CN109607964A - A kind of method of efficient process wastewater from chemical industry - Google Patents
A kind of method of efficient process wastewater from chemical industry Download PDFInfo
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- CN109607964A CN109607964A CN201910012376.7A CN201910012376A CN109607964A CN 109607964 A CN109607964 A CN 109607964A CN 201910012376 A CN201910012376 A CN 201910012376A CN 109607964 A CN109607964 A CN 109607964A
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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
- C02F3/30—Aerobic and anaerobic processes
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
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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
Abstract
A kind of method that the present invention discloses efficient process wastewater from chemical industry, the techniques such as adjusting tank, hydrolysis acidification pool, anoxic pond, aerobic tank, secondary settling tank including sewage treatment plant, which is characterized in that seed sludge is added in the technique；Microorganism is the main body of sewage purification, by adjust tank, hydrolysis acidification pool, the pond AO activated sludge culture, select and tame as invent innovative point, it makes full use of engineering to have ready conditions, take the project slash such as interim activity sludge reflux when necessary, it solves biochemical system and starts slow, low efficiency technical problem generally existing in the industry, improve biochemical anaerobic technique, B/C ratio is improved, to promote the degradation efficiency of biochemical system；The present invention can effectively handle wastewater from chemical industry, make amount of sludge reach design requirement in the shortest time as far as possible.
Description
Technical field
The invention belongs to water-treatment technology fields, and in particular to a kind of method of efficient process wastewater from chemical industry.
Background technique
Wastewater from chemical industry type and complicated component, sewage contain a large amount of p-methylbenzoic acids, terephthalic acid (TPA), other benzene classes,
The difficult for biological degradation polluter such as phenols, Cyanides, biodegradability is poor, pre-processes through each enterprise's on-site Sewage Disposal
Afterwards, most of biodegradable, part Recalcitrant chemicals have been removed, and the biodegradable organic pollutant of sewage effluent contains
Measure extremely low, remaining is to be difficult to biodegrade and not biodegradable dissolved organic matter, and B/C ratio of intaking is raw less than 0.25
Object degradation is difficult.
Sewage treatment plant water-quality constituents is complicated, and main component has terephthalic acid (TPA) (TA), p-phthalic acid (PTA), thick
Terephthalic acid (TPA) (CTA), benzoic acid (BA), paraxylene, M-phthalic acid, p-methylbenzoic acid, 4- formaldehyde benzoic acid (4-
CBA), the substances such as methyl acetate, acetic acid and micro heavy cobalt, manganese, other changes such as benzene ring compound such as TA, p-methylbenzoic acid
Work waste water.Waste water is mainly hydrocarbon, and N, P nutriment are insufficient, and biochemical is poor, part Co, Mn metal ion and portion
Divide hard-degraded substance, has stronger murder by poisoning and inhibiting effect to microorganism, water inlet lacks nitrogen, phosphorus and other nutrients, C, N, P
Out of proportion, N, P nutriment are insufficient.The Designing Sewage Treatment Plant water inlet mg/L of TDS≤4000, salt content is higher, is also biochemistry
System high efficiency operation brings adverse effect.
Summary of the invention
The present invention is directed in existing wastewater treatment process, and the heavy metal ion and part hard-degraded substance contained is right
Microorganism has stronger murder by poisoning and inhibiting effect, and water inlet lacks nitrogen, phosphorus and other nutrients, and C, N, P are out of proportion, N,
The problems such as P nutriment is insufficient, a kind of method for proposing efficient process wastewater from chemical industry.
