CN110104796A - A kind of wastewater treatment integration medicament and its application method - Google Patents
A kind of wastewater treatment integration medicament and its application method Download PDFInfo
- Publication number
- CN110104796A CN110104796A CN201910452337.9A CN201910452337A CN110104796A CN 110104796 A CN110104796 A CN 110104796A CN 201910452337 A CN201910452337 A CN 201910452337A CN 110104796 A CN110104796 A CN 110104796A
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- China
- Prior art keywords
- medicament
- waste water
- preparation
- nitrate
- coffee grounds
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
-
- 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
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
- C02F2101/163—Nitrates
-
- 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
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
-
- 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
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
- C02F2101/22—Chromium or chromium compounds, e.g. chromates
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/06—Nutrients for stimulating the growth of microorganisms
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- Life Sciences & Earth Sciences (AREA)
- Microbiology (AREA)
- Biodiversity & Conservation Biology (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Water Treatment By Sorption (AREA)
- Treatment Of Biological Wastes In General (AREA)
Abstract
The invention discloses a kind of preparation of wastewater treatment integration medicament and its application methods.Nitrate and heavy metal pollution are generally existing at present, restore nitrate and heavy metal using heterotrophic microorganism, but this method needs additional nutrient source, easily causes secondary pollution, at high cost.Therefore cheap, sustainable sustained release solid phase nutrient source receives significant attention.It is wherein seldom as the research of solid phase nutrient source about coffee grounds and rock phosphate in powder, and it is urgently to be resolved to be discharged the problems such as total metals are not up to standard, and reduzate can not be removed thoroughly from system, coffee grounds coloration problem and excess sludge.The present invention fixes microorganism, coffee grounds and rock phosphate in powder by PVA and sodium alginate jointly, obtains one kind and is easily isolated low-cost Waste water treatment medicament.The present invention improves synchronous removal pollutant ability, and reduzate is thoroughly removed from contaminated system.Nitrate and heavy-metal composite pollution waste water can effectively be handled, be had broad application prospects using medicament prepared by the present invention.
Description
Technical field
The present invention relates to field of waste water treatment, and in particular to a kind of use in waste water treatment integration medicament and its application method.
Background technique
Underground water is a kind of and the closely bound up important natural origin of human survival, accounts for about the 30% of entire freshwater resources,
As main drinking water and domestic water source, but it is discharged since national economy rapidly develops more and more pollutants
Into underground water, ecological environment is seriously threatened, and that phenomenon coexists is very common for nitrate in groundwater and chromic salts pollutant.
By a large amount of uses of fertilizer and pesticide, infiltration etc. causes under the not qualified discharge of industrial wastewater and the leaching of solid waste
Groundwater azotate pollution be a worldwide problem, and be on the rise, nitrate itself is almost non-toxic, but enters biology
It is easily converted to the very strong nitrite of toxicity in vivo, long-term intake will lead to methemoglobinemia, abdominal pain diarrhea head occurs
Symptoms, the excessive concentrations such as dizzy nausea can make one because being choked to death.Chromate is in process hides, plating, steel processing, wood preservation simultaneously
And the extensive use that textile printing and dyeing etc. is industrial, the not qualified discharge of industrial wastewater and leakage, the random discarding of trade waste
Etc. making heavy metal chromium cause to seriously threaten to ecological environment.Chromium mainly exists in the form of Cr VI and trivalent chromium in water body, wherein
Cr VI can be readily passed through cell membrane and be had hypertoxicity due to its highly dissoluble, migration.Studies have shown that Cr VI is also
With carcinogenic, teratogenesis, mutagenic effect.Therefore, the combined pollution gesture of nitrate and chromate in natural water is solved the problems, such as
It must go and extremely urgent.
Summary of the invention
The present invention is with coffee grounds, and rock phosphate in powder, polyvinyl alcohol and sodium alginate are that matrix entrapment microorganism is used for pollutant effluents
Reparation, wherein coffee grounds is as solid-phase carbon source, coffee grounds nutriment rich in, such as phenols organic matter can be micro-
Biological utilisation, while can also be used as the adsorbent of heavy metal, rock phosphate in powder can be used as solid phase phosphorus source, active additive, microorganism
Carrier and adsorbent, polyvinyl alcohol gel can be used as microorganism embedding body and adsorbent, to improve reaction rate, prevent excess carbon
Secondary pollution caused by the phosphorus source of source, raising microorganism impact resistance and absorbing and reducing product simultaneously can be from Pollution Systems
Middle removal, regeneration keep the water outlet water outlet total amount of pollutant up to standard.
For achieving the above object, the present invention adopts the following technical scheme:
A kind of preparation method of wastewater treatment integration medicament, includes the following steps:
1) coffee grounds and rock phosphate in powder are added to the water, it is fully dispersed, obtain mixed liquor；Polyvinyl alcohol and sodium alginate are added
In obtained mixed liquor, ultrasonic disperse must mix semigel liquid；
2) microorganism after centrifugation is added into step 1) mixing semigel liquid obtained, is uniformly mixed；
3) step 2) mixing semigel drop obtained is entered in calcium chloride solution, is stirred continuously, crosslinking curing, filters,
Waste water treatment medicament is made.
