CN103708596A - Method for enhanced removal and recovery of nitrogen and phosphorus in traditional white spirit waste water treatment process - Google Patents
Method for enhanced removal and recovery of nitrogen and phosphorus in traditional white spirit waste water treatment process Download PDFInfo
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Abstract
The invention belongs to the technical fields of energy conservation and emission reduction, waste recycling and resourceful treatment, and specifically discloses a method for enhanced removal and recovery of nitrogen and phosphorus in a traditional white spirit waste water treatment process. The process principle of the method is as follows: a reaction tank and a sedimentation tank are orderly arranged after anaerobic effluent and before an aerobic process in the traditional white spirit waste water treatment process; magnesium hydroxide or magnesium oxide is fed to generate a magnesium ammonium phosphate precipitate, so that enhanced removal and recycling of nitrogen and phosphorus are realized, and the nitrogen and phosphorus loads of waste water entering an aerobic pool are reduced. The method for enhanced removal and recovery of nitrogen and phosphorus from the traditional white spirit waste water treatment process provided by the invention is low in cost, high in performance and high in additional value, and also low in treatment cost, reliable in treatment effect and easy to popularize; the method has wide market prospect, and considerable economic benefit and social benefit.
Description
Technical field
The present invention relates to energy-saving and emission-reduction, waste reclaimation and resource treatment technique field, be specifically related in a kind of white wine waste water conventional process the method that nitrogen phosphorus was removed and reclaimed in strengthening.
Background technology
The white wine raw material of China is main mainly with wheat, corn, Chinese sorghum greatly.Production process mainly comprises processing, fermentation, distillation and four steps of packing of raw material, and average every production 1t alcohol produces waste water 8-15t.The waste water that still-process produces is the main source that spirit brewing factory pollutes, and its water quality general characteristic is organism and the inorganics of high dissolved solids load (wherein 50% is reducing sugar), high ash content, high-temperature, low pH and high-content.Distillery waste is difficult to process, in waste water owing to containing brown polymkeric substance that amino, carbonyl reaction produces, melanoidin etc.These compound with oxidation resistance performances are strong, and its toxicity can hinder the microorganism normal growth in typical waste water treatment process and cannot be biodegradable direct discharge to enter in environment.Except melanoidin compounds, the difficult degradation compound existing in waste water also has caramel, various products of sugar decomposition, anthocyanidin, tannic acid and different xenobiontics compounds.Waste water also contains niff, and what cause these smells is skatole, indoles and the sulfur compound that still-process is not decomposed completely.It is very big that distillery waste directly drains in environment contaminative and hazardness.
If the nutritive substance such as nitrogen, phosphorus enters the unhurried current water bodys such as lake, river mouth, bay in a large number, can cause that algae and other planktonic organisms breed rapidly, Dissolved Oxygen in Water amount declines, water quality deterioration, fish and other biological mortality.When eutrophication phenomenon appears in water body, planktonic algae amount reproduction, forms wawter bloom (lake), red tide (ocean).Therefore, must effectively remove nitrogen and phosphorus pollutants.In regions such as China's ring TAI HU AREA, Dianchi Lake, Yunnan Provinces, set up the nitrogen phosphorus emission standard stricter compared with national standard.
Traditional white wine sewage treatment technology process is:
2 → filtration → the water outlet of white wine waste water → grid → coagulation → preliminary sedimentation tank → dosing reaction → air flotation pool 1 → anaerobism (UASB) → aerobic → second pond → dosing reaction → air flotation pool
Generally, white wine waste water primary pollutant concentration is total nitrogen 150-220mg/L, total phosphorus 90-130mg/L.Because traditional white wine waste water treatment process is lower to removal efficiency of nitrogen and phosphorus, therefore need strengthen removal to nitrogen phosphorus.
In the treating processes of urban domestic wastewater, general available A
2/ O technique synchronous denitrification dephosphorizing.But because white wine waste water COD content is higher, generally reach 7000～10000mg/L, wastewater treatment adopts the anaerobic technique of UASB more, if according to traditional A
2/ O technique synchronous denitrification dephosphorizing, be by second pond sludge reflux to anaerobic pond, and this affects the removal to COD by the granule sludge activity of havoc UASB.