To achieve the goals above, The technical solution adopted by the invention is as follows:
A kind of method of efficient process wastewater from chemical industry, it is adjusting tank, hydrolysis acidification pool, anoxic pond including sewage treatment plant, aerobic
The techniques such as pond, secondary settling tank, which is characterized in that seed sludge is added in the technique, the specific method is as follows for the seed sludge:
S1: the enough bacterial populations of culture quantity or sludge are simultaneously tamed；
S2: the inoculation of activated-sludge into anoxic pond, sludge are divided into fresh activity sludge and time fresh activity sludge, continuously add
The secondary fresh activity sludge of 45-55 t/d amounts to 280-320t, or the continuous fresh activity sludge for adding 450-550 t/d is total to
2800-3200t is counted, and is optionally aided with and adds nutritional agents, AO system sludge vaccination target concentration: 1000-2000 mg/L；
S3: starting anoxic cell system blender, interruption open interior reflux pump, keep mud mixed liquid in anoxic pond and aerobic tank appropriate
It circulates；
S4: interruption opens aerobic tank system blower, controls DO, wherein the mg/L of DO≤0.48 in anoxic pond, in aerobic tank
DO carries out bored exposure in 1.8-2.2 mg/L, to aerobic tank, and filler is added portionwise in biochemistry pool embrane method section；
S5: in order to accelerate hydrolysis acidification pool culturing sludge progress, to inoculation of activated-sludge in tank is adjusted, sludge is divided into fresh activity
Sludge and time fresh activity sludge, the secondary fresh activity sludge for continuously adding 25-35 t/d amount to 180-220t, or continuous throwing
Add the fresh activity sludge of 250-350 t/d to amount to 1800-2200t, adjusts can system sludge seeding target MLSS concentration: 180-
320 mg/L, Eh control are in+50mv hereinafter, pH maintains 5.3-6.8；Period maintains hydrolysis acidification system MLSS concentration:
480-520 mg/L, until hydrolysis acidification pool sludge success biofilm, while optionally accelerating to hydrolysis acidification system extra-nutrition agent
Cultivate speed；In aeration time, opens and adjusts tank circulating pump, slowly inject raw water through hydrolysis acidification pool, reach designed elevation,
During biochemistry pool stops exposure, quiet heavy supernatant is emitted into secondary settling tank；
S6: it according to the water of raw water, keeps adjusting tank in certain water level, ensures and adjust surplus, continue bored exposure certain time, be
System starts about 95 m of continuous a small amount of water inlet3/ h controls AO system DO, wherein DO≤0.48 in anoxic pond hereinafter, continuous aeration
Mg/L, DO maintains system activity sludge concentration 1450-1550 mg/L in 1.8-2.2 mg/L in aerobic tank；Anoxic pond and aerobic
Not spoil disposal during the culturing sludge of pond, processing sewage not outlet, quiet heavy supernatant gravity flow, which enters follow-up system, debugs or flows back and adjust
Tank, viewing system foam situation add defoaming agent, inhibit bubble growth, and flow of inlet water is stepped up；
S7: situations such as according to water situation, enabling secondary settling tank, opening sludge external reflux pump for sludge reflux, and regard sludge concentration
Excess sludge is promoted to adjusting tank.
Further, nutritional agents ratio is C:N:P=110:5.2:1.1 in S2.
Further, the moisture content of secondary fresh activity sludge is 85%, and the moisture content of fresh activity sludge is 98.5%.
Further, the sewage treatment plant that the method process object is 2.5 ten thousand t/d.
Further, bored exposure mode is aeration 7-9 hours, stops 3-5 hours, periodic cycle.
Further, hydrolysis acidification pool mud valve spoil disposal, the concentrated pond collection mud sump row of spoil disposal water are continuously opened during processing
Empty valve enters full factory's waste water system, and recycling, which enters, adjusts tank.
The invention has the following advantages:
Microorganism is the main body of sewage purification, by adjust tank, hydrolysis acidification pool anaerobic sludge culture, select and tame as
The innovative point of invention, makes full use of engineering to have ready conditions, and it is slow, low efficiency generally existing in the industry to solve the starting of anaerobic biological system
The technical issues of, improve biochemical anaerobic technique, improve B/C ratio, the degradation efficiency of biochemical system also increases, and the present invention can
Wastewater from chemical industry is effectively handled, inoculation fresh activity sludge has better effect than secondary fresh activity sludge.
Detailed description of the invention
Fig. 1 is present invention process process total figure.
Fig. 2 is fresh activity sludge processes figure.
Fig. 3 is time fresh activity sludge processes figure.
