CN105481102A - Upgrading modification method for improving water quality of sewage effluent through microorganism purification technology - Google Patents
Upgrading modification method for improving water quality of sewage effluent through microorganism purification technology Download PDFInfo
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- 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
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
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- 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
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
- C02F3/342—Biological treatment of water, waste water, or sewage characterised by the microorganisms used characterised by the enzymes used
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- 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
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
- C02F3/348—Biological treatment of water, waste water, or sewage characterised by the microorganisms used characterised by the way or the form in which the microorganisms are added or dosed
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/06—Nutrients for stimulating the growth of microorganisms
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Abstract
The invention discloses an upgrading modification method for improving the water quality of sewage effluent through the microorganism purification technology and belongs to the technical field of microorganism water purification. The method sequentially includes the following steps that firstly, dominant bacterial communities carried by sewage are screened in situ so that a microorganism functional bacterial agent can be obtained; secondly, an amplified microorganism preparation is put in the sewage; thirdly, the aeration work condition is continuously increased; fourthly, the aeration work condition is decreased step by step; fifthly, returned sludge is increased. The microbial preparation is put in the sewage to stabilize balance of a biochemical system by adjusting running parameters of the biochemical system of a sewage plant, the generation amount of sludge is reduced, TN, TP, BOD, COD and other substances in metabolic water are digested, stable self-purification living organisms are cultivated, integrity of a food chain is guaranteed, water is purified, water quality reaches the standard, and plant capacity expansion is achieved. By means of the method, the capacity of the sewage plant can be efficiently and stably expanded at low cost in an energy-conservation mode.
Description
Technical field
The invention belongs to microorganism water purification technical field, be specifically related to a kind of remodeling method of promoting to a higher rank using microbially decontaminate skill upgrading sewage effluents water quality.
Background technology
China is populous nation, uses water big country, lack of water big country, water resource assignment is uneven, by in by the end of March, 2014, National urban, county add up to build up sewage work 3622, design sewage treatment capacity about 1.53 billion cubic meters/day, along with the increase of Quantity, the expansion of construction scale, and the continuous enhancing of processing power, sewage work has played vital role improving in town environment quality.But the phenomenons such as meanwhile, treatment facility operation ratio is low, effluent quality is not up to standard also exist in various degree, have impact on the performance of sewage work's social benefit.Front end sewage can not be collected entirely, end contamination thing can not process entirely is perplex two hang-ups of China's Sewage Plant in operation process at present, the large blowdown main body that caused sewage work itself to become.
Existing Sewage Plant is mostly taked to drop into a large amount of flocculation agent and is carried out flocculation sediment, increase sludge yield, promote carbon source simultaneously and carry out COD capacity boost, steady running, some enterprises take the mode increasing aeration to reduce TN or the TP content in water body, but effect is all not good enough, wastes resource simultaneously, produce chemical pollution and sludge pollution, again for environment adds burden.And fund input is huge, the water quality of the sewage work in each city can not reach sewage drainage standard or the Treated sewage reusing standard of national requirements.
Part water factory is had to adopt the investing method increasing hardware facility, and this does not fundamentally promote storage capacity, its part increased also can cause the mud generation of water factory to increase, water quality discharge is not up to standard, mud pollutes the environment simultaneously, therefore most of space that its capacity increases is divided and is given mud, and the ability of disposing of sewage is not improved from it seems for a long time.
Summary of the invention
According to demand and the deficiency in above-mentioned field, the invention provides a kind of remodeling method of promoting to a higher rank using microbially decontaminate skill upgrading sewage effluents water quality.The present invention is by regulating the operating parameter of the biochemical system of Sewage Plant, add the balance that microbial preparation carrys out stable biochemical system, reduce the generation of mud, the materials such as TN, TP, BOD, COD in digestion and metabolism water body, cultivate stable self-purification organism, ensure the complete of food chain, make water body purification water quality reaching standard, plant area's dilatation.The inventive method can be efficient, stable, energy-conservation, low cost dilatation Sewage Plant.
Technical scheme of the present invention is as follows:
Use a remodeling method of promoting to a higher rank for microbially decontaminate skill upgrading sewage effluents water quality, it is characterized in that, comprise the steps: in order
(1) dominant microflora entrained by In situ Screening sewage self: extract sewage sample from sewage effluents mouth, with inducing microbial flora preparation, bioremediation agents, after biologic detoxication agent mixes, carry out the amplification of pollution treatment functional flora again, and then in amplified sample, throw in zymin obtain microbial function microbial inoculum;
(2) prepare and throw in the mixing microorganisms preparation after amplification: step (1) being obtained microbial function microbial inoculum and inducing microbial flora preparation, bioremediation agents, zymin, biologic detoxication agent is carried out being mixed to get mixing microorganisms microbial inoculum, carries out sprinkling throw in water outlet link;
(3) continue to increase aeration operating mode: the aeration rate of aeration link in adjustment, increase the dissolved oxygen in water body, slow down the velocity of flow of sewage simultaneously;
(4) reduce aeration operating mode step by step: after sewage enters anaerobism link, then drop into the mixing microorganisms microbial inoculum described in step (2), reduce the DO content of water body;
(5) returned sluge is increased: improve sludge reflux ratio and reflow's cycle.
