CN102775018A - Phosphorus removing and coupling process of sewage sludge treatment - Google Patents
Phosphorus removing and coupling process of sewage sludge treatment Download PDFInfo
- Publication number
- CN102775018A CN102775018A CN2012102591187A CN201210259118A CN102775018A CN 102775018 A CN102775018 A CN 102775018A CN 2012102591187 A CN2012102591187 A CN 2012102591187A CN 201210259118 A CN201210259118 A CN 201210259118A CN 102775018 A CN102775018 A CN 102775018A
- Authority
- CN
- China
- Prior art keywords
- sewage sludge
- phosphuret
- hydrogen
- phosphine
- reactor
- Prior art date
- 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.)
- Granted
Links
Landscapes
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Treatment Of Sludge (AREA)
- Water Treatment By Sorption (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The invention discloses a phosphorus removing and coupling process of sewage sludge treatment. According to the process, phosphorus in the sewage sludge is converted into the form of phosphine which is absorbed for cycling, and external emission of the sludge is not needed in the whole process. The process comprises a first anaerobic process of the sewage sludge and a second aerobic process of the sewage sludge, subjecting the generated phosphine in the processes to drying and deacidification respectively, inducing the phosphine into an absorption column filled with phosphine recycling absorption unit fillers to achieve the recycling of the phosphine, and directly transporting montmorillonitic clay absorbents for absorbing the phosphine to a landfill area for burying. According to the process, the montmorillonitic clay absorbents are added into the follow-up absorption column of an anaerobic reactor to absorb the generated phosphine, then commonly reacted adsorbents are buried into the soil directly, so that environmental pollution is avoided, the recycling process of the phosphine is completed, and standard removing of phosphorus of the sewage sludge and rapid generation and recycling of the phosphine are achieved.
Description
Technical field
The present invention relates to the purifying treatment method of sewage, the dephosphorization coupling phosphorus technology that particularly a kind of sewage sludge is handled.
Background technology
The body eutrophication problem is one of current main environmental problem, has seriously restricted society and economic Sustainable development.Phosphorus is one of important factor of bringing out body eutrophication as nutritional factor.Wherein the phosphorus in the water body is mainly derived from sewage, washing composition and trade effluent, and the phosphorus of how removing effectively in the waste water is the hot issue of countries in the world environmental engineering investigator research always.The investigator has carried out a large amount of research to dephosphorization theory, technology and related process thereof both at home and abroad.But most of with consume ample resources, energy be cost with pollutant removals such as the nitrogen in the sewage, phosphorus, the shortcoming that exists " to consume energy " pollution to marry again.So it is the focus that scientific circles pay close attention to that the sewage dephosphorization technology that breaks traditions, the resource utilization of realization phosphor in sewage become.
Be recovered as the research focus with the struvite form in recent years.The dephosphorization technique that reclaims with the struvite form can be used for treatment of high concentration ammonia nitrogen waste water and high concentration phosphorus hydrochlorate waste water and contain ammonia nitrogen in high density and phosphate waste simultaneously, can also reduce the atmosphere greenhouse gases of some oxynitride types of generation in the waste water.But these research major side overweight the chemical method recycling; The chemical method dephosphorization is not only that medicament costs an arm and a leg, working cost is higher, a large amount of anionic residues are stayed in the water; Cause the salinity of water to increase; Cause secondary pollution, nitrogen, the phosphorus content of water outlet simultaneously all also do not reach emission standard, also need be used as further processing.
And biological phosphate-eliminating coupling phosphor resource process is the technological line of economical rationality, and this technology also becomes possibility gradually.Phosphorus in the sewage possibly under the anaerobion effect, be reduced generation phosphuret-(t)ed hydrogen as the precursor of phosphuret-(t)ed hydrogen fully, exists with free state, matrix ADSORPTION STATE phosphuret-(t)ed hydrogen (matrix-bound) form.Investigation to phosphorus in the anaerobic waste water treating processes finds that wherein total phosphorus loses up 78%.These find to sewage dephosphorization and phosphorus recovery working cycle thinking to be provided, and it shows that not only in the sewage dephosphorization process, phosphorus can be removed with gaseous form, show that also phosphorus can carry out resource utilization with gaseous form and reclaim in working cycle.So the discovery of phosphuret-(t)ed hydrogen in sewage treatment process caused people's common concern at once.
