CN106477818A - A kind of processing method of food wastewater - Google Patents
A kind of processing method of food wastewater Download PDFInfo
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- CN106477818A CN106477818A CN201611004380.1A CN201611004380A CN106477818A CN 106477818 A CN106477818 A CN 106477818A CN 201611004380 A CN201611004380 A CN 201611004380A CN 106477818 A CN106477818 A CN 106477818A
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- sludge
- food wastewater
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- waste water
- inorganic agent
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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
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
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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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/722—Oxidation by peroxides
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/32—Nature of the water, waste water, sewage or sludge to be treated from the food or foodstuff industry, e.g. brewery waste waters
-
- 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
- C02F2305/02—Specific form of oxidant
- C02F2305/026—Fenton's reagent
-
- 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
- C02F3/02—Aerobic processes
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
The invention discloses a kind of processing method of food wastewater.The present invention is comprised the following steps：(1) food wastewater is removed through grid after larger impurity, is entered regulating reservoir, is carried out effective regulation of water quantity and quality；Acid adding adjusts PH to 2～4；(2) and then with pump it is lifted into a heavy pond to be pre-processed, in this stage, in order to insoluble COD in waste water is removed, inorganic agent is added, to ensure effective removal effect；Inorganic agent is added in food wastewater；(3) waste water after enters to be advanced into hydrolysis acidification pool and contact-oxidation pool carries out biochemical treatment, and water outlet enters second pond and carries out mud-water separation.Before a sludge part for second pond is back to Aerobic Pond, a part drains into sludge-tank；(4) landfill can be transported to after the sludge that each stage produces is concentrated and carries out sludge press filtration dehydration in addition or is burned.
Description
Technical field
The present invention relates to being used for Industrial waste water treatment agent technical field, it is organic that more particularly to a kind of application removes high concentration
Pollutant CODcr for food wastewater inorganic agent.
Background technology
With industrial boom, the type and quantity of waste water rapidly increase, and the pollution to water body is also increasingly extensively and tight
Weight, threatens the health and safety of the mankind.As the composition of industrial wastewater is more complicated, some are also toxic, Industrial Wastewater Treatment ratio
Municipal wastewater processes more difficult also more important.
Extensively, product species is various for raw materials for food industry, and the water yield, the water quality for discharging waste water is widely different.Main in waste water
Pollutant can be summarized as some：
(1) solid matter in waste water, such as dish leaf, pericarp, meat mincing, fowl plumage etc. are swum in；
(2) material being suspended in waste water has grease, protein, starch, colloidal substance etc.；
(3) acid in waste water, alkali, salt, carbohydrate etc. are dissolved in；
(4) silt particle of raw material entrainment and other organic matters etc.；
(5) cause a disease bacterium etc..
The feature of food industrial wastewater is that organic substance and suspension content are high, easily corrupt, general Wu big toxicity.Its danger
Evil mainly makes body eutrophication, so that causing aquatic animal and fish death, promotes the organic matter of subaqueous deposit to produce smelly
Taste, deteriorates water quality, pollutes environment.
The technique that current patented technology mostly biases toward flocculation adsorption and precipitates, such as Patent No.
CN201210483774, CN201510220252 etc., are all based on flocculation adsorption CODcr, and then improve the removal effect of CODcr
Rate.But the effect that these handling process are removed be not it is obvious that causing follow-up biochemical load still very high.So present market
It is highly desirable to one kind and flocculation not only can be taken into account, and can efficiently removes the waste water treating agent of CODcr.
Content of the invention
In view of this, the technical problem to be solved in the present invention is to provide a kind of processing method of food wastewater.The present invention
The agent composition of special preparation used in processing method, when can cause to process food wastewater, not only amount of consumption of drugs is few,
And possess efficient CODcr remove function.
For above-mentioned purpose is reached, following technical scheme is this invention takes：
A kind of processing method of food wastewater, comprises the following steps：
(1) food wastewater is removed through grid after larger impurity, is entered regulating reservoir, is carried out effective regulation of water quantity and quality；
Acid adding adjusts PH to 2～4；
(2) and then with pump it is lifted into one and sinks pond being pre-processed, in this stage, insoluble in waste water in order to remove
COD, adds inorganic agent, to ensure effective removal effect；Inorganic agent is added in food wastewater, mix standing 35～
45min, inorganic agent dosage are 20～30mg/L waste water；
(3) waste water after enters to be advanced into hydrolysis acidification pool and contact-oxidation pool carries out biochemical treatment, and water outlet enters two and sinks
Pond carries out mud-water separation.Before a sludge part for second pond is back to Aerobic Pond, a part drains into sludge-tank；
(4) landfill can be transported to after the sludge that each stage produces is concentrated and carries out sludge press filtration dehydration in addition or is burned.