Specific embodiment
Following further describes the present invention with reference to the drawings:
As shown in Figure 1-3, a kind of method of efficient process wastewater from chemical industry, adjusting tank, hydrolysis acidification pool including sewage treatment plant,
The techniques such as anoxic pond, aerobic tank, secondary settling tank, which is characterized in that seed sludge, the tool of the seed sludge are added in the technique
Body method is as follows:
S1: the enough bacterial populations of culture quantity or sludge are simultaneously tamed；
S2: the inoculation of activated-sludge into anoxic pond, sludge are divided into fresh activity sludge and time fresh activity sludge, continuously add
The secondary fresh activity sludge of 45-55 t/d amounts to 280-320t, or the continuous fresh activity sludge for adding 450-550 t/d is total to
2800-3200t is counted, and is optionally aided with and adds nutritional agents, AO system sludge vaccination target concentration: 1000-2000 mg/L；
S3: starting anoxic cell system blender, interruption open interior reflux pump, keep mud mixed liquid in anoxic pond and aerobic tank appropriate
It circulates；
S4: interruption opens aerobic tank system blower, controls DO, wherein the mg/L of DO≤0.48 in anoxic pond, in aerobic tank
DO carries out bored exposure in 1.8-2.2 mg/L, to aerobic tank, and filler is added portionwise in biochemistry pool embrane method section；
S5: in order to accelerate hydrolysis acidification pool culturing sludge progress, to inoculation of activated-sludge in tank is adjusted, sludge is divided into fresh activity
Sludge and time fresh activity sludge, the secondary fresh activity sludge for continuously adding 25-35 t/d amount to 180-220t, or continuous throwing
Add the fresh activity sludge of 250-350 t/d to amount to 1800-2200t, adjusts can system sludge seeding target MLSS concentration: 180-
320 mg/L, Eh control are in+50mv hereinafter, pH maintains 5.3-6.8；Period maintains hydrolysis acidification system MLSS concentration:
480-520 mg/L, until hydrolysis acidification pool sludge success biofilm, while optionally accelerating to hydrolysis acidification system extra-nutrition agent
Cultivate speed；In aeration time, opens and adjusts tank circulating pump, slowly inject raw water through hydrolysis acidification pool, reach designed elevation,
During biochemistry pool stops exposure, quiet heavy supernatant is emitted into secondary settling tank；
S6: it according to the water of raw water, keeps adjusting tank in certain water level, ensures and adjust surplus, continue bored exposure certain time, be
System starts about 95 m of continuous a small amount of water inlet3/ h controls AO system DO, wherein DO≤0.48 in anoxic pond hereinafter, continuous aeration
Mg/L, DO maintains system activity sludge concentration 1450-1550 mg/L in 1.8-2.2 mg/L in aerobic tank；Anoxic pond and aerobic
Not spoil disposal during the culturing sludge of pond, processing sewage not outlet, quiet heavy supernatant gravity flow, which enters follow-up system, debugs or flows back and adjust
Tank, viewing system foam situation add defoaming agent, inhibit bubble growth, and flow of inlet water is stepped up；
S7: situations such as according to water situation, enabling secondary settling tank, opening sludge external reflux pump for sludge reflux, and regard sludge concentration
Excess sludge is promoted to adjusting tank.
Further, nutritional agents ratio is C:N:P=110:5.2:1.1 in S2.
Further, the moisture content of secondary fresh activity sludge is 85%, and the moisture content of fresh activity sludge is 98.5%.
Further, the sewage treatment plant that the method process object is 2.5 ten thousand t/d.
Further, bored exposure mode is aeration 7-9 hours, stops 3-5 hours, periodic cycle.
Further, hydrolysis acidification pool mud valve spoil disposal, the concentrated pond collection mud sump row of spoil disposal water are continuously opened during processing
Empty valve enters full factory's waste water system, and recycling, which enters, adjusts tank.
Fresh activity sludge embodiment:
Embodiment 1: as shown in Fig. 2, being directed to the sewage treatment plant of 2.5 ten thousand t/d, fresh activity sludge is added, which can lead to
Adjacent upstream wastewater and sewage treating stations are crossed, are come by pipeline transportation, moisture content is 98.5%.
