CN206345742U - High-concentration culture waste treatment systems - Google Patents

Abstract

The utility model discloses a kind of high-concentration culture waste treatment systems, it is related to excreta process field, main inlet, medicament-mixing device, flotation unit, sand filtering device, stripping tower, ultrafiltration apparatus and the liquid outlet for including being sequentially connected, medicament-mixing device is connected with medicine system, the molten gas equipment of flotation unit and the extension being arranged in flotation cell float device, sand filtering device uses sand bed stacking structure, to realize the function of being handled high concentration excreta.

Description

High-concentration culture waste treatment systems

Technical field

The utility model is related to a kind of high-concentration culture waste treatment systems, relates generally to excreta process field.

Background technology

China possesses huge animal husbandry industrial chain, great to promote national development and raising farmers' income to be made that Contribution.But, in view of the limitation of China's agricultural science and technology level at this stage, while production, substantial amounts of sewage is directly discharged into Rivers, cause serious pollution.

Fowl and animal excrement problem also becomes increasingly conspicuous in animal husbandry industrial chain, is increasingly becoming the focus of society.There is data to show, The existing 1632 big-and-middle-sized fowl and livestock farms in the whole nation in 2000, reach milk cow 60,000, live pig 5,000,000, the feeding of the plumages of 1 .4 of chicken hundred million The scale of supporting, feces of livestock and poultry year yield has reached hundred million tons of about 17 .3, is 2 .7 times of trade waste.Livestock culture industry poultry Fecal pollution turns into one of three major source of pollution mutually arranged side by side with industrial wastewater, sanitary sewage.

Current poultry excrement and urine disposal technology mainly has the methods such as seasoning, chemical method, but this several method is existed Some more obstinate harmful levels of pathogens, pest and disease damage and weed seeds can not be thoroughly killed, secondary pollution is easily caused, quantity of energy is consumed Greatly, distribute a large amount of foul smell during processing, and processing time long fertilizer loss it is also more serious the problems such as.But, excrement can be used as one Kind of the energy is recycled, and is a kind of extremely valuable resource, and it contains substantial amounts of nitrogen, phosphorus, potassium nutrition composition and some are micro Element, while also containing substantial amounts of organic substance.Dry pig manure can be used to the generation biogas energy that ferments, it is also possible to organic to do Fertilizer, can also be used to cultivate algae.Therefore, how to realize that livestock culture dung recovery is utilized and non-secondary pollution, be mesh Preceding urgent problem to be solved.

Contain a large amount of loop chain organic compounds in aquaculture wastewater（High concentration COD）, nitrine class inorganic compound（Uric acid）With Ammonia nitrogen, suspension etc., these materials either enter water body（Such as it is discharged into surface water body or the water body that permeates the ground）, or it is therein Some substance releases enter air, and they can produce serious harm, the ecological ring of destruction to animal and plant directly or indirectly Border.Inorganic matter is general in aquaculture wastewater exists in forms such as ammonium salts, such as NH4+, NH3, SCN-, CN-, SO42-, TP.It is organic Thing is in addition to CODcr, BOD5, SS etc., in addition to aliphatic compound, heterocycle compound and polycyclic aromatic hydrocarbons (PAH) etc., while also wrapping Include petroleum-type, animals and plants oily substance.Contain substantial amounts of poisonous and harmful substance in sewage, some of which phenolic compound can make carefully Born of the same parents' protein occurs denaturation and precipitated, and has direct toxic action to various cells, can also cause methemoglobinemia；Its Middle cyanide belongs to extremely toxic substance, into after organism, can be combined with high swage cytochrome oxidase, become the high swage of cyaniding thin Born of the same parents' chromo-oxidase, makes it lose the effect of transmission oxygen, so as to cause histanoxia and cause poisoning；It is wherein substantial amounts of many