Therefore, how to remove efficiently nitrogen, phosphorus in white wine waste water, and the technical study of carrying out resource utilization recovery is one of focus of studying of domestic and international researcher, engineering technical personnel.
Summary of the invention
For the deficiencies in the prior art, the object of the present invention is to provide in a kind of brand-new white wine waste water conventional process strengthening to remove and reclaim the method for nitrogen phosphorus.Its technological principle is to set gradually a reaction tank and a settling tank after the anaerobic pond water outlet of white wine waste water conventional processes equipment, before Aerobic Pond water inlet, add by a certain percentage magnesium oxide or magnesium hydroxide, generate magnesium ammonium phosphate sediment, realization is removed the strengthening of nitrogen phosphorus, reduce into the nitrogen and phosphorus load of the waste water of Aerobic Pond, and realized nitrogen phosphorus is carried out to resource utilization recovery.
There is years of researches working foundation in present inventor's team in this area, on this, then grope in conjunction with the test of a large amount of novelties, has finally obtained following technical scheme:
In white wine waste water conventional process, a method for nitrogen phosphorus is removed and is reclaimed in strengthening, and its step is as follows:
(1) after the anaerobic pond water outlet of white wine waste water conventional processes equipment, set gradually a reaction tank and a settling tank before Aerobic Pond water inlet, and the filtrate after biological sludge mechanical dehydration in white wine waste water conventional process is back to after anaerobic pond water outlet in newly-installed reaction tank, mix with anaerobic pond water outlet;
In described reaction tank, stirrer is set, described settling tank surface load is 0.8～1.0m
3/ m
2h.
(2) stirrer mixing speed is set to 60～90rpm in reaction tank, to adding successively following medicament in reaction tank: magnesium oxide (or magnesium hydroxide), sodium hydroxide and cationic-type polyacrylamide;
Wherein, the dosage of magnesium oxide or magnesium hydroxide measures with magnesium elements, and dropping into the magnesium elements of reaction tank and the mol ratio of reaction tank Phosphorus From Wastewater element is (1.1-1.3): 1;
The dosage of sodium hydroxide is 30-50mg/L;
The dosage of cationic-type polyacrylamide is 5-8mg/L;
After having offerd medicine, reaction 15-20min;
Reaction tank water outlet enters settling tank, and settling tank water outlet enters Aerobic Pond;
(3) by settling tank sludge dewatering, obtain magnesium ammonium phosphate (struvite), nitrogen, phosphorus are able to resource utilization and reclaim.
Experimental result is as follows:
Adopt above strengthening to remove and reclaim the method for nitrogen, phosphorus, the nitrogen, the phosphorus load that enter the waste water (being settling tank water outlet) of Aerobic Pond have declined respectively 50～70%, and 90～95%(is compared with white wine waste water conventional processes).
The purity of step (3) gained magnesium ammonium phosphate is 85～95%(butt, quality percentage composition).
Compared with prior art, the method tool that nitrogen, phosphorus were removed and reclaimed in strengthening from white wine waste water conventional process of the present invention has the following advantages:
(1) adopt present method synchronous denitrification dephosphorizing, nitrogen, phosphorus are efficiently removed, and carried out resource utilization recovery; In addition, traditional A
2/ O technique synchronous denitrogen dephosphorus technology, by second pond sludge reflux to anaerobic pond, if adopt A
2/ O technique is processed white wine waste water, and this affects the removal to COD by the granule sludge activity of havoc UASB, and nitrogen, phosphorus are removed and reclaimed in present method strengthening, can overcome the traditional A of application
2the shortcoming of/O Process Treating Liquor Wastewater, has guaranteed that anaerobic process are to organic efficient removal.The method of removing and reclaim nitrogen, phosphorus of strengthening from white wine waste water conventional process provided by the present invention, processing cost is low, treatment effect is reliable, easily promotes.The method that this technology can provide the strengthening from white wine waste water conventional process of a kind of low cost, high-performance, high added value to remove and reclaim nitrogen, phosphorus, it has wide market outlook, considerable economic benefit and social benefit.