Therefore how study phosphorus in sewage dephosphorization anaerobic reactor system and the technology thereof changes into phosphuret-(t)ed hydrogen, phosphuret-(t)ed hydrogen and finally how to stablize problems such as resource utilization; And then in the announcement waste water phosphorus conversion process with remove mechanism; Set up the resource utilization process engineering for regenerating; To widening the range of application of sewage dephosphorization biotechnology, the technology that changes tradition " consuming energy " is significant.
Summary of the invention
The objective of the invention is to deficiency to prior art; The dephosphorization coupling phosphorus technology that provides a kind of sewage sludge to handle; In sewage sludge dephosphorization process; Phosphorus is removed with the phosphuret-(t)ed hydrogen form, and carries out resource utilization and reclaim to reduce the sewage phosphorus processing cost, improves whole sewage phosphorus treatment technology level.
The dephosphorization coupling phosphorus technology that sewage sludge of the present invention is handled; It is the form that the phosphorus in the sewage sludge is changed into phosphuret-(t)ed hydrogen; Again phosphuret-(t)ed hydrogen is absorbed and makes its resource utilization, in whole process flow, do not need mud is carried out outer the discharging, it is characterized in that this technology comprises following operation sequence:
(1) anaerobic technique of sewage sludge
1. in vertical anaerobic baffled reactor, adding sewage sludge, and adding pH value that the buffer reagent sodium hydrogencarbonate regulates sewage sludge between 6～6.5, the glucose that adds an amount of concentration and be 500mg/L is as reducing sugar;
2. vertical anaerobic baffled reactor is in the lucifuge case, be in the environment of complete dark, and the temperature in the maintenance reactor drum is 32 ± 1 ℃;
3. feed nitrogen at the air intake place of vertical anaerobic baffled reactor bottom and begin aeration, gas flow is 0.08 ~ 0.09 m
3/ h (preferred 0.08 m
3/ h), make the concentration of dissolved oxygen in the reactor drum be lower than 1mg/L; Be provided with the agitating vane of electric machine control in the vertical anaerobic baffled reactor, in aeration process, sewage sludge fully stirred, stirring intensity is 50 ~ 60r/min (preferred 50 r/min);
4. after treating that above-mentioned anaerobic reaction completely, the phosphine gas of generation is derived from the air outlet on vertical anaerobic baffled reactor top, dewaters through a moisture eliminator drying, removes CO through two placed in-line U type pipes that the porous support sodium hydrate particle is housed
2, pass through another moisture eliminator finish-drying again after, gas introduced is equipped with in the adsorption column of phosphuret-(t)ed hydrogen resource utilization absorptive unit filler, realize the recycling treatment of phosphuret-(t)ed hydrogen, this phosphuret-(t)ed hydrogen resource utilization absorptive unit filler is the montmorillonitic clay sorbent material;
(2) anaerobic technique of sewage sludge
Identical in the internal and external environment condition of the vertical anaerobic baffled reactor in this operation and the operation (1), pH value and glucose concn also with operation (1) in identical;
1. close the source nitrogen that feeds in the operation (1), change that the continuation bubbling air begins aeration the reactor drum in operation (1) in into, gas flow is 0.08 ~ 0.09m
3/ h makes the high 3mg/L of concentration of dissolved oxygen in the reactor drum, and agitating vane fully stirs sewage sludge in aeration process, and stirring intensity is 50 ~ 60 r/min;
2. after treating that aerobic reaction completely, the phosphine gas of generation is derived from the air outlet on reactor drum top, through dry, removal CO
2After the drying, the gas introducing is equipped with in the adsorption column of phosphuret-(t)ed hydrogen resource utilization absorptive unit filler, realizes the recycling treatment of phosphuret-(t)ed hydrogen, this phosphuret-(t)ed hydrogen resource utilization absorptive unit filler is the montmorillonitic clay sorbent material;
The montmorillonitic clay sorbent material that (3) will adsorb phosphuret-(t)ed hydrogen directly is transported to the landfill district and places into the soil.