The sewage sample extracted in step (1), with inducing microbial flora preparation, bioremediation agents, the volume ratio that biologic detoxication agent is carried out mixing is: 1-3:4.8-5.0:4-7.5:6-11, and the standard of throwing in zymin in described amplification sample is 1 cube of water 100ml zymin.
Described sewage sample, with inducing microbial flora preparation, bioremediation agents, the volume ratio that biologic detoxication agent is carried out mixing is: 1:4.8:7.5:11.
The solubility of described microbial function microbial inoculum is 0.01 × 10
9-0.015 × 10
9g/m
3.
Microbial function bacterium described in step (2) and inducing microbial flora preparation, bioremediation agents, the volume ratio that biologic detoxication agent is carried out mixing is: 3:3 ~ 7:5 ~ 8:4-6:9 ~ 13.
In step (3), the aeration rate regulating aeration link is 5 times that originally ran link to make the oxygen level of water body, dissolved oxygen in increase water body is to make water oxygen level between 6.0-7.0, and the cycle is 1-2 days, slows down the velocity of flow of sewage to 30% of original flow velocity simultaneously.
The standard putting into mixing microorganisms microbial inoculum in step (4) is that every cube of water body adds 3 liters of thalline to reduce the DO content of water body.
Improving at the sludge retention time of amphimicrobian link and anaerobism link is 2 ~ 4 times of original water factory link, and the sludge reflux amount of raising oxygen consumption link is original 3 ~ 5 times.
Described the fungal elicitor is Semen Maydis powder, glucose, amino acid finished product are formed by directly mixing with mass ratio 1:1:1 or described the fungal elicitor is starch, amino acid finished product is formed by directly mixing with mass ratio 1:1;
Described bioremediation agents is mixed according to volume 3-4:2-5:1.5-3.5:4-5.6:4-7 by the fish raw meat cyanobacteria of lactobacillus, yeast flora, bacillus pumilus group, the ferment thread flora being and the photosynthetic bacteria group played the role of a nucleus;
The glucose isomerase of described zymin main component to be mass ratio be 1:3:1.5, cellulase and Bi Ya enzyme, or the glucose powder of main component to be mass ratio be 1:3:1.5, cellulase and Bi Ya enzyme;
Described microorganism solution toxic agent comprises cholinesterase reactivator and/or cholilytic drug and/or dimercaptopropansulfonate sodium and/or oxygen.
Be adjusted to 3-4 month at the beginning of water factory, just steady running afterwards, screen a bacterial classification each week during initial adjustment in step (1), carry out functional flora renewal, within every 2 months, to screen after steady running;
In step (2), during initial adjustment, first sewage 1 cube of water body throws in the mixing microorganisms microbial inoculum of 1 liter, and second batch sewage 1 cube of water body throws in the mixing microorganisms microbial inoculum of 0.7 liter; 3rd batch of sewage, 1 cube of water body adds the mixing microorganisms microbial inoculum of 0.5 liter, after this mixing microorganisms microbial inoculum adding 0.5 liter according to 1 cube of water body every day carries out lasting 3 months, after steady running, every month throws in once, and input ratio is the mixing microorganisms microbial inoculum that 1 cube of water body throws in 1 liter;
In step (3), during initial adjustment, loop cycle is 5 days every months, and 3 months is 15 days, and after steady running, aeration link reduces to 1/2 when not debugging;
In step (4), 10 days initial adjustment periods dropped into mixed once microbiobacterial agent, monthly dropped into mixed once microbiobacterial agent after steady running.
The fungal elicitor is a kind of quick active, has the microorganism sugar preparations carrier of water remediation function, can effectively allow bioremediation agents flora activate, and ensures that it enters logarithmic phase fast and grows.Main component is Semen Maydis powder, glucose, amino acid/11: 1:1 (quality proportioning).Bioremediation agents, be mainly carrier with microorganism, have some active enzyme composite floras, it is mainly based on amphimicrobe; By lactobacillus, yeast flora, bacillus pumilus group, ferment the thread flora being and the photosynthetic bacteria group played the role of a nucleus;
The zymin used in the present invention mainly comprises glucose isomerase, and (substitute can meet the demands equally with three nine-day periods after the winter solstice 999 iron zinc calcium glucose powder, the common glucose sugar that pharmacy buys is just passable, cellulase, and than sub-enzyme, the quality proportioning of three is 1:3:1.5;
Microorganism solution toxic agent, mainly based on chemical agent, prevent heavy metal class and poisonous chemicals from destroying the functional flora having cultivated out in water, microorganism solution toxic agent is selected from cholinesterase reactivator and cholilytic drug (organophosphate poisoning toxinicide), dimercaptopropansulfonate sodium (removal heavy metal) oxygen (increasing the concentration of DO in water).