PAH and heterocycle compound, are much suspected of carcinogenic and mutagenic matter, wherein substantial amounts of organic matter is discharged into After water body, substantial amounts of dissolved oxygen in water will be also consumed, water hypoxia is caused, aquatile is endangered.Because sewage is to natural, ecological Destruction it is extremely serious, the threat to the mankind is huge, therefore, not only it is administered, and thoroughly to be administered, And prevent the transfer of pollution and produce secondary pollution, while to carry out recycling limited water resource.Although Wastewater treatment can be handed over burning, wet oxidation, sonolysis, ozone oxidation, liquid chlorine oxidation, Chlorine Dioxide Oxidation, ion Change, steam stripping remove, a variety of physics such as extraction and recovery, biological decomposition, chemistry, physicochemical or biochemical method, It is used alone or in combination and obtains a certain degree of processing.But the process of most physics and chemistry to wastewater treatment not very Effectively, some processing are not thorough, and some meetings cause pollution transportation or produce secondary pollution, in particular with side physically or chemically Method handles waste water, and its operating cost is extremely high, and general enterprises are beyond affordability.Therefore, Experience in Development both domestic and external, China are used for reference Start to greatly develop green agriculture and build ecological environmental-protection cultivation.For example, by the mankind and the excreta or sewage collecting of animal After fermentation, obtain biogas and the sewage disposal system of various energy utilization devices is set around biogas.At this stage, at this sewage Reason system remains in the application of small-scale and small range, and most of methane-generating pit is to carry out regeneration to sewage unilaterally, Obtain after biogas, remaining biogas slurry and biogas residue are abandoned as waste material.In addition, biogas residue and biogas slurry are often deposited on methane-generating pit bottom, natural pond Liquid and biogas residue, which are mixed, to be difficult to separate, it is necessary to separate and can further utilize after artificial periodically salvaging cleaning.The profit of sewage Still very low with rate, engineering construction cost is high, and economic benefit is low, it is difficult to large-scale promotion.Meanwhile, the sewage after processing is often difficult To reach discharge standard, severe contamination is caused.

Utility model content

For above the deficiencies in the prior art, the utility model proposes a kind of high-concentration culture of efficient process excreta row Let out thing processing system.

To reach above-mentioned purpose, the technical solution of the utility model is：Including the inlet being sequentially connected, medicament-mixing device, Flotation unit, sand filtering device, stripping tower, ultrafiltration apparatus and liquid outlet, medicament-mixing device are connected with medicine system, the molten gas of flotation unit Equipment and the extension being arranged in flotation cell float device, and sand filtering device uses sand bed stacking structure.

Technical principle of the present utility model is as follows：Water inlet connects water pump, and mixture in manure pit is pumped into mixed medicine and filled by water pump In putting.Medicine system by the addition of various medicines enter the medicine in medicament-mixing device, medicament-mixing device and mixture mixed after it is solidifying Consolidate into less dough mixture, the mixture after mixed medicine is pumped into flotation unit by pump.Flotation unit has molten gas to set Standby and extension floating apparatus；Mixture enters flotation cell, and molten gas equipment produces bubble, and it is floating that bubble is suspended in the sediment in mixture The upper position of screening device, recycles extension floating device that suspension is linked into outlet.Now most sediment in mixture It will strike off, the mixture of remaining liquid is passed through in sand filtering device and filtered, the water after filtering is eliminated into stripping tower Ammonia and nitrogen therein, finally enter ultrafiltration apparatus and carry out last time filtering, excluded from delivery port, water now is very It is limpid, national grade one discharge standard can be reached.

The beneficial effects of the utility model are as follows：Existing poultry excrement and urine disposal is solved using the system, made after processing Water can reach discharge standard, and finally discharged water of the invention can reach national standard reference, greatly exceed this industry Discharge needs to reach secondary standard.

Further, molten gas equipment includes air compressor machine, dissolving and relief nozzle, air compressor machine connection dissolving, dissolving connection Relief nozzle, relief nozzle is arranged in flotation cell, is mixed after air compressor machine generation air in dissolving with liquid, pressure reaches 0.4 MPa, now the gas-liquid mixture in dissolving is by relief nozzle formation minute bubbles, and minute bubbles are passed directly into mixture.

Further, the scraper plate that floating apparatus includes being arranged on flotation cell top is hung, scraper plate scrapes away suspension.

Further, the sand bed stacking structure of sand filtering device is followed successively by coarse sand gravel bed, graphite carbon-coating and fine sand layer from inside to outside, Using multi-level carry out purified treatment, clean-up effect is more notable.

Further, RO reverse osmosis units are additionally provided between ultrafiltration apparatus and liquid outlet, are made with enough pressure molten in solution Agent is separated by reverse osmosis membrane, improves purified treatment effect.