Further; In the step (2) 2. specifically: after treating that above-mentioned aerobic reaction is completely; The phosphine gas that generates is derived from the air outlet on reactor drum top, dewaters through a moisture eliminator drying, removes CO through two placed in-line U type pipes that porous support, sodium hydrate particle are housed
2, said sodium hydrate particle is attached on the porous support surface; After passing through another moisture eliminator finish-drying again, the gas introducing is equipped with in the adsorption column of phosphuret-(t)ed hydrogen resource utilization absorptive unit filler, realizes the recycling treatment of phosphuret-(t)ed hydrogen, this phosphuret-(t)ed hydrogen resource utilization absorptive unit filler is the montmorillonitic clay sorbent material; Said porous support can be cellular ceramic substrate or other polyalcohol stephanoporate carriers.
Further, pH value of adjusting sewage sludge is 6 in the operation (1) of the dephosphorization coupling phosphorus technology of this sewage sludge processing and (2).
Further, the temperature in reactor drum is 32 ℃ in the operation (1) of the dephosphorization coupling phosphorus technology of this sewage sludge processing and (2).
Further, the source nitrogen of aeration and air source are that air intake through threeway and reactor bottom links to each other in the dephosphorization coupling phosphorus technology handled of this sewage sludge.
In the dephosphorization coupling phosphorus technology that this sewage sludge is handled, in anaerobic stages, phosphuret-(t)ed hydrogen has the trend of accumulation; Arrived aerobic stage, the phosphuret-(t)ed hydrogen detected value descends rapidly, but still has more stable low-level phosphuret-(t)ed hydrogen detected value at aerobic stage.
The generation of phosphuret-(t)ed hydrogen is complicated process for mikrobe, need guarantee that at first reaction process carries out in the dark, secondly needs to guarantee certain reducing power in reaction environment, promptly guarantees to have enough reducing sugars.
Result of study shows that acidic conditions can promote the mud combined hydrogen phosphide to discharge.Along with the increase of acidizing degree, the combined hydrogen phosphide rate of disappearance is accelerated in the anaerobic sludge.After phosphine concentration is reduced to a certain degree, the also corresponding decline of rate of disappearance.Stir the release that can promote phosphuret-(t)ed hydrogen, and the phosphine concentration that its quiescent conditions discharges down is about the former 1/2.Same temperature also is one of factor of influence generation phosphuret-(t)ed hydrogen.
Compared with prior art; The invention has the beneficial effects as follows: the montmorillonitic clay sorbent material is added in the follow-up adsorption column of anaerobic reactor; With the phosphuret-(t)ed hydrogen absorption that generates, during the sorbent material that will react is jointly afterwards directly placed into the soil, avoid pollution to environment; Thereby accomplish the recycling treatment of phosphuret-(t)ed hydrogen, with the phosphorus removal up to standard that realizes sewage sludge, the quick generation and the resource utilization of phosphuret-(t)ed hydrogen.
Embodiment
Below by concrete embodiment technical scheme of the present invention is described further.Following examples do not constitute qualification of the present invention.
