CN105923918A - Livestock wastewater harmless treatment process - Google Patents

Livestock wastewater harmless treatment process Download PDF

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Publication number
CN105923918A
CN105923918A CN201610445197.9A CN201610445197A CN105923918A CN 105923918 A CN105923918 A CN 105923918A CN 201610445197 A CN201610445197 A CN 201610445197A CN 105923918 A CN105923918 A CN 105923918A
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China
Prior art keywords
waste water
wastewater
livestock
livestock poultry
livestock wastewater
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CN201610445197.9A
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Chinese (zh)
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CN105923918B (en
Inventor
陈国和
梅雪
郦嘉琦
余俊伟
凌雨琪
石爱民
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University of Shaoxing
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University of Shaoxing
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Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00—Multistage treatment of water, waste water or sewage
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/28—Treatment of water, waste water, or sewage by sorption
    • C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
    • C02F1/5245—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents using basic salts, e.g. of aluminium and iron
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/20—Nature of the water, waste water, sewage or sludge to be treated from animal husbandry
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/28—Anaerobic digestion processes
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/30—Aerobic and anaerobic processes
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae

Abstract

The invention relates to a livestock wastewater harmless treatment process which includes the steps: (1) collecting livestock wastewater by a wastewater collecting system; (2) enabling livestock wastewater collected by the wastewater collecting system to pass a grid and separating coarse particulates; (3) enabling the livestock wastewater passing the grid to enter an anaerobic tank; (4) enabling the wastewater after anaerobic treatment to enter a wavy subsurface flow iron carbon micro-electrolysis reactor; (5) enabling the livestock wastewater in the step (4) to enter a wavy subsurface flow constructed wetland treatment system for treatment; (6) further treating the wastewater treated by the wavy subsurface flow constructed wetland treatment system in an ecological pond to meet discharge standards. Refractory organics such as antibiotics, heavy metal elements including copper and zinc in the livestock wastewater are adsorbed by iron carbon particulates and degraded into small molecule compounds by iron carbon micro-electrolysis, COD (chemical oxygen demand), TN (total nitrogen) and TP (total phosphorus) in the wastewater are removed by constructed wetland technology, and pollution of the livestock wastewater to ecological environments is reduced.