Brief description of the drawings

, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art The accompanying drawing used required in description is briefly described, it should be apparent that, drawings in the following description are only that this practicality is new Wherein two width of type, for those of ordinary skill in the art, without having to pay creative labor, can be with root Other accompanying drawings are obtained according to these accompanying drawings.

Fig. 1 is the structural representation of the utility model embodiment；

Fig. 2 is the stereogram of the utility model embodiment.

Wherein, 1- medicament-mixing devices, 2- flotation units, 201- scraper plates, 2021- dissolvings, 2022- air compressor machines, 3- sand filtrations dress Put, 4- ultrafiltration apparatus, 5-RO reverse osmosis units, 6- liquid outlets.

Embodiment

Below in conjunction with accompanying drawing, the technical scheme in the utility model is clearly and completely described, it is clear that retouched The embodiment stated is only preferred embodiment of the present utility model, rather than whole embodiments.Based in the utility model Embodiment, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, all Belong to the scope of the utility model protection.

Embodiment

As depicted in figs. 1 and 2, the present invention includes medicament-mixing device 1, flotation unit 2, sand filtering device 3, the stripping being sequentially connected Tower, ultrafiltration apparatus 4 and RO reverse osmosis units 5.Water inlet connects water pump, and mixture in manure pit is pumped into medicament-mixing device 1 by water pump, The medicine and mixture that medicine system proportioning medicine addition enters in medicament-mixing device 1, medicament-mixing device 1 are mixed and are frozen into Mixture after less dough mixture, mixed medicine is pumped into flotation unit 2 by pump.Flotation unit 2 is set including molten gas Extension floating apparatus that is standby and being arranged in flotation cell；Molten gas equipment includes air compressor machine 2022, dissolving 2021 and relief nozzle, air compressor machine 2022 connection dissolvings 2021, the connection relief nozzle of dissolving 2021, relief nozzle is arranged in flotation cell, and air compressor machine 2022 produces sky Gas forms gas-liquid mixture in dissolving 2021.Mixture enters after flotation unit 2, and gas-liquid now in dissolving 2021 is mixed Compound is passed directly into mixture by relief nozzle formation minute bubbles, minute bubbles, makes the scum silica frost in mixture will not be because of gravity Reason declines, and scum silica frost is suspended in the upper position of flotation unit 2.The scraper plate 201 that floating apparatus includes being arranged on flotation cell top is hung, Scraper plate 201 is driven by motor.Drive scraper plate 201 that suspension is linked into outlet using motor.It is now most of in mixture Sediment will strike off, the mixture of remaining liquid enters to be filtered in sand filtering device 3, and sand filtering device 3 is by coarse gravel The sand bed stacking structure that layer, graphite carbon-coating and fine sand layer are formed from inside to outside.Water after filtering enters stripping tower and eliminates ammonia therein Gas and nitrogen, finally enter ultrafiltration apparatus 4 and carry out last time filtering, excluded from liquid outlet 6, water now is very clear It is clear, national grade one discharge standard can be reached.

Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model Within the spirit and principle of utility model, any modification, equivalent substitution and improvements made etc. should be included in the utility model Protection domain within.

Claims (4)

1. high-concentration culture waste treatment systems, it is characterised in that including the inlet, medicament-mixing device, flotation being sequentially connected Device, sand filtering device, stripping tower, ultrafiltration apparatus and liquid outlet, the medicament-mixing device are connected with medicine system, the flotation unit Molten gas equipment and the extension being arranged in flotation cell float device, and the sand filtering device uses sand bed stacking structure.

2. high-concentration culture waste treatment systems according to claim 1, it is characterised in that：The molten gas equipment includes Air compressor machine, dissolving and relief nozzle, the air compressor machine connect dissolving, and dissolving connection relief nozzle, relief nozzle is arranged in flotation It is indoor.

3. high-concentration culture waste treatment systems according to claim 1, it is characterised in that：The extension floating apparatus includes It is arranged on the molten gas equipment on flotation cell top

High-concentration culture waste treatment systems according to claim 1, it is characterised in that：The sand bed of the sand filtering device Stacking structure is followed successively by coarse sand gravel bed, graphite carbon-coating and fine sand layer from inside to outside.

4. high-concentration culture waste treatment systems according to claim 1, it is characterised in that：The ultrafiltration apparatus is with going out RO reverse osmosis units are additionally provided between liquid mouthful.