Instance 1
(1) anaerobic technique of sewage sludge
1. in vertical anaerobic baffled reactor, adding sewage sludge, and adding pH value that the buffer reagent sodium hydrogencarbonate regulates sewage sludge 6, the glucose that adds an amount of concentration and be 500mg/L is as reducing sugar;
2. vertical anaerobic baffled reactor is in the lucifuge case, be in the environment of complete dark, and the temperature in the maintenance reactor drum is 32 ℃;
3. feed nitrogen at the air intake place of vertical anaerobic baffled reactor bottom and begin aeration, gas flow is 0.08 m
3/ h makes the concentration of dissolved oxygen in the reactor drum be lower than 1mg/L; Be provided with the agitating vane of electric machine control in the vertical anaerobic baffled reactor, in aeration process, sewage sludge fully stirred, stirring intensity is 50 r/min;
4. after treating that above-mentioned anaerobic reaction completely, the phosphine gas of generation is derived from the air outlet on vertical anaerobic baffled reactor top, dewaters through a moisture eliminator drying, removes CO through two placed in-line U type pipes that the porous support sodium hydrate particle is housed
2, pass through another moisture eliminator finish-drying again after, gas introduced is equipped with in the adsorption column of phosphuret-(t)ed hydrogen resource utilization absorptive unit filler, realize the recycling treatment of phosphuret-(t)ed hydrogen, this phosphuret-(t)ed hydrogen resource utilization absorptive unit filler is the montmorillonitic clay sorbent material;
(2) anaerobic technique of sewage sludge
Identical in the internal and external environment condition of the vertical anaerobic baffled reactor in this operation and the operation (1), pH value and glucose concn also with operation (1) in identical;
1. close the source nitrogen that feeds in the operation (1), change that the continuation bubbling air begins aeration the reactor drum in operation (1) in into, gas flow is 0.08 m
3/ h makes the high 3mg/L of concentration of dissolved oxygen in the reactor drum, and agitating vane fully stirs sewage sludge in aeration process, and stirring intensity is 50 r/min;
2. after treating that above-mentioned aerobic reaction completely, the phosphine gas of generation is derived from the air outlet on reactor drum top, dewaters through a moisture eliminator drying, removes CO through two placed in-line U type pipes that porous support, sodium hydrate particle are housed
2, said sodium hydrate particle is attached on the porous support surface; After passing through another moisture eliminator finish-drying again, the gas introducing is equipped with in the adsorption column of phosphuret-(t)ed hydrogen resource utilization absorptive unit filler, realizes the recycling treatment of phosphuret-(t)ed hydrogen, this phosphuret-(t)ed hydrogen resource utilization absorptive unit filler is the montmorillonitic clay sorbent material;
The montmorillonitic clay sorbent material that (3) will adsorb phosphuret-(t)ed hydrogen directly is transported to the landfill district and places into the soil.
The source nitrogen of aeration and air source are that the air intake through threeway and reactor bottom links to each other.
The mensuration of phosphuret-(t)ed hydrogen adopts secondary cold-trap enrichment-gc (GC/NPD) method to measure, and gc is Agilent7890A, and the total phosphorus of sewage sludge appearance adopts molybdenum-antimony anti-spectrophotometric method.In this technology in hydrogen phosphide and the sewage sludge total phosphorus content over time, result of the test sees Table 1.
Table 1
| Reaction times (h) | 1 | 2 | 3 | 4 | 5 | 6 |
| Total phosphorus (mg/L) | 30 | 28 | 30 | 27 | 26 | 20 |
| Phosphuret-(t)ed hydrogen (ng/L) | 120 | 430 | 100 | 20 | 20 | 20 |
Test-results shows that at anaerobic stages, total phosphorus concentration is steady relatively, and phosphuret-(t)ed hydrogen shows the phenomenon of accumulation, and at aerobic stage subsequently, the phosphuret-(t)ed hydrogen detected value descends rapidly, and in the time after this, keeps stable always.
In the dephosphorization coupling phosphorus technology that sewage sludge of the present invention is handled; Through optimum control to each side such as pH value, temperature, aeration flow and agitation conditions; Improved the growing amount of phosphuret-(t)ed hydrogen greatly in the anaerobic reaction stage; Realized good phosphor-removing effect, and further can keep the output of certain phosphuret-(t)ed hydrogen in the aerobic reaction stage always, realized phosphor-removing effect better sewage sludge.