In step (1), preferably, sewage sample is extracted from Sewage Plant fine fack water outlet, with inducing microbial flora preparation, bioremediation agents, biologic detoxication agent mixes according to 1:4.8:7.5:11, be placed on the amplification that specific nutrient chemical carries out pollution treatment functional flora, put into zymin in water to carry out equal proportion according to the standard of 1 cube of 100ml and adjust input and enter amplified sample (zymin is mainly microorganism and increases fast and provide power to increase survival volume simultaneously, can grow fast), by the murder by poisoning restraining effect of the microbial preparation of input, toxic substance in water body is inhibited, set up the control environment of functional flora.Be 3-4 month during water factory's initial adjustment, screen a bacterial classification each week, carry out functional flora renewal, within 3-4 month, enter steady operation period later, within every 2 months, screen.
In step (2), cultivated and the amplification of 3 days through 8-9 days, to turn out indigenous function yeast be solubility is 0.1 × 10
9-0.15 × 10
9g/m
3microbial function microbial inoculum, at the same time with inducing microbial flora preparation, bioremediation agents, (zymin is herein the stimulant of accelerate growth of microorganism to zymin, quick adaptation and the breeding of microorganism can be improved) biologic detoxication agent carries out mixing match and is, the ratio of 3:3 ~ 7:5 ~ 8:4-6:9 ~ 13 carries out the proportioning in actual motion, all be added in fine fack water outlet link, the ratio of throwing in 1 liter of mix bacterium agent according to 1 cube of water body of water body volume carries out automatic spraying by equipment.Mixing microorganisms microbial inoculum adds by manually arranging mixing automatically in administration apparatus.Not employment participates in dispensing link.After new a collection of Sewage Plant is marched into the arena, the ratio of throwing in 0.7 liter according to 1 cube of water body is carried out; The microbial inoculum that 3rd batch of sewage adds 0.5 liter according to 1 cube of water body after marching into the arena is thrown in, and after this so continue 3 months every day, after stable, for every month throws in once, input ratio is that the ratio that 1 cube of water body throws in 1 liter is carried out.
In step (3), after mixing microorganisms microbial inoculum is thrown in, the aeration rate of aeration link in quick adjustment Sewage Plant, early stage makes the oxygen level of water body in Sewage Plant be 5 times that originally ran link, dissolved oxygen in quick increase water body is containing between the oxygen level 6.0-7.0 made in water, and the cycle is 1-2 days, and the DO content in water is increased fast, improve hyphomycetic content, now sludge content expands to some extent.Slow down the velocity of flow of Sewage Plant sewage simultaneously.This link loop cycle is 5 days every months, is 15 days just runing 3 months periods, until run well, aeration link reduces to 1/2 when not debugging.
In step (4), after sewage enters anaerobism link, then put into the microbiobacterial agent mixed, adding 3 liters of thalline according to every cube of water body is standard, reduces the DO content of water body, zoogleic generation of increasing.The input of mixed bacteria liquid is that body automatization is thrown in, without the need to artificial participation.In debugging initial stage 3-4 month the inside, adding mix bacterium agent according to 3 liters, 1 cube of water body adds once in 10 days, add 3 liters of mix bacterium agents according to 1 cube of water body every month after steady running, because Sewage Plant has return-flow system, interpolation mix bacterium agent is that the microbial inoculum of loss supplements.
In described step (5), after step (4), the volume of mud obviously reduces, thread flora is obviously suppressed, zoogloea generates in a large number, decrease sludge volume, but also have partial sludge well not reacted simultaneously, improve sludge reflux ratio and reflow's cycle, improving in the residence time of amphimicrobian link and anaerobism link is 2 ~ 4 times of original water factory link, the quantity of reflux improving oxygen consumption link is original 3 ~ 5 times, significantly can reduce the generation of active sludge like this, improve the running space of water factory, improve the working efficiency of denitrification link, improve the content of polyP bacteria, reduce TN, the content of TP.The water quality of Sewage Plant waits until the standard promoting and can reach one-level A, and the minimizing of mud can improve the storage capacity of water factory greatly, and sludge emission reduction amount reduced 75% than originally.Preferably, described step (5) improves sludge reflux ratio and reflow's cycle, improving in the residence time of amphimicrobian link and anaerobism link is 2 ~ 4 times of original water factory link, the quantity of reflux improving oxygen consumption link is original 3 ~ 5 times, significantly can reduce the generation of active sludge like this, improve the running space of water factory.