(2) present method intensified denitrification and dephosphorization chemical agent used is powder MgO or Mg (OH)
2, different with conventionally selected MgCl
2or Mg (NO
3)
2, its superiority is embodied in three aspects: the one, adopt powder MgO or Mg (OH)
2, can in and anaerobic pond go out acidity of water, improve pH value, for intensified denitrification and dephosphorization has been created condition; The 2nd, the raising of anaerobic pond water outlet pH value, for follow-up aerobic biochemical process provides favourable condition; The 3rd, adopt powder MgO or Mg (OH)
2, can reduce the salinity of waste water, be also conducive to aerobic microbiological process.
(3) present method is back to the filtrate of biological sludge mechanical dehydration in white wine waste water conventional process after anaerobic pond water outlet in (before Aerobic Pond water inlet) newly-installed reaction tank, make the phosphorus in sludge dewatering filtrate effectively be removed and reclaim, also the problem that has made up N∶P ratio in newly-installed reaction tank, has further improved the clearance of nitrogen in waste water simultaneously.
(4) this technique and flow process are compact, easy to operate, are easy to realize industrial applications.The selected device of the present invention can be realized equipment, reduce and take up an area and save energy consumption, and capital cost is reduced greatly; Meanwhile, the nitrogen phosphorus recycling of white wine waste water easily is automated to control, personnel are easy and simple to handle, have good industrial applications prospect.
Embodiment
Be below specific embodiments of the invention, technical scheme of the present invention is described further, but protection scope of the present invention is not limited to these embodiment.Every do not deviate from the change of the present invention design or be equal to and substitute and all should be included in protection scope of the present invention within.
Embodiment 1:
Process object: the comprehensive wastewater 1 that certain spirit brewing factory discharges.
Red sorghum be take as raw material in this spirit brewing factory, day generation waste water 800m
3, waste water COD
crfor 8200mg/L, total nitrogen is 218mg/L, and total phosphorus is 125mg/L, and waste water processing station adopts following conventional processes at present:
2 → filtration → the water outlet of white wine waste water → grid → coagulation → preliminary sedimentation tank → dosing reaction → air flotation pool 1 → anaerobism (UASB) → aerobic → second pond → dosing reaction → air flotation pool
Waste water after physico-chemical pretreatment, anaerobic treatment, anaerobic pond water outlet COD
crfor 790mg/L, total nitrogen 212mg/L, total phosphorus is 103mg/L, and pH value is 3.9, and the nitrogen and phosphorus load that enters Aerobic Pond is still higher, and the difficulty that subsequent technique and device are processed nitrogen phosphorus is larger.
Implementation process:
Apply the method for removing and reclaim nitrogen phosphorus of strengthening of the present invention in white wine waste water conventional process, after the anaerobic pond water outlet of white wine waste water conventional processes equipment, before Aerobic Pond water inlet, set gradually a reaction tank and a settling tank, and the filtrate after biological sludge mechanical dehydration in white wine waste water conventional process is back to after anaerobic pond water outlet in newly-installed reaction tank, mix with anaerobic pond water outlet.
In described reaction tank, the rotating speed of stirrer is set to 85rpm, and settling tank surface load is 0.8m
3/ m
2h.
To adding successively following medicament in reaction tank: powder MgO, NaOH and cationic-type polyacrylamide, MgO dosage is Mg:P=1.3:1 by the mol ratio of P element in magnesium elements and reaction tank waste water, NaOH dosage is 50mg/L, and cationic-type polyacrylamide dosage is 8mg/L;
After having offerd medicine, reaction 20min.
Reaction tank water outlet enters settling tank, and settling tank water outlet enters Aerobic Pond;
By settling tank sludge dewatering, obtain magnesium ammonium phosphate (struvite), nitrogen, phosphorus are able to resource utilization and reclaim.
Result of implementation is as follows:
Adopt above strengthening to remove and reclaim the method for nitrogen, phosphorus, the nitrogen, the phosphorus load that enter the waste water of Aerobic Pond have declined respectively 55%, 92%, pH value is 8.4, the purity of settling tank sludge dewatering gained magnesium ammonium phosphate is 88%(butt, quality percentage composition), nitrogen, phosphorus are able to resource utilization and reclaim.
Embodiment 2:
Process object: the comprehensive wastewater 1 that certain spirit brewing factory discharges.