Instance 2
(1) anaerobic technique of sewage sludge
1. in vertical anaerobic baffled reactor, adding sewage sludge, and adding pH value that the buffer reagent sodium hydrogencarbonate regulates sewage sludge 6.5, the glucose that adds an amount of concentration and be 500mg/L is as reducing sugar;
2. vertical anaerobic baffled reactor is in the lucifuge case, be in the environment of complete dark, and the temperature in the maintenance reactor drum is 32 ℃;
3. feed nitrogen at the air intake place of vertical anaerobic baffled reactor bottom and begin aeration, gas flow is 0.09m
3/ h makes the concentration of dissolved oxygen in the reactor drum be lower than 1mg/L; Be provided with the agitating vane of electric machine control in the vertical anaerobic baffled reactor, in aeration process, sewage sludge fully stirred, stirring intensity is 60 r/min;
4. after treating that above-mentioned anaerobic reaction completely, the phosphine gas of generation is derived from the air outlet on vertical anaerobic baffled reactor top, dewaters through a moisture eliminator drying, removes CO through two placed in-line U type pipes that the porous support sodium hydrate particle is housed
2, pass through another moisture eliminator finish-drying again after, gas introduced is equipped with in the adsorption column of phosphuret-(t)ed hydrogen resource utilization absorptive unit filler, realize the recycling treatment of phosphuret-(t)ed hydrogen, this phosphuret-(t)ed hydrogen resource utilization absorptive unit filler is the montmorillonitic clay sorbent material;
(2) anaerobic technique of sewage sludge
Identical in the internal and external environment condition of the vertical anaerobic baffled reactor in this operation and the operation (1), pH value and glucose concn also with operation (1) in identical;
1. close the source nitrogen that feeds in the operation (1), change that the continuation bubbling air begins aeration the reactor drum in operation (1) in into, gas flow is 0.09 m
3/ h makes the high 3mg/L of concentration of dissolved oxygen in the reactor drum, and agitating vane fully stirs sewage sludge in aeration process, and stirring intensity is 60 r/min;
2. after treating that above-mentioned aerobic reaction completely, the phosphine gas of generation is derived from the air outlet on reactor drum top, dewaters through a moisture eliminator drying, removes CO through two placed in-line U type pipes that porous support, sodium hydrate particle are housed
2, said sodium hydrate particle is attached on the porous support surface; After passing through another moisture eliminator finish-drying again, the gas introducing is equipped with in the adsorption column of phosphuret-(t)ed hydrogen resource utilization absorptive unit filler, realizes the recycling treatment of phosphuret-(t)ed hydrogen, this phosphuret-(t)ed hydrogen resource utilization absorptive unit filler is the montmorillonitic clay sorbent material;
The montmorillonitic clay sorbent material that (3) will adsorb phosphuret-(t)ed hydrogen directly is transported to the landfill district and places into the soil.
The source nitrogen of aeration and air source are that the air intake through threeway and reactor bottom links to each other.
The mensuration of phosphuret-(t)ed hydrogen adopts secondary cold-trap enrichment-gc (GC/NPD) method to measure, and gc is Agilent7890A, and the total phosphorus of sewage sludge appearance adopts molybdenum-antimony anti-spectrophotometric method.In this technology in hydrogen phosphide and the sewage sludge total phosphorus content over time, result of the test sees Table 2.
Table 2
| Reaction times (h) | 1 | 2 | 3 | 4 | 5 | 6 |
| Total phosphorus (mg/L) | 31 | 29 | 30 | 27 | 26 | 20 |
| Phosphuret-(t)ed hydrogen (ng/L) | 125 | 425 | 100 | 20 | 20 | 20 |
Test-results shows that at anaerobic stages, total phosphorus concentration is steady relatively, and phosphuret-(t)ed hydrogen shows the phenomenon of accumulation, and at aerobic stage subsequently, the phosphuret-(t)ed hydrogen detected value descends rapidly, and in the time after this, keeps stable always.
In the dephosphorization coupling phosphorus technology that sewage sludge of the present invention is handled; Through optimum control to each side such as pH value, temperature, aeration flow and agitation conditions; Improved the growing amount of phosphuret-(t)ed hydrogen greatly in the anaerobic reaction stage; Realized good phosphor-removing effect, and further can keep the output of certain phosphuret-(t)ed hydrogen in the aerobic reaction stage always, realized phosphor-removing effect better sewage sludge.
To those skilled in the art; Under the enlightenment of design of the present invention and specific embodiment, some distortion that can directly derive or associate from the disclosure of invention and general knowledge, those of ordinary skills will recognize also can adopt additive method; Or the substituting of known technology commonly used in the prior art; And the unsubstantiality of the mutual various combination between characteristic or the like changes, and can be employed equally, can both realize representation function of the present invention and effect; Launch for example no longer one by one to describe in detail, all belong to protection domain of the present invention.
