CN1544363A - Saponin waste water handling method - Google Patents
Saponin waste water handling method Download PDFInfo
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- CN1544363A CN1544363A CNA2003101113634A CN200310111363A CN1544363A CN 1544363 A CN1544363 A CN 1544363A CN A2003101113634 A CNA2003101113634 A CN A2003101113634A CN 200310111363 A CN200310111363 A CN 200310111363A CN 1544363 A CN1544363 A CN 1544363A
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- waste water
- oxygen demand
- chemical oxygen
- cod clearance
- detention time
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Abstract
The invention discloses a process for treating saponin waste water comprising the steps of, adjustment stabilization, physicochemical pre-processing, preheating, high load anaerobic procedure, hydrolyzing, low-load anaerobic, aerobic and advanced treatment. The process according to the invention realizes the combination of physicochemical pretreatment.
Description
Technical field
The present invention relates to a kind of method of wastewater treatment.
Background technology
Saponin is the raw material of the higher hormone medicine of a kind of pharmaceutical use, but saponin waste water has characteristics such as colourity is big, Pollutant levels are high, acidity is big, temperature height, intractability is big, to water body and soil cause very big pollution on every side.Many saponin manufacturing enterprise is positioned at the waterhead area of divert water from the south to the north project and the tributary in Han River.For divert water from the south to the north project with to the relevant requirements of Han River water pollution control, these enterprises must carry out waste water treatment, reach the requirement of national grade one discharge standard according to country, otherwise the condition that just faces closure.
At present, the saponin waste water improvement method of having reported is roughly: adjusting-neutralization-UASB (Upflow Anaerobic Sludge Blanket, upflow anaerobic sludge blanket reactor)-aerobic-B-grade sewage treatment plant.
The shortcoming of above-mentioned prior art is:
(1) pre-treatment can only be played the effect that improves the pH value, its function singleness.
(2) one-level anaerobic chemical oxygen demand COD (Chemical Oxygen Demand) clearance is low, makes the aerobic treatment unit bear too high COD load.
(3) because phenomenon such as the COD concentration that enters the one-level aerobic treatment, causes that aerobic treatment unit COD clearance is low much larger than the aerobic load that can bear, sludge bulking, foam are many.
(4) do not have advanced treatment, the clearance sum of simple biochemical processing process COD still is difficult to reach the requirement of first discharge standard.
(5) energy consumption, working cost height.
Summary of the invention
The objective of the invention is to overcome above-mentioned the deficiencies in the prior art part, a kind of saponin waste water treatment process is provided, this method organic removal rate height, reduced investment, energy consumption is low, working cost is low, saponin waste water can reach first discharge standard.
For achieving the above object, the technical solution used in the present invention is that a kind of saponin waste water treatment process comprises:
(1) regulate stable: regulating pondage, balanced water quality, waste water hydraulic detention time 8～10 hours, adding lime, to make the pH of waste water be 4～5, makes sulfate radical [SO
4 2-]＜500mg/L, chemical oxygen demand COD clearance 10%～12%;
(2) physics and chemistry pre-treatment: the electrochemical reaction in utilizing in the electrolysis reactor, decompose the partial organic substances of removing in the aqueous solution, and the coagulation and the biodegradability of raising waste water, waste water hydraulic detention time 0.5～1 hour, the BOD/COD of saponin waste water is 0.4～0.6, physics and chemistry pre-treatment water outlet pH is promoted to 6～7, chemical oxygen demand COD clearance 30%～35%;
(3) preheating: wastewater temperature is transferred to 33 ℃～40 ℃;
(4) high-load anaerobic: waste water hydraulic detention time 40～48 hours, volumetric loading 5～10kgCOD/ (m
3.d), the chemical oxygen demand COD clearance 60%～65%;
(5) hydrolysis: in hydrolytic tank, the larger molecular organics in the waste water is acidication under the effect of anaerobism, the oxygen bacterium of holding concurrently, waste water hydraulic detention time 8～10 hours, chemical oxygen demand COD clearance 10%～15%;
(6) underload anaerobism: waste water hydraulic detention time 10～12 hours, volumetric loading 2～5kgCOD/ (m
3.d), the chemical oxygen demand COD clearance 60%～65%;
(7) aerobic: waste water hydraulic detention time 16～24 hours, volumetric loading 1～2kgCOD/ (m
3.d), the chemical oxygen demand COD clearance 80%～85%;
(8) advanced treatment: chemical oxygen demand COD clearance 60%～65% guarantees that the water outlet after the aerobic treatment reaches first discharge standard.