Red sorghum be take as raw material in this spirit brewing factory, day generation waste water 800m
3, waste water COD
crfor 8200mg/L, total nitrogen is 218mg/L, and total phosphorus is 125mg/L, and waste water processing station adopts following conventional processes at present:
2 → filtration → the water outlet of white wine waste water → grid → coagulation → preliminary sedimentation tank → dosing reaction → air flotation pool 1 → anaerobism (UASB) → aerobic → second pond → dosing reaction → air flotation pool
Waste water after physico-chemical pretreatment, anaerobic treatment, anaerobic pond water outlet COD
crfor 790mg/L, total nitrogen 212mg/L, total phosphorus is 103mg/L, and pH value is 3.9, and the nitrogen and phosphorus load that enters Aerobic Pond is still higher, and the difficulty that subsequent technique and device are processed nitrogen phosphorus is larger.
Implementation process:
Apply the method for removing and reclaim nitrogen phosphorus of strengthening of the present invention in white wine waste water conventional process, after the anaerobic pond water outlet of white wine waste water conventional processes equipment, before Aerobic Pond water inlet, set gradually a reaction tank and a settling tank, and the filtrate after biological sludge mechanical dehydration in white wine waste water conventional process is back to after anaerobic pond water outlet in newly-installed reaction tank, mix with anaerobic pond water outlet.
In described reaction tank, the rotating speed of stirrer is set to 85rpm, and settling tank surface load is 0.8m
3/ m
2h.
To adding successively following medicament in reaction tank: powder Mg(OH)
2, NaOH and cationic-type polyacrylamide, Mg(OH)
2dosage is Mg:P=1.3:1 by the mol ratio of P element in magnesium elements and reaction tank waste water, and NaOH dosage is 50mg/L, and cationic-type polyacrylamide dosage is 8mg/L;
After having offerd medicine, reaction 20min.
Reaction tank water outlet enters settling tank, and settling tank water outlet enters Aerobic Pond;
By settling tank sludge dewatering, obtain magnesium ammonium phosphate (struvite), nitrogen, phosphorus are able to resource utilization and reclaim.
Result of implementation is as follows:
Adopt above strengthening to remove and reclaim the method for nitrogen, phosphorus, the nitrogen, the phosphorus load that enter the waste water of Aerobic Pond have declined respectively 57%, 93%, pH value is 8.3, the purity of settling tank sludge dewatering gained magnesium ammonium phosphate is 89%(butt, quality percentage composition), nitrogen, phosphorus are able to resource utilization and reclaim.
Embodiment 3:
Process object: the comprehensive wastewater 2 that certain spirit brewing factory discharges.
Red sorghum be take as raw material in this spirit brewing factory, day generation waste water 700m
3, waste water COD
crfor 7800mg/L, total nitrogen 155mg/L, total phosphorus concentration is 93mg/L, waste water processing station adopts following conventional processes at present:
2 → filtration → the water outlet of white wine waste water → grid → coagulation → preliminary sedimentation tank → dosing reaction → air flotation pool 1 → anaerobism (UASB) → aerobic → second pond → dosing reaction → air flotation pool
Waste water after physico-chemical pretreatment, anaerobic treatment, anaerobic pond water outlet COD
crfor 782mg/L, total nitrogen 150mg/L, total phosphorus concentration is 81mg/L, and pH value is 4.2, and the nitrogen and phosphorus load that enters Aerobic Pond is still higher, and the difficulty that subsequent technique and device are processed nitrogen phosphorus is larger.
Implementation process:
Apply the method for removing and reclaim nitrogen phosphorus of strengthening of the present invention in white wine waste water conventional process, after the anaerobic pond water outlet of white wine waste water conventional processes equipment, before Aerobic Pond water inlet, set gradually a reaction tank and a settling tank, and the filtrate after biological sludge mechanical dehydration in white wine waste water conventional process is back to after anaerobic pond water outlet in newly-installed reaction tank, mix with anaerobic pond water outlet.
In described reaction tank, the rotating speed of stirrer is set to 65rpm, and settling tank surface load is 0.9m
3/ m
2h.
In reaction tank, add successively following medicament: powder Mg (OH)
2, NaOH and cationic-type polyacrylamide, Mg (OH)
2dosage is Mg:P=1.1:1 by the mol ratio of P element in magnesium elements and reaction tank waste water, and NaOH dosage is 30mg/L, and cationic-type polyacrylamide dosage is 5mg/L;
After having offerd medicine, reaction 15min.