The present invention by dropping into biotechnological formulation, and regulates the operational parameter of each operation link and realizes the discharge of water quality high-quality, and mud decrement discharge, reduces running cost.
The present invention, when not increasing Sewage Plant Infrastructure, by regulating operating parameter, dropping into In situ Screening preponderant functional bacteria out and mixing microorganisms preparation of the present invention, carrying out dilatation and transformation of promoting to a higher rank.The volume of original active sludge can be made to reduce for the present invention and weight reduces, sludge content reduces 75%, the levels of emissions of raising water factory can be made to rise to one-level A from one-level B simultaneously, the dependence that Sewage Plant is avoided chemical agent completely can be enable simultaneously, enable water quality safety dumping, predigested running technique, save energy.In Sewage Plant is administered, microbial inoculum used is the microbial bacteria to environmental beneficial place, without any foreign bacteria.Microorganism growth agent is plant extraction liquid, and microorganism solution toxic agent is natural mineral prime element, without any chemical reagent.
The present invention takes microbially decontaminate technology to promote to a higher rank plant retrofit to Sewage Plant with regulating the method for Sewage Plant operating parameter, only need debugging in 3-4 month early stage, after later stage steady running, only need suitable input mix bacterium agent, without the need to other workload, a large amount of construction work need not be dropped into and carry out water factory's amplification, only need add water factory's service ability on the basis of existing facility, play the effect of Sewage Plant dilatation, improve water factory's economic worth.
The present invention's beneficial effect is compared with prior art:
(1) decrease the use of chemical flocculation reagent, reduce the daily expenditure that water factory runs;
(2) decrease investment and the land use amount of the hardware facility of Sewage Plant, save land resources;
(3) Sewage Plant different from the past is promoted to a higher rank method, and the present invention regulates operating parameter and In situ Screening native country functional flora and biological cleanser by physics, and used in combination to make to run water factory up to standard, adds storage capacity simultaneously;
(4) greatly reduce the generation of mud, save sludge treatment cost, improve the operation space of water factory, avoid the secondary pollution that mud brings.
Embodiment
Following embodiment is provided to be to understand the present invention further better; be not limited to described preferred forms; content of the present invention and protection domain are not construed as limiting; anyone is under enlightenment of the present invention or any and the present invention the present invention being carried out combining with the feature of other prior aries and draw is identical or akin product or method, all drops within protection scope of the present invention.
If do not specialize, the conventional means that technique means used in embodiment is well known to those skilled in the art.Material used in the present invention, if no special instructions, is commercial sources and obtains, or prepare with normal experiment method; Test method used in embodiment, if no special instructions, is normal experiment method well known to those skilled in the art.
The source of agents useful for same of the present invention:
Semen Maydis powder: edible corn starch is bought in supermarket;
Glucose: the medical glucose that pharmacy buys;
Amino acid: be available commercially from Wuhan Sai Chuan Science and Technology Ltd.;
Starch: the common whole wheat flour that supermarket is bought can meet the demands,
Milk-acid bacteria: lactobacterium acidophilus, latin name:
lactobacillusacidophilus, preserving number: ACCC10637;
Yeast: yeast, latin name:
saccharomycessp., preserving number: CCREMSDMCC061418;
Bacillus pumilus: latin name:
bacilluspumilus, preserving number: ACCC10239;
The thread fungus of fermentation system: Trichosporon asahii, latin name:
trichosporonasahii, preserving number: MCCC2E00911;
The photosynthetic bacteria played the role of a nucleus is fish raw meat cyanobacteria, latin name:
anabaenasp., preserving number: CCAM030001;
Glucose isomerase is available commercially from Wuhan Nuo Hui medication chemistry company limited, product specification: food grade, content: 99, the packing of product: 5kg, and this reagent replaces can meeting requirement of the present invention equally with three nine-day periods after the winter solstice 999 iron zinc calcium glucose powder, is commonly purchased; Or the common glucose Icing Sugar that pharmacy buys also can.
Cellulase: common being purchased of experimental food level reagent enzyme 50,000 u/g unit can meet the demands.
Than sub-enzyme: common being purchased can meet the demands.
Cholinesterase reactivator, cholilytic drug, dimercaptopropansulfonate sodium source is for being purchased, and common being purchased can meet requirement of the present invention.