Preferably, step 1) the coffee grounds phosphorus content is 10%-50%, and rock phosphate in powder partial size is 1-300 microns, and quality is dense
Degree be 0.05%-5%, polyvinyl alcohol mass concentration be 2%-10%, sodium alginate mass concentration be 0.2%-3%, ultrasound at
Reason 0.1-2 hours.
Preferably, microorganism dosage described in step 2) is 0.1-5 grams.
Preferably, calcium chloride solution mass concentration described in step 3) is 0.5%-5%, and the crosslinking curing time is 0.5-12
Hour.
Preferably, a kind of use in waste water treatment medicament as made from above-mentioned preparation method, medicament are in unifonn spherical, medicament diameter
1-6 millimeters.
A kind of application of the medicament as made from above-mentioned preparation method in the treatment of waste water.
Preferably, waste water refers specifically to the waste water simultaneously containing combined pollutants such as nitrate, chromium, vanadium.
Preferably, concrete application method are as follows: to the waste water of pollutant load 1-50 mg/litre, by solid-to-liquid ratio 0.5-5:10
The medicament is added, is shaken 2-15 days at 10-40 DEG C with 50-300 revs/min of revolving speed.
The beneficial effects of the present invention are:
1) coffee grounds in microorganism integration embedded particles and rock phosphate in powder can be used as solid-phase carbon source and solid phase phosphorus respectively
Source prevents secondary pollution caused by liquid phase nutrient source excess；It can be used as adsorbent absorbed portion pollutant；It can be used as activity
Additive improves reaction rate；It can be used as microbe carrier and improve microbial biomass；It can be with absorbing and reducing product to immobilization
Intragranular is completely removed from contaminated system so as to pollutant.
2) PVA in microorganism integration embedded particles and sodium alginate embedded material can be prevented with immobilized microorganism
Suspension microorganism is washed loss in practical application；Coffee grounds and powdered rock phosphate in powder can be fixed, allows to play maximum
Effect is unlikely to separation difficulty and blocking again；Can on absorbing and reducing product to immobilization particle so that pollutant is from contaminated system
In completely remove.
3) microorganism integration embedded particles can long-term continuous action, and be easily isolated removal, the inside and outside absorption of embedded particles
Reduzate can parse recycling, microorganism integration embedded particles are reusable after parsing.
Detailed description of the invention
Fig. 1 is the photo that wastewater treatment integration medicament is made in the embodiment of the present invention 1
Specific embodiment
The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention..
Embodiment 1
The preparation of Waste water treatment medicament, steps are as follows:
1) 0.1 gram of coffee grounds and 1.0 grams of rocks phosphate in powder are added in 100 ml deionized waters, are sufficiently mixed and are mixed
6.0 grams of polyvinyl alcohol and 1.0 grams of sodium alginates are added in mixed liquor, mixed dissolution by liquid, and ultrasonic disperse 30 minutes, sufficiently
Dissolution obtains mixing semigel liquid；
2) 30 milliliters are added into mixing semigel liquid obtained in 1) and are centrifuged obtained microorganism, be uniformly mixed.
3) the mixing semigel drop 2) obtained is entered in the calcium chloride solution of mass concentration 0.4% using syringe, together
When calcium chloride solution stirred with 100 revs/min of revolving speed；
4) 3) solution in is placed at room temperature for 2 hours, keeps the medicament of preparation full cross-linked, is obtained by filtration at product wastewater later
Manage medicament.
Waste water treatment medicament obtained above is as shown in Figure 1, medicament is brown spherical, and medicament uniform particle sizes, diameter about 4 is in the least
Rice.
Embodiment 2
Waste water treatment medicament of the invention includes the following steps: for handling nitrate and Cr VI combined pollution waste water
Waste water treatment medicament made from embodiment 1 is added to the sexavalence that volume is 100 milliliters of 10 mg/litres of mass concentration
In chromium and 50 mg/litre pollution of nitrate nitrogen waste water, 2.0 grams of medicament (in terms of dry weight) is added in every 100 milliliters of waste water, at 30 DEG C,
It is cultivated under conditions of 150 revs/min, timing sampling determination of hexavalent chromium and total chromium concn, nitrate concentration, nitrite concentration,
Ammonia nitrogen concentration；Cr VI, nitrate, nitrite, ammonia nitrogen concentration are using spectrophotometry respectively at 540,220/270,540 Hes
The measurement of 420 nanometers, total chromium concn are measured using inductively coupled plasma spectrometry generator.Through testing, 6 days achievable sexavalences
Chromium, total chromium, nitrate, nitrite completely remove.