S1: the enough bacterial populations of culture quantity or sludge are simultaneously tamed；
S2: the inoculation of activated-sludge into anoxic pond, the fresh activity sludge for continuously adding 550t/d amount to 3200t, and optionally
It is aided with and adds nutritional agents, AO system sludge vaccination target concentration: 2000mg/L；
S3: starting anoxic cell system blender, interruption open interior reflux pump, keep mud mixed liquid in anoxic pond and aerobic tank appropriate
It circulates；
S4: interruption opens aerobic tank system blower, controls DO, wherein the mg/L of DO≤0.48 in anoxic pond, in aerobic tank
DO carries out bored exposure in 2.2mg/L, to aerobic tank, and filler is added portionwise in biochemistry pool embrane method section；
S5: in order to accelerate hydrolysis acidification pool culturing sludge progress, to inoculation of activated-sludge in tank is adjusted, 350 t/d are continuously added
Fresh activity sludge amount to 2200t, adjust can system sludge seeding target MLSS concentration: 320 mg/L, Eh control+
50mv is hereinafter, pH maintains 6.8；Period maintains hydrolysis acidification system MLSS concentration: 520 mg/L, until hydrolysis acidification pool sludge
Success biofilm, while optionally to hydrolysis acidification system extra-nutrition agent, accelerate to cultivate speed；In aeration time, opens and adjust
Tank circulating pump is saved, raw water is slowly injected through hydrolysis acidification pool, reaches designed elevation, it, will be quiet heavy upper during biochemistry pool stops exposure
Clear liquid discharging is to secondary settling tank；
S6: it according to the water of raw water, keeps adjusting tank in certain water level, ensures and adjust surplus, continue bored exposure certain time, be
System starts about 95 m of continuous a small amount of water inlet3/ h controls AO system DO, wherein DO≤0.48 in anoxic pond hereinafter, continuous aeration
Mg/L, DO maintains 1550 mg/L of system activity sludge concentration in 2.2 mg/L in aerobic tank；Anoxic pond and the training of aerobic tank sludge
Not spoil disposal of feeding period, processing sewage not outlet, quiet heavy supernatant gravity flow, which enters follow-up system, debugs or flows back and adjust tank, viewing system
Foam situation adds defoaming agent, inhibits bubble growth, and flow of inlet water is stepped up；
S7: situations such as according to water situation, enabling secondary settling tank, opening sludge external reflux pump for sludge reflux, and regard sludge concentration
Excess sludge is promoted to adjusting tank.
Embodiment 2: as shown in Fig. 2, being directed to the sewage treatment plant of 2.5 ten thousand t/d, fresh activity sludge is added, which can
To be come by pipeline transportation, moisture content is 98.5% by adjacent upstream wastewater and sewage treating stations.