Also there is preservation in this laboratory of above bacterial classification, and applicant states: can to the confirmatory experiment of public's Free distribution for necessity in Two decades years from the applying date.But it should be understood that realization of the present invention and do not rely on above-mentioned title or number the bacterial strain represented, each bacterial strain can adopt other bacterial strain in similar bacterial classification to substitute, such as, milk-acid bacteria can adopt other lactic bacterium strains to substitute.Therefore, be not used in this strain name provided or numbering and limit the scope of the invention.
The fungal elicitor main component used in the embodiment of the present invention is: Semen Maydis powder, glucose, amino acid/11: 1:1 (quality proportioning).
Bioremediation agents is used to be mixed according to volume ratio 3-4:2-5:1.5-3.5:4-5.6:4-7 by the thread flora of lactobacillus, yeast flora, bacillus pumilus group, fermentation system and the photosynthetic bacteria group that plays the role of a nucleus in the embodiment of the present invention;
The zymin used in the present invention mainly comprises glucose isomerase, and (substitute can meet the demands equally with three nine-day periods after the winter solstice 999 iron zinc calcium glucose powder, the common glucose sugar that pharmacy buys is just passable, cellulase, and than sub-enzyme, the quality proportioning of three is 1:3:1.5;
Microorganism solution toxic agent is used to be selected from cholinesterase reactivator and cholilytic drug (organophosphate poisoning toxinicide) in the embodiment of the present invention, dimercaptopropansulfonate sodium (removal heavy metal), oxygen (increasing the concentration of DO in water).
embodiment 1. uses the example 1 of microbially decontaminate skill upgrading sewage effluents water quality
A. the method implementation step of example 1
Experiment Sewage Plant is 1, sewage sample is extracted from Sewage Plant fine fack water outlet, with inducing microbial flora preparation, bioremediation agents, biologic detoxication agent carries out volume mixture according to 1:4.8:7.5:11, carry out the amplification of pollution treatment functional flora, and then the standard by 1 cube of water 100ml in amplification sample throws in zymin.Be 3-4 month during water factory's initial adjustment, screen a bacterial classification each week as stated above, carry out functional flora renewal, within 3-4 month, enter steady operation period later, within every 2 months, screen.
Cultivated and the amplification of 3 days through 8-9 days, to turn out indigenous function yeast be solubility is 0.1 × 10
9-0.15 × 10
9g/m
3microbial function microbial inoculum.In actual motion, amplification gained microbial function microbial inoculum again with inducing microbial flora preparation, bioremediation agents, zymin, biologic detoxication agent is carried out being mixed to get mixing microorganisms microbial inoculum, mixing match is the volume ratio of 3:4:7:5:11, throws in the standby input of ratio of 1L mixing microorganisms microbial inoculum according to water body volume 1 cube of water body.
After new a collection of sewage is marched into the arena, the ratio of throwing in 0.7 liter according to 1 cube of water body is carried out; The mixing microorganisms microbial inoculum that 3rd batch of sewage adds 0.5 liter according to 1 cube of water body after marching into the arena is thrown in, and after this so continue 3 months every day, after stable, for every month throws in once, input ratio is that the ratio that 1 cube of water body throws in 1 liter is carried out.
After mixing microorganisms microbial inoculum is thrown in, the aeration rate of aeration link in quick adjustment Sewage Plant, early stage makes the oxygen level of water body in Sewage Plant be 5 times that originally ran link, then the dissolved oxygen content increased in water body makes between the oxygen level 6.5 in water fast, cycle is 1-2 days, and the DO content in water is increased fast.Slow down the velocity of flow of Sewage Plant sewage to original 30% simultaneously.This link loop cycle is 5 days every months, is 15 days just runing 3 months periods, until run well, aeration link reduces to 1/2 when not debugging.
After sewage enters anaerobism link, then put into mixing microorganisms microbial inoculum, adding 3 liters of thalline according to every cube of water body is standard, reduces the DO content of water body, zoogleic generation of increasing.The input of mixed bacteria liquid is that body automatization is thrown in, without the need to artificial participation.In debugging initial stage 3-4 month the inside, add mix bacterium agent according to 3 liters, 1 cube of water body, within every 10 days, add once, after steady running, add 3 liters of mix bacterium agents according to 1 cube of water body every month, because Sewage Plant has return-flow system, interpolation mix bacterium agent is that the microbial inoculum of loss supplements.
After step (4), the volume of mud obviously reduces, thread flora is obviously suppressed, zoogloea generates in a large number, decrease sludge volume, but also have partial sludge well not reacted simultaneously, improve sludge reflux ratio and reflow's cycle, improving in the residence time of amphimicrobian link and anaerobism link is 4 times of original water factory link, the quantity of reflux improving oxygen consumption link is original 4 times, significantly can reduce the generation of active sludge like this, improve the running space of water factory, improve the working efficiency of denitrification link, improve the content of polyP bacteria, reduce TN, the content of TP.The water quality of Sewage Plant waits until the standard promoting and can reach one-level A, and the minimizing of mud can improve the storage capacity of water factory greatly, and sludge emission reduction amount reduced 75% than originally.