Description

A kind of harmless treatment process of waste water of livestock poultry
Technical field
The present invention relates to the process technique of a kind of waste water of livestock poultry, particularly relate to the harmless treatment process of a kind of waste water of livestock poultry, the waste water being mainly used in livestock and poultry farm processes.
Background technology
The treatment technology of existing waste water of livestock poultry mainly has nature treatment technology, Anaerobic Methods in Treating, aerobic treatment technology and mixed processing technology.Natural treatment technology mainly has oxidation pond, soil treatment, artificial wetland treatment etc..Anaerobic Methods in Treating mainly has anaerobic filter (AF), up-flow anaerobic sludge blanket (UASB), hybrid anaerobic reactor (UASB+AF), two phase anaerobic digestion method and up-flow sludge bed reactor (USR) etc..Aerobic biological process technology can be divided into natural Aerobic Process for Treatment and the big class of artificial Aerobic Process for Treatment two.Mixed processing technology is that the advantage utilizing nature treatment technology, Anaerobic Methods in Treating and aerobic treatment technology is optimized combination.These methods have certain effect at removal COD, total nitrogen, total phosphorus etc..But for the antibiotic in waste water of livestock poultry, said method is all difficult to remove.
It is therefore proposed that the present invention.
Summary of the invention
Above-mentioned technical problem for prior art, it is an object of the invention to provide the harmless treatment process of a kind of waste water of livestock poultry, this process technique is by the hardly degraded organic substance in ferrum carbon granule absorption waste water of livestock poultry, such as antibiotic and heavy metal element copper and zinc, and to utilize iron-carbon micro-electrolysis be micromolecular compound by organic matter degradation, recycling Artificial Wetland Techniques removes COD (COD), total nitrogen (TN), total phosphorus (TP) in waste water, reduces the waste water of livestock poultry pollution to ecological environment.
For reaching above-mentioned purpose, the present invention is achieved by the following technical solutions:
The harmless treatment process of a kind of waste water of livestock poultry, it is characterised in that comprise the following steps:
(1) waste water of livestock poultry is collected through wastewater collection system；
(2) waste water of livestock poultry after being collected by wastewater collection system, through grid, separates coarse granule shape thing；
(3) waste water of livestock poultry after grid is entered anaerobic pond；
(4) waste water processed through anaerobic pond is entered waveform undercurrent iron-carbon micro-electrolysis reactor；
(5) waste water of livestock poultry in step (4) is entered wavy subsurface-flow constructed wetland processing system to process；
(6), after the waste water processed through wavy subsurface-flow constructed wetland processing system processes in ecological pond further, discharge standard is reached.
Being provided with some vertical deflection plates in described waveform undercurrent iron-carbon micro-electrolysis reactor, reactor is separated into several compartments being serially connected, is filled with ferrum carbon granule in described compartment by described vertical deflection plate.
Described wavy subsurface-flow constructed wetland processing system includes substrate, and the top layer kind of described substrate is implanted with wetland plant.
Described substrate includes that gravel, coarse sand, flyash and/or bed mud, described wetland plant include Rhizoma Acori Graminei, Canna generalis Bailey, rye grass, Hydrocotyle vulgaris L., Alternanthera philoxeroides, the Fructus Sapindi Mukouossi and/or water spinach, however it is not limited to this.
Beneficial effects of the present invention is as follows:
The harmless treatment process of waste water of livestock poultry of the present invention, the carbon in ferrum carbon granule is utilized to carry out the antibiotic in Adsorption Concentration waste water of livestock poultry, then iron filings and the electrolyzer of carbon composition are utilized, battery effect is occurred to form countless small corrosion galvanic cell, the pollutant in waste water are made to pass through redox reaction, simultaneous electrochemical corrosion reaction can cause again a series of related synergism: adsorbs, flocculate, precipitation, thus reaches to remove antibiotic, heavy metal copper and the purpose of zinc concentration in waste water.Ferrum carbon granule is to utilize the garbage iron filings in mechanical processing process, adds a certain amount of carbon and Additive Production obtains, have the feature of low cost.
Accompanying drawing explanation
Fig. 1 is the process flow diagram of the present invention；
Fig. 2 is the waveform undercurrent organigram in the present invention；Wherein, 1 be water inlet, 2 be outlet, 3 be vertical deflection plate, 4 for compartment.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is further illustrated, but protection scope of the present invention is not limited to this.
As illustrated in fig. 1 and 2, the harmless treatment process of waste water of livestock poultry of the present invention, first its waste water of livestock poultry is collected through collection system, through grid, separates coarse granule shape thing, enters anaerobic pond；Subsequently into waveform undercurrent iron-carbon micro-electrolysis reactor, the most immediately wavy subsurface-flow constructed wetland processing system, the waste water processed through wavy subsurface-flow constructed wetland processing system after further process, reaches discharge standard in ecological pond.
Waste water through anaerobic treatment enters waveform undercurrent iron-carbon micro-electrolysis reactor from water inlet 1 gravity flow, arranges some vertical deflection plates 3 in waveform undercurrent iron-carbon micro-electrolysis reactor, and reactor is separated into several compartments 4 of series connection, fills ferrum carbon granule in compartment 4.When waste water of livestock poultry flows through reactor, Organic substance therein is easily adsorbed by ferrum carbon granule, and in waste water, electrolyte makes to be formed on ferrum carbon granule countless galvanic element, and electrochemical redox effect occurs, produce strong oxidizing property hydroxyl radical free radical, make the Organic substance generation chain-scission degradations such as antibiotic.Waste water, during flowing through reactor compartment, repeatedly experiences Aerobic-anaerobic district, aerobic degradation and anaerobic degradation occurs, has different microorganism dominant populations so that the pollutant in waste water are converted step by step and obtain stable degraded simultaneously in different compartments.The Fe that iron-carbon micro-electrolysis produces3+There is flocculation, can adsorb, flocculate, precipitate heavy metal in waste water copper zinc and part phosphorus-containing compound, reach the effect of removing heavy metals and phosphorus.
Waste water through iron-carbon micro-electrolysis degradation treatment enters wavy subsurface-flow constructed wetland processing system through outlet 2 gravity flow.Wavy subsurface-flow constructed wetland processing system is made up of gravel, coarse sand, flyash and bed mud etc. with substrate, top layer plantation wetland plant such as Rhizoma Acori Graminei, Canna generalis Bailey, rye grass, Hydrocotyle vulgaris L., Alternanthera philoxeroides, the Fructus Sapindi Mukouossi and/or water spinach etc..
Utilize the retaining of substrate, adsorption, absorption microorganism in substrate and the synergism of plant rhizosphere microbe, and the anaerobism of waveform undercurrent, aerobic reaction, remove the Organic substance in waste water and nitrogen phosphorus further.
Waste water finally flows to ecological pond.Water plant in ecological pond is used for synthesis and the propagation of self by photosynthesis absorbed nitrogen, phosphorus, improves Organic substance and the removal function of nitrogen phosphorus in the pool.
Generation amount according to livestock breeding wastewater, waveform undercurrent compartment quantity reasonable in design.Through said process, waste water can reach the requirement of country's " livestock and poultry breeding industry pollution discharge standard ".
The ferrum carbon granule that the present invention uses be the iron filings produced by machining be primary raw material, be proportionally added into Linesless charcoal or activated carbon or agricultural byproducts and clay, after pelletize, roasting forms, and abundant raw material source is with low cost, is typical " treatment of wastes with processes of wastes against one another "；The Organic substance such as antibiotic of difficult degradation in iron-carbon micro-electrolysis energy active adsorption degrading waste water, and side reaction flocculation sediment heavy metal can be utilized, it is substantially reduced its pollution to ecological environment；The water peanut of artificial swamp plantation, water spinach etc. can be as the greenfeeds of poultry, and the Rhizoma Acori Graminei of plantation, Canna generalis Bailey etc. can be beautified the environment.
Above-described embodiment is only used for illustrating the inventive concept of the present invention, rather than the restriction to rights protection of the present invention, all changes utilizing this design that the present invention carries out unsubstantiality, all should fall into protection scope of the present invention.