S1: the enough bacterial populations of culture quantity or sludge are simultaneously tamed；
S2: the inoculation of activated-sludge into anoxic pond, the fresh activity sludge for continuously adding 450t/d amount to 2800t, and optionally
It is aided with and adds nutritional agents, AO system sludge vaccination target concentration: 1000mg/L；
S3: starting anoxic cell system blender, interruption open interior reflux pump, keep mud mixed liquid in anoxic pond and aerobic tank appropriate
It circulates；
S4: interruption opens aerobic tank system blower, controls DO, wherein the mg/L of DO≤0.48 in anoxic pond, in aerobic tank
DO carries out bored exposure in 1.8 mg/L, to aerobic tank, and filler is added portionwise in biochemistry pool embrane method section；
S5: in order to accelerate hydrolysis acidification pool culturing sludge progress, to inoculation of activated-sludge in tank is adjusted, 250 t/d are continuously added
Fresh activity sludge amount to 1800t, adjust can system sludge seeding target MLSS concentration: 180 mg/L, Eh control+
50mv is hereinafter, pH maintains 5.3；Period maintains hydrolysis acidification system MLSS concentration: 480 mg/L, until hydrolysis acidification pool sludge
Success biofilm, while optionally to hydrolysis acidification system extra-nutrition agent, accelerate to cultivate speed；In aeration time, opens and adjust
Tank circulating pump is saved, raw water is slowly injected through hydrolysis acidification pool, reaches designed elevation, it, will be quiet heavy upper during biochemistry pool stops exposure
Clear liquid discharging is to secondary settling tank；
S6: it according to the water of raw water, keeps adjusting tank in certain water level, ensures and adjust surplus, continue bored exposure certain time, be
System starts about 95 m of continuous a small amount of water inlet3/ h controls AO system DO, wherein DO≤0.48 in anoxic pond hereinafter, continuous aeration
Mg/L, DO maintains 1450 mg/L of system activity sludge concentration in 1.8 mg/L in aerobic tank；Anoxic pond and the training of aerobic tank sludge
Not spoil disposal of feeding period, processing sewage not outlet, quiet heavy supernatant gravity flow, which enters follow-up system, debugs or flows back and adjust tank, viewing system
Foam situation adds defoaming agent, inhibits bubble growth, and flow of inlet water is stepped up；
S7: situations such as according to water situation, enabling secondary settling tank, opening sludge external reflux pump for sludge reflux, and regard sludge concentration
Excess sludge is promoted to adjusting tank.
Secondary fresh activity sludge embodiment:
Embodiment 3: as shown in figure 3, being directed to the sewage treatment plant of 2.5 ten thousand t/d, time fresh activity sludge is added, which passes through
Vehicle comes from transport elsewhere, and the moisture content of secondary fresh activity sludge is 85%.
S1: the enough bacterial populations of culture quantity or sludge are simultaneously tamed；
S2: the inoculation of activated-sludge into anoxic pond, the secondary fresh activity sludge for continuously adding 45 t/d amount to 280t, and optionally
It is aided with and adds nutritional agents, AO system sludge vaccination target concentration: 1000 mg/L；
S3: starting anoxic cell system blender, interruption open interior reflux pump, keep mud mixed liquid in anoxic pond and aerobic tank appropriate
It circulates；
S4: interruption opens aerobic tank system blower, controls DO, wherein the mg/L of DO≤0.48 in anoxic pond, in aerobic tank
DO carries out bored exposure in 1.8 mg/L, to aerobic tank, and filler is added portionwise in biochemistry pool embrane method section；
S5: in order to accelerate hydrolysis acidification pool culturing sludge progress, to inoculation of activated-sludge in tank is adjusted, continuously add 25 t/d's
Secondary fresh activity sludge amounts to 180t, and adjust can system sludge seeding target MLSS concentration: 180 mg/L, Eh are controlled in+50mv
Hereinafter, pH maintains 5.3；Period maintains hydrolysis acidification system MLSS concentration: 480 mg/L, until the success of hydrolysis acidification pool sludge
Biofilm, while optionally to hydrolysis acidification system extra-nutrition agent, accelerate to cultivate speed；In aeration time, opens and adjust tank
Circulating pump slowly injects raw water through hydrolysis acidification pool, reaches designed elevation, during biochemistry pool stops exposure, by quiet heavy supernatant
It is emitted into secondary settling tank；
S6: it according to the water of raw water, keeps adjusting tank in certain water level, ensures and adjust surplus, continue bored exposure certain time, be
System starts about 95 m of continuous a small amount of water inlet3/ h controls AO system DO, wherein DO≤0.48 in anoxic pond hereinafter, continuous aeration
Mg/L, DO maintains 1450 mg/L of system activity sludge concentration in 1.8mg/L in aerobic tank；Anoxic pond and aerobic tank culturing sludge
Period not spoil disposal, processing sewage not outlet, quiet heavy supernatant gravity flow, which enters follow-up system, debugs or flows back and adjust tank, viewing system bubble
Foam situation adds defoaming agent, inhibits bubble growth, and flow of inlet water is stepped up；
S7: situations such as according to water situation, enabling secondary settling tank, opening sludge external reflux pump for sludge reflux, and regard sludge concentration
Excess sludge is promoted to adjusting tank.