Pine in advance in (3) step, the pH value of waste water can be transferred to greater than 7, smaller or equal to 9.
The invention has the advantages that:
(1) partial organic substances is removed in the physics and chemistry pre-treatment, improves pH, improves the BOD/COD of waste water, provides superior condition to subsequent disposal.
(2) adopt two-stage anaerobic, guarantee that saponin waste water enters aerobic with low COD.
(3) increase hydrolysis between high-load anaerobic and the underload anaerobism, the water outlet that can alleviate high-load anaerobic is impacted the underload anaerobic, and it has 10%～15%COD clearance simultaneously.
(4) the underload anaerobism has higher removal efficient to the COD of lower concentration, and energy consumption is little.
(5) advanced treatment further improves effluent quality, is that the saponin waste water more than the 20000mg/L reaches first discharge standard at last with COD.
(6) combination technique of physico-chemical pretreatment and biochemical treatment is a kind of environment-friendly and energy-efficient Technology.
Description of drawings
Accompanying drawing is the technological process device figure of an embodiment of the present invention.
Embodiment
Technological process device of the present invention can comprise regulates stabilization pond 1, interior electrolysis reactor 2, preheating pond 3, high-load anaerobic reactor 4, hydrolytic tank 5, underload anaerobic reation pool 6, aerobic reaction pond 7, artificial swamp 8.
In conjunction with the accompanying drawings the present invention is described in further detail.
A kind of saponin waste water treatment process comprises:
(1) adjusting is stable: in regulating stabilization pond 1, and regulating pondage, balanced water quality guarantees the continuous operation of follow-up sewage disposal flow process, waste water hydraulic detention time 8.5 hours adds lime and regulates pH, makes the pH of waste water bring up to 5 by 1.2, removes part of sulfuric acid root SO
4 2-, and separate out precipitation, make [SO
4 2-]＜500mg/L, chemical oxygen demand COD clearance 12%.
(2) physics and chemistry pre-treatment: in interior electrolysis reactor 2, the interior electrolytic reaction post that utilizes iron filings and gac to constitute is handled saponin waste water, decomposes the partial organic substances of removing in the aqueous solution, and improves the coagulation and the biodegradability of waste water.Waste water hydraulic detention time 1 hour, the BOD of saponin waste water (Bio-chemical Oxygen Demand, biochemical oxygen demand (BOD))/COD brings up to 0.5 by 0.3, and water outlet pH is 7, COD clearance 35%.
(3) preheating: in preheating pond 3, can feeding steam, to make water temperature be 38 ℃.
In this pond or this pond preceding pipeline, also can add caustic soda or soda ash, or add caustic soda and soda ash simultaneously, pH value is transferred to 8.
(4) high-load anaerobic: the sewage through preheating enters high-load anaerobic reactor 4, can adopt a UASB anaerobic reactor, also can adopt two UASB anaerobic reactor serial or parallel connections.The UASB anaerobic reactor has following outstanding characteristics: the high reactivity mud that exists with Granular forms of reactor middle and high concentration; Have collection mud, the gentle triphase separator that is located away from one of water in the reactor; Need not to install any whipping appts in the reactor, the stirring of reactor is to realize by the rising transporting action of aerogenesis.In the UASB anaerobic reactor, waste water hydraulic detention time 40 hours, volumetric loading 8kgCOD/ (m
3.d), the COD clearance 65%.
(5) hydrolysis: in hydrolytic tank 5, larger molecular organics in the waste water is acidication under the effect of anaerobism, the oxygen bacterium of holding concurrently, change the small molecules dissolved organic matter of readily biodegradable into, further improve the biodegradability of waste water, the partial organic substances of having degraded simultaneously matter.Waste water hydraulic detention time 9 hours, COD clearance 15%.
