CN1435281A

CN1435281A - Livestock and poultry dung recovery treating method

Info

Publication number: CN1435281A
Application number: CN02110692A
Authority: CN
Inventors: 殷肇君; 陈雄骁; 李应森; 何文辉
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-01-29
Filing date: 2002-01-29
Publication date: 2003-08-13
Anticipated expiration: 2022-01-29
Also published as: CN1176760C

Abstract

A process fore reclaiming the droppings and dung of domestic animal and fowls includes such steps as solid-liquid separation, fermenting solid dung to obtain fertilizer, puffing solid dropping to obtain fish feed, the deposition, filtering and dilution of liquid to obtain the culture liquid of unicellular algae which can be used to culture algophagous insects for transforming water or using them as living feed of animals.

Description

Livestock and poultry dung recovery treating method

Technical field: the treatment process that the present invention relates to feces of livestock and poultry.

Technical background: at present, large quantities of livestock and poultry pasture brings severe contamination for the water quality of periphery, government throws huge fund and carries out keypoint treatment, builds the pollution treatment facility, formulates livestock and poultry pasture qualified discharge technology, in the pollution treatment facility of having built, generally adopt oxygen consumption aeration industry pollution treatment technology, be difficult to bear because equipment working cost height, project build up the many plants in back, the treatment system that the unit that has builds up is not operation for a long time, equipment has rusty stains, and a large amount of pollution treatment inputs fail to receive due effect.Prior art a large amount of liquid dungs is not used as a kind of resource develops, so that livestock and poultry liquid dung becomes the source of pollution of water quality for a long time except solid-state manure fermentation being returned the field as fertilizer or the expanded work of brid guano being fed the feed of fish.

Summary of the invention: the technical problem to be solved in the present invention is that a kind of treatment system of design makes feces of livestock and poultry become a kind of resource for utilization in the process of handling, and result no longer makes peripheral water quality be polluted.

The technical solution used in the present invention comprises sets up the multi-stage biological treatment system that comprises algae culturing pool, supports worm pond, three biological treatment tanks in pasture and water pond simultaneously with livestock and poultry excrement solid-liquid separation, liquid manure sedimentation and filtration; The dilution of the liquid dung of sedimentation and filtration is injected algae culturing pool as the nutrient solution of unit cell algae, and the unit cell algae of algae culturing pool absorbs organic matter and the just ramp breeding of eutrophy salt in the liquid dung, and the liquid dung of dilution is converted to algae water in algae culturing pool; Toward supporting the bait of worm pond transfer as algivorous insect, algivorous insect obtains competent bait ramp breeding in the algae water to the algae water of algae culturing pool gradually, and algivorous insect has been eaten up the unit cell algae, and it is clear that water quality becomes, algae water conversion adult drainage; Algivorous insect is an animal high-quality living bait, and higher economic value is arranged, and can fish for algivorous insect in right amount and make animal bait on the basis of keeping the suitable cultivation density in foster worm pond; The unit cell algae of supporting the worm pond is eaten up, is acidic water after becoming the worm drainage in the pond by algivorous insect, be fit to culture pasture and water, can rest the worm drainage in worm pond and send into the pasture and water pond gradually, the worm drainage is cleaned into clean water in the pasture and water pond through the photosynthesis of pasture and water, and recyclable clean water is herded thing for livestock and poultry and re-used in the pasture and water pond at last; Ornamental submerged plant can be cultured in the pasture and water pond, but ornamental submerged plant synthesising plant protein matter, lipid acid and sugar have better economic to be worth.

Advantage of the present invention is to adopt the method for setting up biologic chain that feces of livestock and poultry is carried out scientific and reasonable design as available resource, not only make the livestock and poultry pasture can realize sewage zero-discharge, not recontaminate periphery water quality, also can conserve water, and in the process of handling, can produce byproducts such as fertilizer, bait, ornamental plant and open up the new way that turns waste into wealth, for bringing new economic benefit in the pasture, the present invention also has easy enforcement, reduced investment, advantage that working cost is low.

Description of drawings: what accompanying drawing was represented is a kind of embodiment skeleton diagram of the present invention.

Embodiment: implementing best way of the present invention is that feces of livestock and poultry is carried out solid-liquid separation with solid-liquid separating machine, and solid manure returns as fertilizer through fermentation, the feed that the bird solid manure can expanded work be fed fish; The liquid liquid dung passes through sedimentation and filtration, feces-dreg water carries out solid-liquid separation again, liquid dung preferably has elimination protozoacide strainer filtering before injecting algae culturing pool, the mesh of filter screen with quantity be 40 orders, 120 orders, 200 orders each, can be provided with in the algae culturing pool and stir water flow machine such as impeller automatic aerator oxygenation aeration, algae culturing pool also can be put bright and beautiful carp and variegated carp in a suitable place to breed in right amount, and the algae hydromining of algae culturing pool injects gradually with valve control supports the worm pond; Support in the worm pond and can establish miniature oxygenating machine oxygenation, supporting the worm pond can adopt water pump that the worm drainage is delivered to the pasture and water pond, 80 purpose filter screens preferably are set before the water pump, the algivorous insect breeding of supporting the worm pond is very fast, when every cubic metre of water body carries worm amount when reaching 5 kilograms, can fish for that 1 kilogram of algivorous insect is made animal bait or processed food is sold every day; The worm drainage of supporting the worm pond becomes acidic water, be fit to culture pasture and water and rare flower under water, can culture ornamental plant, pasture and water still are the high-quality green fodder of fish, shrimp, crab, the worm drainage of resting the worm pond transfers to gradually that pasture and water can not only be supported in the pasture and water pond, water body also becomes clean water through the photosynthesis of pasture and water, not only can breed fish, also can be the livestock and poultry pasture and reclaim use, for example be used for washing livestock and poultry She Peng, dilution liquid manure, recycle, do not need outside discharging, can realize wastewater zero discharge.

Claims

1, livestock and poultry dung recovery treating method comprises livestock and poultry excrement solid-liquid is separated, the liquid manure sedimentation and filtration, it is characterized in that being provided with one and comprise algae culturing pool, support the worm pond, the multi-stage biological treatment system of three biological treatment tanks in pasture and water pond, the nutrient solution that liquid manure is done the unit cell algae through the sedimentation and filtration dilution injects algae culturing pool cultivation unit cell algae, the liquid dung of dilution is after algae culturing pool is converted into algae water, algae water is sent into the foster pool cultivated algivorous insect of worm, rest the clear water in worm pond after the unit cell algae is eaten up by algivorous insect and send into the pasture and water pond, the clear water of supporting the worm pond enters the pasture and water pond and can reclaim clean water from the pasture and water pond after pasture and water purifies.