Reaction tank water outlet enters settling tank, and settling tank water outlet enters Aerobic Pond;
By settling tank sludge dewatering, obtain magnesium ammonium phosphate (struvite), nitrogen, phosphorus are able to resource utilization and reclaim.
Result of implementation is as follows:
Adopt above strengthening to remove and reclaim the method for nitrogen, phosphorus, the nitrogen, the phosphorus load that enter the waste water of Aerobic Pond have declined respectively 68%, 94%, and pH value is 7.8, and the purity of settling tank sludge dewatering gained magnesium ammonium phosphate is 92%(butt, quality percentage composition), nitrogen, phosphorus are able to resource utilization recovery.
Embodiment 4:
Process object: the comprehensive wastewater 2 that certain spirit brewing factory discharges.
Red sorghum be take as raw material in this spirit brewing factory, day generation waste water 700m
3, waste water COD
crfor 7800mg/L, total nitrogen 155mg/L, total phosphorus concentration is 93mg/L, waste water processing station adopts following conventional processes at present:
2 → filtration → the water outlet of white wine waste water → grid → coagulation → preliminary sedimentation tank → dosing reaction → air flotation pool 1 → anaerobism (UASB) → aerobic → second pond → dosing reaction → air flotation pool
Waste water after physico-chemical pretreatment, anaerobic treatment, anaerobic pond water outlet COD
crfor 782mg/L, total nitrogen 150mg/L, total phosphorus concentration is 81mg/L, and pH value is 4.2, and the nitrogen and phosphorus load that enters Aerobic Pond is still higher, and the difficulty that subsequent technique and device are processed nitrogen phosphorus is larger.
Implementation process:
Apply the method for removing and reclaim nitrogen phosphorus of strengthening of the present invention in white wine waste water conventional process, after the anaerobic pond water outlet of white wine waste water conventional processes equipment, before Aerobic Pond water inlet, set gradually a reaction tank and a settling tank, and the filtrate after biological sludge mechanical dehydration in white wine waste water conventional process is back to after anaerobic pond water outlet in newly-installed reaction tank, mix with anaerobic pond water outlet.
In described reaction tank, the rotating speed of stirrer is set to 65rpm, and settling tank surface load is 0.9m
3/ m
2h.
To adding successively following medicament in reaction tank: powder MgO, NaOH and cationic-type polyacrylamide, MgO dosage is Mg:P=1.1:1 by the mol ratio of P element in magnesium elements and reaction tank waste water, NaOH dosage is 30mg/L, and cationic-type polyacrylamide dosage is 5mg/L;
After having offerd medicine, reaction 15min.
Reaction tank water outlet enters settling tank, and settling tank water outlet enters Aerobic Pond;
By settling tank sludge dewatering, obtain magnesium ammonium phosphate (struvite), nitrogen, phosphorus are able to resource utilization and reclaim.
Result of implementation is as follows:
Adopt above strengthening to remove and reclaim the method for nitrogen, phosphorus, the nitrogen, the phosphorus load that enter the waste water of Aerobic Pond have declined respectively 67%, 93%, and pH value is 7.7, and the purity of settling tank sludge dewatering gained magnesium ammonium phosphate is 93%(butt, quality percentage composition), nitrogen, phosphorus are able to resource utilization recovery.
Embodiment 5:
Process object: certain spirit brewing comprehensive wastewater that factory discharges 3.
Red sorghum be take as raw material in this spirit brewing factory, day generation waste water 850m
3, waste water COD
crfor 8600mg/L, total nitrogen 196mg/L, total phosphorus concentration is 110mg/L, waste water processing station adopts following conventional processes at present:
2 → filtration → the water outlet of white wine waste water → grid → coagulation → preliminary sedimentation tank → dosing reaction → air flotation pool 1 → anaerobism (UASB) → aerobic → second pond → dosing reaction → air flotation pool
Waste water after physico-chemical pretreatment, anaerobic treatment, anaerobic pond water outlet COD
crfor 810mg/L, total nitrogen 190mg/L, total phosphorus is 95mg/L, and pH value is 4.8, and the nitrogen and phosphorus load that enters Aerobic Pond is still higher, and the difficulty that subsequent technique and device are processed nitrogen phosphorus is larger.