Although above having used general explanation and specific embodiment, the present invention is described in detail, at this
On the basis of invention, it can be made some modifications or improvements, this will be apparent to those skilled in the art.Therefore,
These modifications or improvements without departing from theon the basis of the spirit of the present invention are fallen within the scope of the claimed invention.
Claims (8)
1. a kind of preparation method of Waste water treatment medicament, which comprises the steps of:
1) coffee grounds and rock phosphate in powder are added to the water, it is fully dispersed, obtain mixed liquor；PVA and sodium alginate are added mixed
It closes in liquid, ultrasonic disperse must mix semigel liquid；
2) microorganism after centrifugation is added into step 1) mixing semigel liquid obtained, is uniformly mixed；
3) step 2) mixing semigel drop obtained is entered in calcium chloride solution, is stirred continuously, crosslinking curing, filters, is made
Waste water treatment medicament.
2. preparation method according to claim 1, it is characterised in that: step 1) the coffee grounds phosphorus content is 10%-
50%, rock phosphate in powder partial size is 1-300 microns, and mass concentration 0.05%-5%, PVA mass concentration is 2%-10% sodium alginate
Mass concentration is 1%-5%, is ultrasonically treated 0.1-2 hours.
3. preparation method according to claim 1, it is characterised in that: microorganism dosage described in step 2) is 0.1-5
Gram.
4. preparation method according to claim 1, it is characterised in that: calcium chloride solution mass concentration described in step 3) is
0.5%-5%, crosslinking curing time are 0.5-12 hours.
5. use in waste water treatment medicament made from preparation method according to claim 1 to 4, it is characterised in that: the medicine
Agent be in unifonn spherical, 1-6 millimeters of medicament diameter.
6. the application of medicament in the treatment of waste water made from a kind of preparation method a method as claimed in any one of claims 1 to 5.
7. application according to claim 6, it is characterised in that: it is a kind of that the waste water contains nitrate and chromium, vanadium etc. simultaneously
Or several heavy metal species.
8. according to application described in claim 6-7, it is characterised in that: be 10-100 mg/litre, heavy metal to nitrate content
Content is the waste water of 1-50 mg/litre, the medicament is added by solid-to-liquid ratio 0.5-5:10, with 50-300 revs/min at 10-40 DEG C
Revolving speed shake 2-15 days.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910452337.9A CN110104796A (en) | 2019-05-28 | 2019-05-28 | A kind of wastewater treatment integration medicament and its application method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910452337.9A CN110104796A (en) | 2019-05-28 | 2019-05-28 | A kind of wastewater treatment integration medicament and its application method |
Publications (1)
| Publication Number | Publication Date |
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| CN110104796A true CN110104796A (en) | 2019-08-09 |
Family
ID=67492612
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910452337.9A Withdrawn CN110104796A (en) | 2019-05-28 | 2019-05-28 | A kind of wastewater treatment integration medicament and its application method |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08224564A (en) * | 1995-02-21 | 1996-09-03 | Fumakilla Ltd | Decomposition accelerator for garbage |
| CN104386831A (en) * | 2014-12-03 | 2015-03-04 | 西南科技大学 | Method of treating hexavalent chromium wastewater by immobilized microorganisms |
| CN105838701A (en) * | 2016-04-21 | 2016-08-10 | 中国地质大学（北京） | Immobilized denitrifying bacterium source particles and preparation method thereof |
| CN107034208A (en) * | 2017-05-21 | 2017-08-11 | 北京工业大学 | A kind of anaerobic ammonium oxidation sludge embeds the preparation method of gelled pill |
| CN109279698A (en) * | 2017-07-21 | 2019-01-29 | 长沙理工大学 | The method of the solid carbon source bead processing low carbon-nitrogen ratio sewage of immobilization denitrifying bacteria |
-
2019
- 2019-05-28 CN CN201910452337.9A patent/CN110104796A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08224564A (en) * | 1995-02-21 | 1996-09-03 | Fumakilla Ltd | Decomposition accelerator for garbage |
| CN104386831A (en) * | 2014-12-03 | 2015-03-04 | 西南科技大学 | Method of treating hexavalent chromium wastewater by immobilized microorganisms |
| CN105838701A (en) * | 2016-04-21 | 2016-08-10 | 中国地质大学（北京） | Immobilized denitrifying bacterium source particles and preparation method thereof |
| CN107034208A (en) * | 2017-05-21 | 2017-08-11 | 北京工业大学 | A kind of anaerobic ammonium oxidation sludge embeds the preparation method of gelled pill |
| CN109279698A (en) * | 2017-07-21 | 2019-01-29 | 长沙理工大学 | The method of the solid carbon source bead processing low carbon-nitrogen ratio sewage of immobilization denitrifying bacteria |
Non-Patent Citations (2)
| Title |
|---|
| 郝会玲: "地下水硝酸盐原位修复过程中固相磷源的研究", 《中国优秀硕士学位论文全文数据库 工程科技Ι辑》 * |
| 郭芬: "《咖啡深加工》", 31 March 2014, 昆明：云南大学出版社 * |
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Application publication date: 20190809 |