Claims (6)
1. the dephosphorization coupling phosphorus technology handled of a sewage sludge is characterized in that may further comprise the steps:
(1) anaerobic technique of sewage sludge
1. in vertical anaerobic baffled reactor, adding sewage sludge, and adding pH value that the buffer reagent sodium hydrogencarbonate regulates sewage sludge between 6～6.5, the glucose that adds concentration and be 500 (mg/L) is as reducing sugar;
2. vertical anaerobic baffled reactor is in the lucifuge case, be in the environment of complete dark, and the temperature in the maintenance reactor drum is 32 ± 1 ℃;
3. feed nitrogen at the air intake place of vertical anaerobic baffled reactor bottom and begin aeration, gas flow is 0.08 ~ 0.09 m
3/ h makes the concentration of dissolved oxygen in the reactor drum be lower than 1mg/L; Be provided with the agitating vane of electric machine control in the vertical anaerobic baffled reactor, in aeration process, sewage sludge fully stirred, stirring intensity is 50 ~ 60r/min;
4. after treating that above-mentioned anaerobic reaction fully, the phosphine gas of generation is derived from the air outlet on vertical anaerobic baffled reactor top, through dry, removal CO
2After the drying, the gas introducing is equipped with in the adsorption column of phosphuret-(t)ed hydrogen resource utilization absorptive unit filler, realizes the recycling treatment of phosphuret-(t)ed hydrogen, this phosphuret-(t)ed hydrogen resource utilization absorptive unit filler is the montmorillonitic clay sorbent material;
(2) anaerobic technique of sewage sludge
1. close the source nitrogen that feeds in the step (1), change that the continuation bubbling air begins aeration the vertical anaerobic baffled reactor in step (1) in into, gas flow is 0.08 ~ 0.09m
3/ h makes the concentration of dissolved oxygen in the reactor drum be higher than 3mg/L, and agitating vane fully stirs sewage sludge in aeration process, and stirring intensity is 50 ~ 60 r/min;
2. after treating that aerobic reaction completely, the phosphine gas of generation is derived from the air outlet on reactor drum top, through dry, removal CO
2After the drying, the gas introducing is equipped with in the adsorption column of phosphuret-(t)ed hydrogen resource utilization absorptive unit filler, realizes the recycling treatment of phosphuret-(t)ed hydrogen, this phosphuret-(t)ed hydrogen resource utilization absorptive unit filler is the montmorillonitic clay sorbent material.
2. the dephosphorization coupling phosphorus technology that sewage sludge according to claim 2 is handled, it is characterized in that also comprising: the montmorillonitic clay sorbent material that will adsorb phosphuret-(t)ed hydrogen directly is transported to the landfill district and places into the soil.
3. the dephosphorization coupling phosphorus technology that sewage sludge according to claim 1 is handled is characterized in that described in step (1) and the step (2) through dry, removal CO
2Drying specifically again: dewater through a moisture eliminator drying, remove CO through two placed in-line U type pipes that porous support, sodium hydrate particle are housed
2, said sodium hydrate particle is attached on the porous support surface; Pass through another moisture eliminator finish-drying again.
4. the dephosphorization coupling phosphorus technology of handling according to the described sewage sludge of claim 1-3, the pH value that it is characterized in that all regulating in step (1) and (2) sewage sludge is 6.
5. the dephosphorization coupling phosphorus technology that sewage sludge according to claim 1 and 2 is handled is characterized in that all keeping the temperature in the reactor drum in step (1) and (2) is 32 ℃.