Implementation process:
Apply the method for removing and reclaim nitrogen phosphorus of strengthening of the present invention in white wine waste water conventional process, after the anaerobic pond water outlet of white wine waste water conventional processes equipment, before Aerobic Pond water inlet, set gradually a reaction tank and a settling tank, and the filtrate after biological sludge mechanical dehydration in white wine waste water conventional process is back to after anaerobic pond water outlet in newly-installed reaction tank, mix with anaerobic pond water outlet.
In described reaction tank, the rotating speed of stirrer is set to 75rpm, and settling tank surface load is 0.92m
3/ m
2h.
To adding successively following medicament in reaction tank: powder MgO, NaOH and cationic-type polyacrylamide, MgO dosage is Mg:P=1.2:1 by the mol ratio of P element in magnesium elements and reaction tank waste water, NaOH dosage is 40mg/L, and cationic-type polyacrylamide dosage is 7mg/L;
After having offerd medicine, reaction 18min.
Reaction tank water outlet enters settling tank, and settling tank water outlet enters Aerobic Pond;
By settling tank sludge dewatering, obtain magnesium ammonium phosphate (struvite), nitrogen, phosphorus are able to resource utilization and reclaim.
Result of implementation is as follows:
Adopt above strengthening to remove and reclaim the method for nitrogen, phosphorus, the nitrogen, the phosphorus load that enter the waste water of Aerobic Pond have declined respectively 60%, 91%, and pH value is 8.0, and the purity of settling tank sludge dewatering gained magnesium ammonium phosphate is 90%(butt, quality percentage composition), nitrogen, phosphorus are able to resource utilization recovery.
Embodiment 6:
Process object: certain spirit brewing comprehensive wastewater that factory discharges 3.
Red sorghum be take as raw material in this spirit brewing factory, day generation waste water 850m
3, waste water COD
crfor 8600mg/L, total nitrogen 196mg/L, total phosphorus concentration is 110mg/L, waste water processing station adopts following conventional processes at present:
2 → filtration → the water outlet of white wine waste water → grid → coagulation → preliminary sedimentation tank → dosing reaction → air flotation pool 1 → anaerobism (UASB) → aerobic → second pond → dosing reaction → air flotation pool
Waste water after physico-chemical pretreatment, anaerobic treatment, anaerobic pond water outlet COD
crfor 810mg/L, total nitrogen 190mg/L, total phosphorus is 95mg/L, and pH value is 4.8, and the nitrogen and phosphorus load that enters Aerobic Pond is still higher, and the difficulty that subsequent technique and device are processed nitrogen phosphorus is larger.
Implementation process:
Apply the method for removing and reclaim nitrogen phosphorus of strengthening of the present invention in white wine waste water conventional process, after the anaerobic pond water outlet of white wine waste water conventional processes equipment, before Aerobic Pond water inlet, set gradually a reaction tank and a settling tank, and the filtrate after biological sludge mechanical dehydration in white wine waste water conventional process is back to after anaerobic pond water outlet in newly-installed reaction tank, mix with anaerobic pond water outlet.
In described reaction tank, the rotating speed of stirrer is set to 75rpm, and settling tank surface load is 0.92m
3/ m
2h.
In reaction tank, add successively following medicament: powder Mg (OH)
2, NaOH and cationic-type polyacrylamide, Mg (OH)
2dosage is Mg:P=1.2:1 by the mol ratio of P element in magnesium elements and reaction tank waste water, and NaOH dosage is 40mg/L, and cationic-type polyacrylamide dosage is 7mg/L;
After having offerd medicine, reaction 18min.
Reaction tank water outlet enters settling tank, and settling tank water outlet enters Aerobic Pond;
By settling tank sludge dewatering, obtain magnesium ammonium phosphate (struvite), nitrogen, phosphorus are able to resource utilization and reclaim.
Result of implementation is as follows:
Adopt above strengthening to remove and reclaim the method for nitrogen, phosphorus, the nitrogen, the phosphorus load that enter the waste water of Aerobic Pond have declined respectively 61%, 92%, and pH value is 8.1, and the purity of settling tank sludge dewatering gained magnesium ammonium phosphate is 89%(butt, quality percentage composition), nitrogen, phosphorus are able to resource utilization recovery.