Embodiment 4: as shown in figure 3, being directed to the sewage treatment plant of 2.5 ten thousand t/d, time fresh activity sludge, the sludge are added
By vehicle from transport elsewhere come the moisture content of secondary fresh activity sludge is 85%.
S1: the enough bacterial populations of culture quantity or sludge are simultaneously tamed；
S2: the inoculation of activated-sludge into anoxic pond, the secondary fresh activity sludge for continuously adding 55 t/d amount to 320t, and optionally
It is aided with and adds nutritional agents, AO system sludge vaccination target concentration: 2000 mg/L；
S3: starting anoxic cell system blender, interruption open interior reflux pump, keep mud mixed liquid in anoxic pond and aerobic tank appropriate
It circulates；
S4: interruption opens aerobic tank system blower, controls DO, wherein the mg/L of DO≤0.48 in anoxic pond, in aerobic tank
DO carries out bored exposure in 2.2 mg/L, to aerobic tank, and filler is added portionwise in biochemistry pool embrane method section；
S5: in order to accelerate hydrolysis acidification pool culturing sludge progress, to inoculation of activated-sludge in tank is adjusted, continuously add 35 t/d's
Secondary fresh activity sludge amounts to 220t, and adjust can system sludge seeding target MLSS concentration: 320 mg/L, Eh are controlled in+50mv
Hereinafter, pH maintains 6.8；Period maintains hydrolysis acidification system MLSS concentration: 520 mg/L, until the success of hydrolysis acidification pool sludge
Biofilm, while optionally to hydrolysis acidification system extra-nutrition agent, accelerate to cultivate speed；In aeration time, opens and adjust tank
Circulating pump slowly injects raw water through hydrolysis acidification pool, reaches designed elevation, during biochemistry pool stops exposure, by quiet heavy supernatant
It is emitted into secondary settling tank；
S6: it according to the water of raw water, keeps adjusting tank in certain water level, ensures and adjust surplus, continue bored exposure certain time, be
System starts about 95 m of continuous a small amount of water inlet3/ h controls AO system DO, wherein DO≤0.48 in anoxic pond hereinafter, continuous aeration
Mg/L, DO maintains 1550 mg/L of system activity sludge concentration in 2.2 mg/L in aerobic tank；Anoxic pond and the training of aerobic tank sludge
Not spoil disposal of feeding period, processing sewage not outlet, quiet heavy supernatant gravity flow, which enters follow-up system, debugs or flows back and adjust tank, viewing system
Foam situation adds defoaming agent, inhibits bubble growth, and flow of inlet water is stepped up；
S7: situations such as according to water situation, enabling secondary settling tank, opening sludge external reflux pump for sludge reflux, and regard sludge concentration
Excess sludge is promoted to adjusting tank.
Different sludge are added respectively by above-mentioned, it can be found that fresh activity sludge has better treatment effect.
The above description is merely a specific embodiment, but the protection scope invented is not limited thereto, any ripe
Know those skilled in the art in the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of, should all cover
Within the protection scope of invention.