B. the compliance test result of example 1
| Index factor | Before process (mg/L) | After process (mg/L) |
| COD | 452.94 | 45.22 |
| Ammonia nitrogen class | 52.94 | 37.07 |
| TP | 3.18 | 0.36 |
| TN | 1.98 | 0.93 |
Embodiment 2. uses the example 2 of microbially decontaminate skill upgrading sewage effluents water quality
A. the method implementation step of example 2
Experiment Sewage Plant is 2, sewage sample is extracted from Sewage Plant fine fack water outlet, with inducing microbial flora preparation, bioremediation agents, biologic detoxication agent mixes according to volume ratio 1:3:5:7, carry out the amplification of pollution treatment functional flora, and then the standard by 1 cube of water 100ml in amplification sample throws in zymin.Be 3-4 month during water factory's initial adjustment, screen a bacterial classification each week as stated above, carry out functional flora renewal, within 3-4 month, enter steady operation period later, within every 2 months, screen.
Cultivated and the amplification of 3 days through 8-9 days, to turn out indigenous function yeast be solubility is 0.1 × 10
9-0.15 × 10
9g/m
3microbial function microbial inoculum, at the same time with inducing microbial flora preparation, bioremediation agents, zymin, biologic detoxication agent mixes, proportioning is that the volume ratio of 3:3:8:4:9 carries out proportioning, all be added in fine fack water outlet link, the ratio of throwing in 1 liter of mixing microorganisms microbial inoculum according to 1 cube of water body of water body volume carries out automatic spraying by equipment.After new a collection of Sewage Plant is marched into the arena, the ratio of throwing in 0.7 liter according to 1 cube of water body is carried out; The ratio that 3rd batch of sewage adds 0.5 liter according to 1 cube of water body after marching into the arena is thrown in, and after this so continue 3 months every day, after stable, for every month throws in once, input ratio is that the ratio that 1 cube of water body throws in 1 liter is carried out.
After mixing microorganisms microbial inoculum is thrown in, the aeration rate of aeration link in quick adjustment Sewage Plant, early stage makes the oxygen level of water body in Sewage Plant be 5 times that originally ran link, then dissolved oxygen in water body is increased fast containing between the oxygen level 6.0 made in water, cycle is 2 days, DO content in water is increased fast.Slow down the velocity of flow of Sewage Plant sewage to original 30% simultaneously.This link loop cycle is 5 days every months, is 15 days just runing 3 months periods, until run well, aeration link reduces to 1/2 when not debugging.
After sewage enters anaerobism link, then put into mixing microorganisms microbial inoculum, adding 3 liters of thalline according to every cube of water body is standard, reduces the DO content of water body, zoogleic generation of increasing.The input of mixing microorganisms microbial inoculum is that body automatization is thrown in, without the need to artificial participation.In debugging initial stage 3-4 month the inside, mixing microorganisms microbial inoculum 10 days is added once according to 3 liters, 1 cube of water body, add 3 liters of mixing microorganisms microbial inoculums according to 1 cube of water body every month after steady running, because Sewage Plant has return-flow system, interpolation microbiobacterial agent is that the microbial inoculum of loss supplements.
After step (4), the volume of mud obviously reduces, thread flora is obviously suppressed, zoogloea generates in a large number, decrease sludge volume, but also have partial sludge well not reacted simultaneously, improve sludge reflux ratio and reflow's cycle, improving in the residence time of amphimicrobian link and anaerobism link is 2 ~ 4 times of original water factory link, the quantity of reflux improving oxygen consumption link is original 3 ~ 5 times, significantly can reduce the generation of active sludge like this, improve the running space of water factory, improve the working efficiency of denitrification link, improve the content of polyP bacteria, reduce TN, the content of TP.The water quality of Sewage Plant waits until the standard promoting and can reach one-level A, and the minimizing of mud can improve the storage capacity of water factory greatly, and sludge emission reduction amount reduced 75% than originally.
B. the compliance test result of example 2
embodiment 3. uses the example 3 of microbially decontaminate skill upgrading sewage effluents water quality
A. the method implementation step of example 3
Experiment Sewage Plant is 3, sewage sample is extracted from Sewage Plant fine fack water outlet, with inducing microbial flora preparation, bioremediation agents, biologic detoxication agent mixes according to 1:4:5.7:6, carry out the amplification of pollution treatment functional flora, and then the standard by 1 cube of water 100ml in amplification sample throws in zymin.Be 3-4 month during water factory's initial adjustment, each week screens a bacterial classification according to said procedure, carries out functional flora renewal, within 3-4 month, enters steady operation period later, within every 2 months, screens.