Claims (4)

1. the harmless treatment process of a waste water of livestock poultry, it is characterised in that comprise the following steps:
(1) waste water of livestock poultry is collected through wastewater collection system；
(2) waste water of livestock poultry after being collected by wastewater collection system, through grid, separates coarse granule shape thing；
(3) waste water of livestock poultry after grid is entered anaerobic pond；
(4) waste water through anaerobic treatment is entered waveform undercurrent iron-carbon micro-electrolysis reactor；
(5) waste water of livestock poultry in step (4) is entered wavy subsurface-flow constructed wetland processing system to process；
(6), after the waste water processed through wavy subsurface-flow constructed wetland processing system processes in ecological pond further, discharge standard is reached.
2. the harmless treatment process of waste water of livestock poultry as claimed in claim 1, it is characterized in that: in described waveform undercurrent iron-carbon micro-electrolysis reactor, be provided with some vertical deflection plates, reactor is separated into several compartments being serially connected by described vertical deflection plate, is filled with ferrum carbon granule in described compartment.
3. the harmless treatment process of waste water of livestock poultry as claimed in claim 1, it is characterised in that: described wavy subsurface-flow constructed wetland processing system includes substrate, and the top layer kind of described substrate is implanted with wetland plant.
4. the harmless treatment process of waste water of livestock poultry as claimed in claim 3, it is characterized in that: described substrate includes that gravel, coarse sand, flyash and/or bed mud, described wetland plant include Rhizoma Acori Graminei, Canna generalis Bailey, rye grass, Hydrocotyle vulgaris L., Alternanthera philoxeroides, the Fructus Sapindi Mukouossi and/or water spinach.
CN201610445197.9A 2016-06-21 2016-06-21 Harmless treatment process for livestock and poultry wastewater Active CN105923918B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610445197.9A CN105923918B (en) 2016-06-21 2016-06-21 Harmless treatment process for livestock and poultry wastewater

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Application Number Priority Date Filing Date Title
CN201610445197.9A CN105923918B (en) 2016-06-21 2016-06-21 Harmless treatment process for livestock and poultry wastewater

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107879477A (en) * 2017-10-31 2018-04-06 河海大学 Collapsible multistage Inner electrolysis drowned flow artificial wet land
CN112047576A (en) * 2020-09-10 2020-12-08 河海大学 Device for removing resistance genes and nitrogen and phosphorus in wastewater of livestock and poultry farm and operation process thereof

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WO1995014368A2 (en) * 1993-11-26 1995-06-01 Vladislav Petrov Somlev A method for the complex purification of waste solutions
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CN201999776U (en) * 2011-01-17 2011-10-05 江苏蓝星环保科技有限公司 Wastewater treatment micro electrolysis device
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CN105174485A (en) * 2015-11-03 2015-12-23 安徽洋森环保节能科技有限公司 Waveform underflow artificial wetland treatment system

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US20010045383A1 (en) * 1999-04-16 2001-11-29 Coffman Larry Steven Method and apparatus for treating stormwater runoff
CN201999776U (en) * 2011-01-17 2011-10-05 江苏蓝星环保科技有限公司 Wastewater treatment micro electrolysis device
CN103232143A (en) * 2013-05-28 2013-08-07 浩蓝环保股份有限公司 Ecological combined device for treating ammonia-nitrogen sewage
CN103241907A (en) * 2013-05-28 2013-08-14 无锡百奥源生态环保科技有限公司 Method and device for treating organic oil-containing wastewater
CN105174485A (en) * 2015-11-03 2015-12-23 安徽洋森环保节能科技有限公司 Waveform underflow artificial wetland treatment system

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107879477A (en) * 2017-10-31 2018-04-06 河海大学 Collapsible multistage Inner electrolysis drowned flow artificial wet land
CN112047576A (en) * 2020-09-10 2020-12-08 河海大学 Device for removing resistance genes and nitrogen and phosphorus in wastewater of livestock and poultry farm and operation process thereof

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