Claims (6)
- It is adjusting tank, hydrolysis acidification pool, anoxic pond including sewage treatment plant, good 1. a kind of method of efficient process wastewater from chemical industry The techniques such as oxygen pond, secondary settling tank, which is characterized in that seed sludge is added in the technique, the specific method of the seed sludge is such as Under:S1: the enough bacterial populations of culture quantity or activated sludge are simultaneously tamed；S2: the inoculation of activated-sludge into anoxic pond, sludge are divided into fresh activity sludge and time fresh activity sludge, continuously add The secondary fresh activity sludge of 45-55 t/d amounts to 280-320t, or the continuous fresh activity sludge for adding 450-550 t/d is total to 2800-3200t is counted, and is optionally aided with and adds nutritional agents, AO system sludge vaccination target concentration: 1000-2000 mg/L；S3: starting anoxic cell system blender, interruption open interior reflux pump, keep mud mixed liquid in anoxic pond and aerobic tank appropriate It circulates；S4: interruption opens aerobic tank system blower, controls DO, wherein the mg/L of DO≤0.48 in anoxic pond, in aerobic tank DO carries out bored exposure in 1.8-2.2 mg/L, to aerobic tank, and filler is added portionwise in biochemistry pool embrane method section；S5: in order to accelerate hydrolysis acidification pool culturing sludge progress, to inoculation of activated-sludge in tank is adjusted, sludge is divided into fresh activity Sludge and time fresh activity sludge, the secondary fresh activity sludge for continuously adding 25-35 t/d amount to 180-220t, or continuous throwing Add the fresh activity sludge of 250-350 t/d to amount to 1800-2200t, adjusts can system sludge seeding target MLSS concentration: 180- 320 mg/L, Eh control are in+50mv hereinafter, pH maintains 5.3-6.8；Maintain hydrolysis acidification system MLSS concentration: 480-520 Mg/L, until hydrolysis acidification pool sludge success biofilm, while optionally to hydrolysis acidification system extra-nutrition agent, accelerate to cultivate speed Degree；In aeration time, opens and adjust tank circulating pump, slowly inject raw water through hydrolysis acidification pool, reach designed elevation, in biochemistry During exposure is stopped in pond, quiet heavy supernatant is emitted into secondary settling tank；S6: it according to the water of raw water, keeps adjusting tank in certain water level, ensures and adjust surplus, continue bored exposure certain time, be System starts about 95 m of continuous a small amount of water inlet3/ h controls AO system DO, wherein DO≤0.48 in anoxic pond hereinafter, continuous aeration Mg/L, DO maintains system activity sludge concentration 1450-1550 mg/L in 1.8-2.2 mg/L in aerobic tank；Anoxic pond and aerobic Not spoil disposal during the culturing sludge of pond, processing sewage not outlet, quiet heavy supernatant gravity flow enters follow-up system or reflux adjusts tank, depending on System foam situation adds defoaming agent, inhibits bubble growth, and flow of inlet water is stepped up；S7: situations such as according to water situation, enabling secondary settling tank, opening sludge external reflux pump for sludge reflux, and regard sludge concentration Excess sludge is promoted to adjusting tank.
- 2. a kind of method of efficient process wastewater from chemical industry according to claim 1, it is characterised in that: nutritional agents ratio in S2 For C:N:P=110:5.2:1.1.
- 3. a kind of method of efficient process wastewater from chemical industry according to claim 1, it is characterised in that: secondary fresh activity sludge Moisture content be 85%, the moisture content of fresh activity sludge is 98.5%.
- 4. a kind of method of efficient process wastewater from chemical industry according to claim 1, it is characterised in that: the method processing pair As the sewage treatment plant for 2.5 ten thousand t/d.
- 5. a kind of method of efficient process wastewater from chemical industry according to claim 1, it is characterised in that: bored exposure mode is aeration 7-9 hours, stop 3-5 hours, periodic cycle.
- 6. a kind of method of efficient process wastewater from chemical industry according to claim 1, it is characterised in that: continuously opened during processing Hydrolysis acidification pool mud valve spoil disposal is opened, the concentrated pond collection mud sump exhaust-valve of spoil disposal water enters full factory's waste water system, and recycling, which enters, adjusts Save tank.
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| CN112028243A (en) * | 2020-08-12 | 2020-12-04 | 深圳市广汇源环境水务有限公司 | Quick starting method of biological membrane system |
| CN114956326A (en) * | 2021-02-22 | 2022-08-30 | 青岛冠中生态股份有限公司 | Rapid debugging and running method suitable for small and medium-sized sewage treatment systems |
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| CN112028243A (en) * | 2020-08-12 | 2020-12-04 | 深圳市广汇源环境水务有限公司 | Quick starting method of biological membrane system |
| CN112028243B (en) * | 2020-08-12 | 2023-02-03 | 深圳市广汇源环境水务有限公司 | Quick starting method of biological membrane system |
| CN114956326A (en) * | 2021-02-22 | 2022-08-30 | 青岛冠中生态股份有限公司 | Rapid debugging and running method suitable for small and medium-sized sewage treatment systems |
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