In technique scheme, described for food wastewater inorganic agent, in parts by weight, composed of the following components：
Graphite powder：10～20, ferric sulfate：30～40, ammonium sulfate：5～10,
Hydrogen peroxide：10～15, zeolite molecular sieve：10～15, iron powder：5～10,
Ferrosilite：10～20, polyacrylamide：3～5.
Described novel process agent preparation technology is：By proportioning, after each component is mixed, can obtain after dispersed with stirring is uniform
Finished product.
The degraded and the removal that can be used for high organic pollution CODcr for food wastewater inorganic agent of the present invention, control are thrown
Measure as 20～30mg/L waste water.
The principle of the present invention is：Fenton reagent is entered with ferrous ion (Fe2+) as catalyst hydrogen peroxide (H2O2)
The method of wastewater treatment of row chemical oxidation.The system being made up of ferrous ion and hydrogen peroxide, also referred to as Fenton reagent, it can generate
The hydroxyl radical free radical of strong oxidizing property, is generated organic free radical in aqueous and is allowed to structure destruction, finally with hardly degraded organic substance
Oxidation Decomposition.Its course of reaction is as follows：
Fe2++H2O2==Fe3++OH-+HO·
Fe3++H2O2+OH-==Fe2++H2O+HO·
Fe3++H2O2==Fe2++H++HO2
HO2+H2O2==H2O+O2↑+HO·
Fenton reagent is reacted by above, and (hydroxyl radical free radical, electrode potential 2.80EV are only second to constantly to produce HO
F2) so that whole system has strong oxidizing property.
Compared with prior art, the distinguishing feature of the present invention is the efficient catalytic function that not only can utilize Fenton reagent,
And flocculation adsorption function is utilized, it is that the efficient effect of Fenton reagent provides very big surface area, so as to promote the drop of CODcr
Solution, reduces the consumption of inorganic agent.
Specific embodiment
Below in conjunction with specific embodiment, the invention will be further described.
Embodiment 1
A kind of processing method of food wastewater, comprises the following steps：
(1) food wastewater is removed through grid after larger impurity, is entered regulating reservoir, is carried out effective regulation of water quantity and quality；
Acid adding adjusts PH to 2～4；
(2) and then with pump it is lifted into one and sinks pond being pre-processed, in this stage, insoluble in waste water in order to remove
COD, adds inorganic agent, to ensure effective removal effect；Inorganic agent is added in food wastewater, mix standing 35～
45min, inorganic agent dosage are 20～30mg/L waste water；
(3) waste water after enters to be advanced into hydrolysis acidification pool and contact-oxidation pool carries out biochemical treatment, and water outlet enters two and sinks
Pond carries out mud-water separation.Before a sludge part for second pond is back to Aerobic Pond, a part drains into sludge-tank；
(4) landfill can be transported to after the sludge that each stage produces is concentrated and carries out sludge press filtration dehydration in addition or is burned.
In technique scheme, described for food wastewater inorganic agent, in parts by weight, composed of the following components：
Graphite powder：10, ferric sulfate：30, ammonium sulfate：5,
Hydrogen peroxide：10, zeolite molecular sieve：10, iron powder：5,
Ferrosilite：10, polyacrylamide：3.
Taking above-mentioned reacted clear liquid carries out COD CODcr measure, obtains following result：CODcr clearance is
84.6%.
Embodiment 2
The wastewater treatment operation of the present embodiment with embodiment 1, the present embodiment for food wastewater inorganic agent, with weight portion
Meter, composed of the following components：
Graphite powder：15, ferric sulfate：35, ammonium sulfate：8,
Hydrogen peroxide：13, zeolite molecular sieve：12, iron powder：8,
Ferrosilite：15, polyacrylamide：4.