6. the dephosphorization coupling phosphorus technology that sewage sludge according to claim 1 is handled, the source nitrogen that it is characterized in that aeration and air source are that the air intake through threeway and reactor bottom links to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210259118.7A CN102775018B (en) | 2012-07-25 | 2012-07-25 | A kind of dephosphorization coupling phosphorus technique of sewage sludge process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210259118.7A CN102775018B (en) | 2012-07-25 | 2012-07-25 | A kind of dephosphorization coupling phosphorus technique of sewage sludge process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102775018A true CN102775018A (en) | 2012-11-14 |
| CN102775018B CN102775018B (en) | 2015-07-29 |
Family
ID=47120159
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210259118.7A Active CN102775018B (en) | 2012-07-25 | 2012-07-25 | A kind of dephosphorization coupling phosphorus technique of sewage sludge process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102775018B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107192683A (en) * | 2017-07-25 | 2017-09-22 | 福建海峡环保集团股份有限公司 | A kind of method of total phosphorus in measure sludge |
| CN110813232A (en) * | 2019-11-04 | 2020-02-21 | 北京敬科科技发展有限公司 | Sulfur-resistant adsorbent for purifying yellow phosphorus tail gas and preparation method thereof |
-
2012
- 2012-07-25 CN CN201210259118.7A patent/CN102775018B/en active Active
Non-Patent Citations (2)
| Title |
|---|
| 张可方等: "《好氧及厌氧/好氧序批式工艺中磷化氢的释放》", 《环境工程》 * |
| 林海: "《环境工程微生物学》", 31 October 2008, 冶金工业出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107192683A (en) * | 2017-07-25 | 2017-09-22 | 福建海峡环保集团股份有限公司 | A kind of method of total phosphorus in measure sludge |
| CN110813232A (en) * | 2019-11-04 | 2020-02-21 | 北京敬科科技发展有限公司 | Sulfur-resistant adsorbent for purifying yellow phosphorus tail gas and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102775018B (en) | 2015-07-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104803546B (en) | Technology for reducing and recycling treatment of sludge of sewage treatment plant | |
| CN101402489B (en) | Process for treating chemical industry tail water with immobilized microorganism-artificial wet land | |
| CN108927109B (en) | Method for modifying biochar by using phosphogypsum and application of biochar | |
| CN112588261B (en) | Preparation method of carbon-aluminum composite material | |
| CN113321345A (en) | Method for simultaneously recovering phosphorus in water body and removing antibiotics based on sludge-based biochar | |
| CN107572743B (en) | Method for treating industrial sludge by catalytic wet oxidation method | |
| CN110818077A (en) | Biological filter material based on sulfur-containing tailings and preparation method and application thereof | |
| CN108751581B (en) | Treatment process of biochemical effluent of landfill leachate | |
| Chen et al. | Recognizing the challenges of composting: Critical strategies for control, recycling, and valorization of nitrogen loss | |
| CN102775018A (en) | Phosphorus removing and coupling process of sewage sludge treatment | |
| CN103224304A (en) | Method for removing nitrogen phosphorus from sludge fermentation liquid to improve organic acid recycling effect | |
| CN112679242A (en) | Odor self-regulation composting system and process | |
| CN104787964A (en) | Method and device for treating sewage and producing biogas | |
| CN115477382A (en) | Method for resource utilization of iron-rich sludge in water treatment plant | |
| CN214060362U (en) | Self-regulation and control composting system for odor | |
| CN211814058U (en) | Sludge resource treatment device | |
| CN110171907B (en) | Catalytic internal electrolysis filler and preparation method thereof, catalytic internal electrolysis reaction device and sewage deep purification system | |
| WO2021117980A1 (en) | Process for biogasifying organic waste with high efficiency through denitrification of digestion wastewater by using digestion gas and preparation of char of digested sludge | |
| JP2018167233A (en) | Treatment method of organic sludge and sulfur-containing waste | |
| CN112624330A (en) | Method for promoting anaerobic degradation of phenolic wastewater by adding biochar | |
| CN115010237A (en) | Method for removing black and odorous water body bottom mud in river channel by coupling iron-based biochar with percarbonate | |
| KR101269379B1 (en) | Treatment method for wastewater | |
| KR101177423B1 (en) | The Sludge Reduction Plant and Biological Treatment Process using metal Catalyst | |
| CN105110580A (en) | Sewage treatment process and sewage treatment system for sewage treatment process | |
| CN110092530A (en) | A kind of biochemical preparation and preparation method thereof purifying fermentation waste water |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |