a virtuous circle mode; the method is high in process universality, low in operation cost and long in service life, has high capability of buffering and purifying the sewage, and is capable of effectively improving environmental hygiene.

Description

A kind of water rushes the dirty integrated conduct method of excrement formula mass-producing diary farm excrement

Technical field

The present invention relates to agricultural resource and environmental wastewater treatment technology, be specifically related to a kind of water and rush the dirty integrated conduct method of excrement formula mass-producing diary farm excrement.

Background technology

According to the issue < < of Ministry of Agriculture whole nation advantageous agricultural product Regional planning layout 2008-2015 > > statistics, at present, China per capita milk preparation consumption be only equivalent to world average level 1/4, developed country 1/12, development space is wide.In recent years, lifting along with milk preparation demand, under the drive of milk cow Predominance Area, China milk industry grows continuously and fast, emerge a collection of star enterprise and famous brand name, having obtained significant effect, is 1,440 ten thousand according to herding yearbook statistics national cultivation amount in 2012, expects national milk cattle cultivating amount in 2015 reach 1,700 ten thousand according to planning.Continuous expansion along with cultivation scale; the increase of the intensive milk cattle cultivating number of pasture type; the problem of environmental pollution that the excrement dirt of mass-producing diary farm causes; especially the water of take rushes a large amount of high-concentration culture excrement dirts that excrement is type mass-producing milk cattle cultivating place, the pasture generation of main clear excrement technique, is just causing social extensive concern.

Owing to producing row's bulky stool dirt in industry development process, fail controlled timely and effectively and utilize, cause the waste of ample resources, and threaten livestock product quality and breeding environment place of production safety.For this reason, country and local government has put into effect a series of decree regulations, standards and norms retrain and promote the sound development of industry.On January 1st, 2014, State Council formally promulgates < < livestock and poultry breeding scale pollution prevention ordinance > >, the Ministry of Agriculture, Chinese Ministry of Environmental Protection has issued and implemented < < livestock and poultry farm ambient quality standard > >, < < livestock and poultry breeding industry pollutant emission standard > >, < < livestock and poultry breeding industry pollution prevention technique standard > >, the standard specificationss such as < < livestock and poultry breeding industry waste treatment project technical specifications > > retrain and solve Pollution from livestock and poultry problem.

Water rushes excrement formula mass-producing diary farm due to the singularity of cultivation and the dirty collection process of excrement; its cultivation excrement dirt exists with liquid form; there is the features such as organic content is high, nitrogen and phosphorus content is high, suspension content is high, solid-liquid separation difficulty is large; as without effectively processing and direct entered environment, certainly will cause comparatively serious environmental pollution.

Water rushes excrement formula mass-producing diary farm ight soil and is mainly derived from cowshed, playground; Water rushes that waste water in excrement technique is mainly derived from milking parlour wash-down water, waits to squeeze Room wash-down water, ox urine, cowshed ground flushing water, summer cowshed spray water, transport the excrement pipeline waste water that backwashes, wherein transporting the excrement pipeline waste water that backwashes is the main waste water source that water rushes excrement technique.Current water rushes the problem existing in the dirty collection of excrement formula mass-producing dairy cow farm excrement and method of shipment: solid-liquid separating equipment is limited in one's ability, water consumption is large, water link is many, product water amount of blowdown is large, the organic concentration of sewage is high, sewage by suspended substrate concentration is high, direct agricultural environmental risk is large.

Summary of the invention

The object of the invention is to for above-mentioned existing problems; provide a kind of water to rush the dirty integrated conduct method of excrement formula mass-producing diary farm excrement; the method is taken into account the dirty categorised collection of mass-producing diary farm cultivation excrement and classification is processed; there is seasonal adaptive faculty and storage and deep purifying ability, can realize the dirty treatment process of comprehensive excrement of breeding combination.

Technical scheme of the present invention:

Water rushes the dirty integrated conduct method of excrement formula mass-producing diary farm excrement, comprises following technique:

1) first by the ight soil that becomes cow house to collect, punching circle water, summer spray water, the unified dirty ditch of collecting of excrement of sending into the pipeline that backwashes of ox urine, through the interception of grating tank after separated, enter equalizing tank and carry out modified homogenate, after adjusting mixes, enter solid-liquid separating machine and carry out solid-liquid separation, solid part is sent to airing field and dries and as ox bed padding, be back to cowshed afterwards, and liquid portion enters scratch pool;

2) scratch pool is processed separating liquid, a part is sent to anaerobic fermentation system and processes to meet the backwash waste water of consumption of system, this part waste water through between solar heating, one-level anaerobic reactor, delivery system, secondary anaerobic reactor enter aerobic aeration pond and purify with deamination detoxification, guarantee enters culture zone backwash water can not have influence on place environment, and the biogas that anaerobic process produce is as boiler oil; Another part enters multi-stage biological through sewage storage pool and purifies the storage pool, multi-stage biological purifying pond comprises anaerobic pond, facultative lagoon, the aerobic pool and multistage Plant Pond, the anaerobic pond of multi-stage biological purifying pond, facultative lagoon and the aerobic pool are provided with impervious barrier, avoid contaminated wastewater underground water, northern area is that anaerobic pond and facultative lagoon setting heat greenhouse to improve the processing efficiency on the two-stage pool, and multistage Plant Pond end connects a mixed pond regulating water quality of filling with to safe agriculture grouting horizontal;

3) the dry clear excrement of growing cattle and the dry clear excrement of playground are sent to heap middenstead by fortune dung-cart, collect dry clear excrement as edible fungus culture medium and vermiculture matrix, directly sell or sell to plant husbandry after heap retting is become thoroughly decomposed fertilizer or fertilizer, to realize changing rejected material to useful resource recycle.

 

Advantage of the present invention and positively effect:

1) the method fully combines breeding technique and the clear defecation process characteristic that water rushes excrement diary farm, optimize water use model, with the middle water after purifying, replace cleaning water, reduce water input and waste water and produce discharge capacity, especially product row, processing and the recycling of sewage enter benign cycle to make to cultivate excrement dirt;

2) technique versatility is good, and the water that can meet different areas rushes the dirty processing of excrement formula mass-producing diary farm excrement;

3) system is strong to the buffering of sewage and detergent power, significantly reduces plant in input cost and operation burden that excrement is dirty to be processed, can effectively improve the environmental health of plant and periphery, for developing clean cultivation, provides guarantee;

4) working cost is low, and it can agriculturally be major objective that system moves to realize organic excrement dirt, and realizes qualified discharge target and compares and in technique, significantly reduced running cost and cost of investment;

5) system automation degree is high, and running maintenance is simple, and the operation of whole system only needs part-time operation, does not need to arrange fixed personnel;

6) Technology is perfect, system long service life.

Accompanying drawing explanation

Fig. 1 is the process flow sheet of integrated conduct method.

Embodiment

Embodiment:

Water rushes the dirty integrated conduct method of excrement formula mass-producing diary farm excrement, as shown in Figure 1, comprises following technique:

1) first by the ight soil that becomes cow house to collect, punching circle water, summer spray water, the unified dirty ditch of collecting of excrement of sending into the pipeline that backwashes of ox urine, through the interception of grating tank after separated, enter equalizing tank and carry out modified homogenate, after adjusting mixes, enter solid-liquid separating machine and carry out solid-liquid separation, solid part is sent to airing field and dries and as ox bed padding, be back to cowshed afterwards, and liquid portion enters scratch pool;

2) scratch pool is processed separating liquid, a part is sent to anaerobic fermentation system and processes to meet the backwash waste water of consumption of system, this part waste water through between solar heating, one-level anaerobic reactor, delivery system, secondary anaerobic reactor enter aerobic aeration pond and purify with deamination detoxification, guarantee enters culture zone backwash water can not have influence on place environment, and the biogas that anaerobic process produce is as boiler oil; Another part enters multi-stage biological through sewage storage pool and purifies the storage pool, multi-stage biological purifying pond comprises anaerobic pond, facultative lagoon, the aerobic pool and multistage Plant Pond, the anaerobic pond of multi-stage biological purifying pond, facultative lagoon and the aerobic pool are provided with impervious barrier, avoid contaminated wastewater underground water, northern area is that anaerobic pond and facultative lagoon setting heat greenhouse to improve the processing efficiency on the two-stage pool, and multistage Plant Pond end connects a mixed pond regulating water quality of filling with to safe agriculture grouting horizontal;

3) the dry clear excrement of growing cattle and the dry clear excrement of playground are sent to heap middenstead by fortune dung-cart, collect dry clear excrement as edible fungus culture medium and vermiculture matrix, directly sell or sell to plant husbandry after heap retting is become thoroughly decomposed fertilizer or fertilizer, to realize changing rejected material to useful resource recycle.

The method fully combines breeding technique and the clear defecation process characteristic that water rushes excrement diary farm, optimize water use model, with the middle water after purifying, replace cleaning water, reduce water input and waste water and produce discharge capacity, especially product row, processing and the recycling of sewage enter benign cycle to make to cultivate excrement dirt, use well, there is significant technology and economical effectiveness.

Claims (1)

1. water rushes the dirty integrated conduct method of excrement formula mass-producing diary farm excrement, it is characterized in that comprising following technique:

1) first by the ight soil that becomes cow house to collect, punching circle water, summer spray water, the unified dirty ditch of collecting of excrement of sending into the pipeline that backwashes of ox urine, through the interception of grating tank after separated, enter equalizing tank and carry out modified homogenate, after adjusting mixes, enter solid-liquid separating machine and carry out solid-liquid separation, solid part is sent to airing field and dries and as ox bed padding, be back to cowshed afterwards, and liquid portion enters scratch pool;

2) scratch pool is processed separating liquid, a part is sent to anaerobic fermentation system and processes to meet the backwash waste water of consumption of system, this part waste water through between solar heating, one-level anaerobic reactor, delivery system, secondary anaerobic reactor enter aerobic aeration pond and purify with deamination detoxification, guarantee enters culture zone backwash water can not have influence on place environment, and the biogas that anaerobic process produce is as boiler oil; Another part enters multi-stage biological through sewage storage pool and purifies the storage pool, multi-stage biological purifying pond comprises anaerobic pond, facultative lagoon, the aerobic pool and multistage Plant Pond, the anaerobic pond of multi-stage biological purifying pond, facultative lagoon and the aerobic pool are provided with impervious barrier, avoid contaminated wastewater underground water, northern area is that anaerobic pond and facultative lagoon setting heat greenhouse to improve the processing efficiency on the two-stage pool, and multistage Plant Pond end connects a mixed pond regulating water quality of filling with to safe agriculture grouting horizontal;

3) the dry clear excrement of growing cattle and the dry clear excrement of playground are sent to heap middenstead by fortune dung-cart, collect dry clear excrement as edible fungus culture medium and vermiculture matrix, directly sell or sell to plant husbandry after heap retting is become thoroughly decomposed fertilizer or fertilizer, to realize changing rejected material to useful resource recycle.