(6) underload anaerobism: underload anaerobic reation pool 6 can adopt the mass transfer by shock wave anaerobic reation pool, establishes latent inhale two spray mass transfer by shock wave devices and the highly dense particulate advantage of interplantation anaerobion in the mass transfer by shock wave anaerobic reation pool.Strengthen and quicken the mass transfer of substrate by the low-pressure fluid shock wave, the mass transfer by shock wave device also has the shearing function simultaneously, make that the microorganism cenobium cuts into countless cenobiums than small particle size in the pond, so that expose inner microorganism as much as possible, improve the effective microbe amount of participating in reaction greatly, thereby further improve detergent power, increase substantially the speed of reaction of anaerobion, shorten the reaction times sewage.Establish the settling region in the reaction tank.Waste water hydraulic detention time 12 hours, volumetric loading 4kgCOD/ (m
3.d), the COD clearance 65%.
(7) aerobic: anaerobic reaction sewage enters aerobic reaction pond 7, can adopt the jet-flow aeration oxygenation in the aerobic reaction pond 7, and aerobic flora is bred in a large number, keep higher activated sludge concentration, sewage contacts with active sludge, and under the effect of aerobic microbiological, sewage is further purified.Waste water hydraulic detention time 20 hours, volumetric loading 1.5kgCOD/ (m
3.d), the COD clearance 85%.
(8) advanced treatment: can adopt artificial swamp 8, it has functions such as absorption, biological degradation, filtration concurrently, and COD clearance 65% makes the water outlet after the aerobic treatment reach first discharge standard.
Claims (2)
1. a saponin waste water treatment process is characterized in that: comprise
(1) regulate stable: regulating pondage, balanced water quality, waste water hydraulic detention time 8～10 hours, adding lime, to make the pH of waste water be 4～5, makes sulfate radical [SO
4 2-]＜500mg/L, chemical oxygen demand COD clearance 10%～12%;
(2) physics and chemistry pre-treatment: the electrochemical reaction in utilizing in the electrolysis reactor, decompose the partial organic substances of removing in the aqueous solution, and the coagulation and the biodegradability of raising waste water, waste water hydraulic detention time 0.5～1 hour, the BOD/COD of saponin waste water is 0.4～0.6, physics and chemistry pre-treatment water outlet pH is promoted to 6～7, chemical oxygen demand COD clearance 30%～35%;
(3) preheating: wastewater temperature is transferred to 33 ℃～40 ℃;
(4) high-load anaerobic: waste water hydraulic detention time 40～48 hours, volumetric loading 5～10kgCOD/ (m
3D), the chemical oxygen demand COD clearance 60%～65%;
(5) hydrolysis: in hydrolytic tank, the larger molecular organics in the waste water is acidication under the effect of anaerobism, the oxygen bacterium of holding concurrently, waste water hydraulic detention time 8～10 hours, chemical oxygen demand COD clearance 10%～15%;
(6) underload anaerobism: waste water hydraulic detention time 10～12 hours, volumetric loading 2～5kgCOD/ (m
3D), the chemical oxygen demand COD clearance 60%～65%;
(7) aerobic: waste water hydraulic detention time 16～24 hours, volumetric loading 1～2kgCOD/ (m
3D), the chemical oxygen demand COD clearance 80%～85%;
(8) advanced treatment: chemical oxygen demand COD clearance 60%～65% guarantees that the water outlet after the aerobic treatment reaches first discharge standard.