It is added to above-mentioned in high concentration COD cr waste water in proportion for food wastewater inorganic agent, then mixes quiet
35～45min is put, dosage is 20～30mg/L.
Taking above-mentioned reacted clear liquid carries out COD CODcr measure, obtains following result：CODcr clearance is
89.3%.
Embodiment 3
The wastewater treatment operation of the present embodiment with embodiment 1, the present embodiment for food wastewater inorganic agent, with weight portion
Meter, composed of the following components：
Graphite powder：20, ferric sulfate：40, ammonium sulfate：10,
Hydrogen peroxide：15, zeolite molecular sieve：15, iron powder：10,
Ferrosilite：20, polyacrylamide：5.
It is added to above-mentioned in high concentration COD cr waste water in proportion for food wastewater inorganic agent, then mixes quiet
35～45min is put, dosage is 20～30mg/L waste water.
Taking above-mentioned reacted clear liquid carries out COD CODcr measure, obtains following result：CODcr clearance is
81.7%.
In above-described embodiment, described for food wastewater inorganic agent preparation technology is：By proportioning, each component is mixed
Afterwards, finished product can be obtained after dispersed with stirring is uniform.
Common commercially available prod is all for preparing the raw material in above-described embodiment for food wastewater inorganic agent.
Claims (2)
1. a kind of processing method of food wastewater, it is characterised in that comprise the following steps：
(1) food wastewater is removed through grid after larger impurity, is entered regulating reservoir, is carried out effective regulation of water quantity and quality；Acid adding
Adjustment PH to 2～4；
(2) and then with pump it is lifted into a heavy pond to be pre-processed, in this stage, in order to remove insoluble COD in waste water, plus
Enter inorganic agent, to ensure effective removal effect；Inorganic agent is added in food wastewater, mixes 35～45min of standing, is processed
Agent dosage is 20～30mg/L waste water；
(3) waste water after enters to be advanced into hydrolysis acidification pool and contact-oxidation pool carries out biochemical treatment, and water outlet enters second pond and enters
Row mud-water separation；Before a sludge part for second pond is back to Aerobic Pond, a part drains into sludge-tank；
(4) landfill can be transported to after the sludge that each stage produces is concentrated and carries out sludge press filtration dehydration in addition or is burned.
2. the processing method of a kind of food wastewater according to claim 1, it is characterised in that described for food wastewater
Inorganic agent, in parts by weight, composed of the following components：
Graphite powder：10～20, ferric sulfate：30～40, ammonium sulfate：5～10,
Hydrogen peroxide：10～15, zeolite molecular sieve：10～15, iron powder：5～10,
Ferrosilite：10～20, polyacrylamide：3～5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611004380.1A CN106477818A (en) | 2016-11-15 | 2016-11-15 | A kind of processing method of food wastewater |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611004380.1A CN106477818A (en) | 2016-11-15 | 2016-11-15 | A kind of processing method of food wastewater |
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| CN106477818A true CN106477818A (en) | 2017-03-08 |
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| CN201611004380.1A Withdrawn CN106477818A (en) | 2016-11-15 | 2016-11-15 | A kind of processing method of food wastewater |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109019741A (en) * | 2017-06-09 | 2018-12-18 | 湖州欧美新材料有限公司 | It is a kind of handle heavy metal wastewater thereby chemosorbent and its application |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104724892A (en) * | 2015-03-30 | 2015-06-24 | 湖州华鼎贸易有限公司 | Treatment method of acidic dye industrial wastewater |
| CN104743750A (en) * | 2015-03-30 | 2015-07-01 | 湖州华鼎贸易有限公司 | Method for treating pulp papermaking industrial wastewater |
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2016
- 2016-11-15 CN CN201611004380.1A patent/CN106477818A/en not_active Withdrawn
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104724892A (en) * | 2015-03-30 | 2015-06-24 | 湖州华鼎贸易有限公司 | Treatment method of acidic dye industrial wastewater |
| CN104743750A (en) * | 2015-03-30 | 2015-07-01 | 湖州华鼎贸易有限公司 | Method for treating pulp papermaking industrial wastewater |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109019741A (en) * | 2017-06-09 | 2018-12-18 | 湖州欧美新材料有限公司 | It is a kind of handle heavy metal wastewater thereby chemosorbent and its application |
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Application publication date: 20170308 |