Cultivated and the amplification of 3 days through 8-9 days, to turn out indigenous function yeast be solubility is 0.1 × 10
9-0.15 × 10
9g/m
3microbial function microbial inoculum, at the same time with inducing microbial flora preparation, bioremediation agents, zymin, biologic detoxication agent mixes, proportioning is that the volume ratio of 3:7:5:6:13 carries out proportioning, all be added in fine fack water outlet link, the ratio of throwing in 1 liter of mixing microorganisms microbial inoculum according to 1 cube of water body of water body volume carries out automatic spraying by equipment.Mixing microorganisms microbial inoculum adds by manually arranging mixing automatically in administration apparatus.Not employment participates in dispensing link.After new a collection of Sewage Plant is marched into the arena, the ratio of throwing in 0.7 liter according to 1 cube of water body is carried out; The microbial inoculum that 3rd batch of sewage adds 0.5 liter according to 1 cube of water body after marching into the arena is thrown in, and after this so continue 3 months every day, after stable, for every month throws in once, input ratio is that the ratio that 1 cube of water body throws in 1 liter is carried out.
After mixing microorganisms microbial inoculum is thrown in, the aeration rate of aeration link in quick adjustment Sewage Plant, early stage makes the oxygen level of water body in Sewage Plant be 5 times that originally ran link, then dissolved oxygen in water body is increased fast containing between the oxygen level 7.0 made in water, cycle is 1-2 days, DO content in water is increased fast.Slow down the velocity of flow of Sewage Plant sewage to original 30% simultaneously.This link loop cycle is 5 days every months, is 15 days just runing 3 months periods, until run well, aeration link reduces to 1/2 when not debugging.
After sewage enters anaerobism link, then put into mixing microorganisms microbial inoculum, adding 3 liters of thalline according to every cube of water body is standard, reduces the DO content of water body, zoogleic generation of increasing.The input of mixing microorganisms microbial inoculum is that body automatization is thrown in, without the need to artificial participation.In debugging initial stage 3-4 month the inside, mixing microorganisms microbial inoculum 10 days is added once according to 3 liters, 1 cube of water body, add 3 liters of mixing microorganisms microbial inoculums according to 1 cube of water body every month after steady running, because Sewage Plant has return-flow system, interpolation mixing microorganisms microbial inoculum is that the microbial inoculum of loss supplements.
After step (4), the volume of mud obviously reduces, thread flora is obviously suppressed, zoogloea generates in a large number, decrease sludge volume, but also have partial sludge well not reacted simultaneously, improve sludge reflux ratio and reflow's cycle, improving in the residence time of amphimicrobian link and anaerobism link is 2 ~ 4 times of original water factory link, the quantity of reflux improving oxygen consumption link is original 3 ~ 5 times, significantly can reduce the generation of active sludge like this, improve the running space of water factory, improve the working efficiency of denitrification link, improve the content of polyP bacteria, reduce TN, the content of TP.The water quality of Sewage Plant waits until the standard promoting and can reach one-level A, and the minimizing of mud can improve the storage capacity of water factory greatly, and sludge emission reduction amount reduced 75% than originally.
B. the compliance test result of example 3
| Index factor | Before process | After process |
| COD | 449.6 | 40.16 |
| Ammonia nitrogen class | 53.74 | 26.72 |
| TP | 3.06 | 0.40 |
| TN | 1.86 | 1.0 |
Claims (10)
1. use a remodeling method of promoting to a higher rank for microbially decontaminate skill upgrading sewage effluents water quality, it is characterized in that, comprise the steps: in order
(1) dominant microflora entrained by In situ Screening sewage self: extract sewage sample from sewage effluents mouth, with inducing microbial flora preparation, bioremediation agents, after biologic detoxication agent mixes, carry out the amplification of pollution treatment functional flora again, and then in amplified sample, throw in zymin obtain microbial function microbial inoculum;
(2) prepare and throw in the mixing microorganisms preparation after amplification: step (1) being obtained microbial function microbial inoculum and inducing microbial flora preparation, bioremediation agents, zymin, biologic detoxication agent is carried out being mixed to get mixing microorganisms microbial inoculum, carries out sprinkling throw in water outlet link;
(3) continue to increase aeration operating mode: the aeration rate of aeration link in adjustment, increase the dissolved oxygen in water body, slow down the velocity of flow of sewage simultaneously;
(4) reduce aeration operating mode step by step: after sewage enters anaerobism link, then drop into the mixing microorganisms microbial inoculum described in step (2), reduce the DO content of water body;
(5) returned sluge is increased: improve sludge reflux ratio and reflow's cycle.