Claims (1)
1. in white wine waste water conventional process, strengthen a method of removing and reclaim nitrogen phosphorus, its step is as follows:
(1) after the anaerobic pond water outlet of white wine waste water treatment process equipment, set gradually a reaction tank and a settling tank before Aerobic Pond water inlet, and the filtrate after biological sludge mechanical dehydration in white wine wastewater treatment process is back to after anaerobic pond water outlet in newly-installed reaction tank, mix with anaerobic pond water outlet;
In described reaction tank, stirrer is set, described settling tank surface load is 0.8～1.0m
3/ m
2h;
(2) to adding successively following medicament in reaction tank: magnesium oxide, sodium hydroxide and cationic-type polyacrylamide;
Or add following medicament: magnesium hydroxide, sodium hydroxide and cationic-type polyacrylamide;
Wherein, the dosage of magnesium oxide or magnesium hydroxide measures with magnesium elements, and dropping into the magnesium elements of reaction tank and the mol ratio of reaction tank Phosphorus From Wastewater element is 1.1-1.3:1;
The dosage of sodium hydroxide is 30-50mg/L;
The dosage of cationic-type polyacrylamide is 5-8mg/L;
After having offerd medicine, reaction 15-20min;
Reaction tank water outlet enters settling tank, and settling tank water outlet enters Aerobic Pond;
(3) by settling tank sludge dewatering, obtain magnesium ammonium phosphate.
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| CN201410006438.0A CN103708596B (en) | 2014-01-07 | 2014-01-07 | In a kind of white wine wastewater conventional process, strengthening is removed and reclaims the method for nitrogen phosphorus |
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|---|---|---|---|
| CN201410006438.0A CN103708596B (en) | 2014-01-07 | 2014-01-07 | In a kind of white wine wastewater conventional process, strengthening is removed and reclaims the method for nitrogen phosphorus |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104556471A (en) * | 2014-12-04 | 2015-04-29 | 常州大学 | Method for restoring phosphatic substances in slow-release water body |
| CN107619153A (en) * | 2017-09-25 | 2018-01-23 | 罗定市丰智酒业有限公司 | A kind of liquor production wastewater biodegradation system Construction method |
| CN108751572A (en) * | 2018-05-17 | 2018-11-06 | 沈阳建筑大学 | A kind of wastewater treatment equipment and method of intensified denitrification and dephosphorization |
| CN110498578A (en) * | 2019-09-25 | 2019-11-26 | 厦门海洋职业技术学院 | A kind of recovery method of fats and oils processing high phosphorus Phosphorus From Wastewater |
| CN113860703A (en) * | 2021-09-17 | 2021-12-31 | 华南理工大学 | Method for reducing and recycling excess sludge through persulfate pretreatment by thermal activation |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101962244A (en) * | 2009-06-12 | 2011-02-02 | 中国环境科学研究院 | Livestock breeding wastewater nutrient pollution control and recycling process |
-
2014
- 2014-01-07 CN CN201410006438.0A patent/CN103708596B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101962244A (en) * | 2009-06-12 | 2011-02-02 | 中国环境科学研究院 | Livestock breeding wastewater nutrient pollution control and recycling process |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104556471A (en) * | 2014-12-04 | 2015-04-29 | 常州大学 | Method for restoring phosphatic substances in slow-release water body |
| CN107619153A (en) * | 2017-09-25 | 2018-01-23 | 罗定市丰智酒业有限公司 | A kind of liquor production wastewater biodegradation system Construction method |
| CN107619153B (en) * | 2017-09-25 | 2020-09-22 | 罗定市丰智酒业有限公司 | Construction method of liquor production wastewater biodegradation system |
| CN108751572A (en) * | 2018-05-17 | 2018-11-06 | 沈阳建筑大学 | A kind of wastewater treatment equipment and method of intensified denitrification and dephosphorization |
| CN110498578A (en) * | 2019-09-25 | 2019-11-26 | 厦门海洋职业技术学院 | A kind of recovery method of fats and oils processing high phosphorus Phosphorus From Wastewater |
| CN113860703A (en) * | 2021-09-17 | 2021-12-31 | 华南理工大学 | Method for reducing and recycling excess sludge through persulfate pretreatment by thermal activation |
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| Publication number | Publication date |
|---|---|
| CN103708596B (en) | 2015-09-02 |
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