2. saponin waste water treatment process according to claim 1 is characterized in that: pine in advance in (3) step, with the pH value of waste water transfer to greater than 7, smaller or equal to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200310111363 CN1225417C (en) | 2003-11-10 | 2003-11-10 | Saponin waste water handling method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200310111363 CN1225417C (en) | 2003-11-10 | 2003-11-10 | Saponin waste water handling method |
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| Publication Number | Publication Date |
|---|---|
| CN1544363A true CN1544363A (en) | 2004-11-10 |
| CN1225417C CN1225417C (en) | 2005-11-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200310111363 Expired - Fee Related CN1225417C (en) | 2003-11-10 | 2003-11-10 | Saponin waste water handling method |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100349811C (en) * | 2005-11-17 | 2007-11-21 | 中国地质大学（武汉） | Process for treating yellow ginger saponin waste water by hydrochloric acid method |
| CN100360440C (en) * | 2005-11-24 | 2008-01-09 | 郧西县怡江生物化工有限公司 | Process for treating saponin sewage of yellow ginger prosessing |
| CN101830602A (en) * | 2010-05-18 | 2010-09-15 | 沈阳石蜡化工有限公司 | Biochemical treatment method of acrylic ester industrial wastewater |
| CN102126813A (en) * | 2011-01-25 | 2011-07-20 | 山东美泉环保科技有限公司 | System and process for treating oxytetracycline waste water by anaerobic bio-treatment method |
| CN102336502A (en) * | 2011-08-26 | 2012-02-01 | 无锡通源环保技术工程有限公司 | Combination type treatment method for pharmaceutical waste water |
| CN101928095B (en) * | 2009-10-30 | 2012-03-28 | 江西省科学院能源研究所 | Distributed domestic sewage treatment method |
| CN102659278A (en) * | 2012-02-15 | 2012-09-12 | 陕西省环境科学研究院 | Industrial wastewater treatment method during diosgenin production process |
| CN101525206B (en) * | 2009-03-23 | 2012-11-07 | 桐乡市永宏塑料制品有限公司 | Ecologically harmless treatment system of excrement and domestic sewage |
| CN105084638A (en) * | 2014-05-09 | 2015-11-25 | 白河县永宏化工有限责任公司 | Method for producing biogas by using wastewater obtained from alcohol production which uses dioscorea zingiberensis to hydrolyse wastewater |
| CN105693026A (en) * | 2016-03-13 | 2016-06-22 | 武汉森泰环保股份有限公司 | Method for treating wastewater produced during extraction of saponin from dioscorea zingiberensis |
| CN105923857A (en) * | 2016-06-22 | 2016-09-07 | 陕西科技大学 | Pretreatment method of sisal hemp/yam diosgenin wastewater |
-
2003
- 2003-11-10 CN CN 200310111363 patent/CN1225417C/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100349811C (en) * | 2005-11-17 | 2007-11-21 | 中国地质大学（武汉） | Process for treating yellow ginger saponin waste water by hydrochloric acid method |
| CN100360440C (en) * | 2005-11-24 | 2008-01-09 | 郧西县怡江生物化工有限公司 | Process for treating saponin sewage of yellow ginger prosessing |
| CN101525206B (en) * | 2009-03-23 | 2012-11-07 | 桐乡市永宏塑料制品有限公司 | Ecologically harmless treatment system of excrement and domestic sewage |
| CN101928095B (en) * | 2009-10-30 | 2012-03-28 | 江西省科学院能源研究所 | Distributed domestic sewage treatment method |
| CN101830602A (en) * | 2010-05-18 | 2010-09-15 | 沈阳石蜡化工有限公司 | Biochemical treatment method of acrylic ester industrial wastewater |
| CN102126813A (en) * | 2011-01-25 | 2011-07-20 | 山东美泉环保科技有限公司 | System and process for treating oxytetracycline waste water by anaerobic bio-treatment method |
| CN102126813B (en) * | 2011-01-25 | 2013-02-06 | 山东美泉环保科技有限公司 | System and process for treating oxytetracycline waste water by anaerobic bio-treatment method |
| CN102336502A (en) * | 2011-08-26 | 2012-02-01 | 无锡通源环保技术工程有限公司 | Combination type treatment method for pharmaceutical waste water |
| CN102659278A (en) * | 2012-02-15 | 2012-09-12 | 陕西省环境科学研究院 | Industrial wastewater treatment method during diosgenin production process |
| CN105084638A (en) * | 2014-05-09 | 2015-11-25 | 白河县永宏化工有限责任公司 | Method for producing biogas by using wastewater obtained from alcohol production which uses dioscorea zingiberensis to hydrolyse wastewater |
| CN105693026A (en) * | 2016-03-13 | 2016-06-22 | 武汉森泰环保股份有限公司 | Method for treating wastewater produced during extraction of saponin from dioscorea zingiberensis |
| CN105923857A (en) * | 2016-06-22 | 2016-09-07 | 陕西科技大学 | Pretreatment method of sisal hemp/yam diosgenin wastewater |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1225417C (en) | 2005-11-02 |
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