2. remodeling method of promoting to a higher rank according to claim 1, it is characterized in that, the sewage sample extracted in step (1), with inducing microbial flora preparation, bioremediation agents, the volume ratio that biologic detoxication agent is carried out mixing is: 1-3:4.8-5.0:4-7.5:6-11, and the standard of throwing in zymin in described amplification sample is 1 cube of water 100ml zymin.
3. remodeling method of promoting to a higher rank according to claim 2, is characterized in that, described sewage sample, and with inducing microbial flora preparation, bioremediation agents, the volume ratio that biologic detoxication agent is carried out mixing is: 1:4.8:7.5:11.
4. remodeling method of promoting to a higher rank according to claim 3, is characterized in that, the solubility of described microbial function microbial inoculum is 0.01 × 10
9-0.015 × 10
9g/m
3.
5. remodeling method of promoting to a higher rank according to claim 4, it is characterized in that, microbial function bacterium described in step (2) and inducing microbial flora preparation, bioremediation agents, the volume ratio that biologic detoxication agent is carried out mixing is: 3:3 ~ 7:5 ~ 8:4-6:9 ~ 13.
6. remodeling method of promoting to a higher rank according to claim 5, it is characterized in that, in step (3), the aeration rate regulating aeration link is 5 times that originally ran link to make the oxygen level of water body, dissolved oxygen in increase water body is to make water oxygen level between 6.0-7.0, cycle is 1-2 days, slows down the velocity of flow of sewage to 30% of original flow velocity simultaneously.
7. remodeling method of promoting to a higher rank according to claim 6, is characterized in that, the standard putting into mixing microorganisms microbial inoculum in step (4) is that every cube of water body adds 3 liters of thalline to reduce the DO content of water body.
8. remodeling method of promoting to a higher rank according to claim 7, is characterized in that, improving at the sludge retention time of amphimicrobian link and anaerobism link is 2 ~ 4 times of original water factory link, and the sludge reflux amount improving oxygen consumption link is original 3 ~ 5 times.
9. remodeling method of promoting to a higher rank according to claim 8, it is characterized in that, described the fungal elicitor is Semen Maydis powder, glucose, amino acid finished product be formed by directly mixing with mass ratio 1:1:1 or described the fungal elicitor be starch, amino acid finished product is formed by directly mixing with mass ratio 1:1; Described bioremediation agents is mixed according to volume ratio 3-4:2-5:1.5-3.5:4-5.6:4-7 by the fish raw meat cyanobacteria (Anabaenasp.strainPCC7120) of lactobacillus, yeast flora, bacillus pumilus group, the ferment thread flora being and the photosynthetic bacteria group played the role of a nucleus;
The glucose isomerase of described zymin main component to be mass ratio be 1:3:1.5, cellulase and Bi Ya enzyme, or the glucose powder of main component to be mass ratio be 1:3:1.5, cellulase and Bi Ya enzyme;
Described microorganism solution toxic agent comprises cholinesterase reactivator and/or cholilytic drug and/or dimercaptopropansulfonate sodium and/or oxygen.
10. remodeling method of promoting to a higher rank according to claim 9, is characterized in that, is adjusted to 3-4 month at the beginning of water factory, just steady running afterwards, screen a bacterial classification each week during initial adjustment in step (1), carry out functional flora renewal, within every 2 months, to screen after steady running;
In step (2), during initial adjustment, first sewage 1 cube of water body throws in the mixing microorganisms microbial inoculum of 1 liter, and second batch sewage 1 cube of water body throws in the mixing microorganisms microbial inoculum of 0.7 liter; 3rd batch of sewage, 1 cube of water body adds the mixing microorganisms microbial inoculum of 0.5 liter, after this mixing microorganisms microbial inoculum adding 0.5 liter according to 1 cube of water body every day carries out lasting 3 months, after steady running, every month throws in once, and input ratio is the mixing microorganisms microbial inoculum that 1 cube of water body throws in 1 liter;
In step (3), during initial adjustment, loop cycle is 5 days every months, and 3 months is 15 days, and after steady running, aeration link reduces to 1/2 when not debugging;
In step (4), 10 days initial adjustment periods dropped into mixed once microbiobacterial agent, monthly dropped into mixed once microbiobacterial agent after steady running.
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| CN110790457A (en) * | 2019-11-17 | 2020-02-14 | 南通职业大学 | Low-toxicity treatment process for trichlorfon wastewater |
| CN112851033A (en) * | 2021-01-26 | 2021-05-28 | 清华大学 | Excessive flow-converging sewage treatment method based on flocculation precipitation |
| CN115180725A (en) * | 2022-08-02 | 2022-10-14 | 中绿时代(北京)生物科技有限公司 | Biological agent for sewage treatment BEBR (biological aerated biofilm reactor) system and application |
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