CN107265601A - A kind of method of ammonia synthesis process wastewater utilization - Google Patents
A kind of method of ammonia synthesis process wastewater utilization Download PDFInfo
- Publication number
- CN107265601A CN107265601A CN201710664177.5A CN201710664177A CN107265601A CN 107265601 A CN107265601 A CN 107265601A CN 201710664177 A CN201710664177 A CN 201710664177A CN 107265601 A CN107265601 A CN 107265601A
- Authority
- CN
- China
- Prior art keywords
- waste water
- synthesis process
- ammonia synthesis
- water
- saved
- 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.)
- Pending
Links
Classifications
-
- 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
-
- 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
- C02F2001/007—Processes including a sedimentation step
-
- 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
- C02F2103/34—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32
Landscapes
- 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 provides a kind of method of ammonia synthesis process wastewater utilization, ammonia synthesis process is contained into H2S、CO2、SO28.0,9.0 gasification waste water is respectively may be about Deng pH purification sulfur recovery waste water and the pH for being about 4.0, in torch waste water and regulation pH is in alkalescent, and being then pumped into grinding machine feed trough is used for slurrying of gasifying.The present invention is fed directly to sulfur recovery subsider using alkaline waste liquor, and it is in alkalescent that mixed liquor is adjusted into pH by the uniform neutralization of waste water, is then pumped into vaporizing system pulpifier feed trough, reaches the effect of three kinds of wastewater utilizations；According to device load, fresh water supply can be completely substituted in flexible modulation and water confluent；Avoid and directly utilize equipment corrosion, fouling and the pollution problem produced by acidic and alkaline waste water, the sewage disposal expense for having saved waste water straightly discharging is used and the outer pipeline for draining into treatment tank and relevant device investment, gasification torch overflow launder and relevant device investment are saved, fresh water consumption is saved, with good operability and economy.
Description
Technical field
The invention belongs to chemical industry waste water process field, specifically, it is related to acidic and alkaline waste water in a kind of ammonia synthesis process
Comprehensive utilization method.
Background technology
Ammonia synthesis process purifies sulfur recovery waste water because containing H2S、CO2、SO2Etc. aobvious acidity, gasification system torch water sealed tank overflows
Flow liquid and gasification waste water are because containing NH3And aobvious alkalescence, design is usually by waste water straightly discharging to Sewage Disposal.Some enterprises in order to
Water use efficiency is improved, technological transformation acid waste water or torch water sealed tank overflow alkali lye, gasification waste water are used for grinding machine slurrying, be solution first
Gassing body toxicity, smell are larger, and the electric wiring, instrument element to the device region cause damage and environmental pollution, use one
After the section time, grinding machine feed pump, pipe fitting valve, grinding machine chute and rotary screen etc. all cause different degrees of corrosion, and pipeline is set
Standby often leakage；If directly utilizing alkaline waste water, one is the easy fouling of pipeline, and two be that high ammonia-nitrogen wastewater easily causes system band water,
Influence system stable operation；If directly by discharge of wastewater to Sewage Disposal, one is the investment such as equipment to be significantly increased, pipeline；
Two be that can increase continuous sewage treatment expense, and economy is not high.By environmental protection and actual motion requirement, technological transformation time is useless again for most enterprises
The in line mode for carrying out wastewater reuse approach of water, both wastes up-front investment, and additional investment is also increased in postorder processing.Cause
This, a kind of environmentally friendly, economical and simple easy-operating acidic and alkaline waste water of research reclaims remodeling method and energy-saving, device long period is transported
Row has highly important meaning.
Chongqing Jiangjin He Feng Co., Ltds Zhou Zhonghua, Li Chen《Industrial water and waste water》2nd phase in 2007 delivers
Paper《Ammonia synthesizing industry waste water is handled using cyclic activated sludge system》In, mention certain nitrogenous fertilizer enterprises using cyclic activated sludge system processing synthesis ammonia,
Urea industry waste water, is 8.58, NH in water inlet mean ph value3- N, COD average quality concentration is respectively 93.31,
Under conditions of 199.56mg/L, through aeration (3h), precipitation (1.5h), water (1.0h), idle (0.5h) 4 stages common 6h processing are strained
Afterwards, water outlet NH3-N, COD average quality concentration is respectively 34.60,60.92mg/L, is reached《Ammonia synthesizing industry water pollutant
Discharge standard》(GB13458-2001) require.The technique is disadvantageous in that the debugging of place CASS ponds produces a large amount of foams initial stage,
Foam viscosity is big, stability strong, and maximum height influences the normal growth of microorganism, winter water up to 50cm, again wastewater temperature
Temperature is low, and sludge is slow-growing, and effluent quality is deteriorated.
The quick grades of Environmental Science and Engineering institute of Hebei University of Science and Technology Feng Su exist《Hebei University of Science and Technology's journal》3rd phase in 2013
Publish thesis《Application of the CASS+BAF techniques in synthesis ammonia waste water processing》In, introduce the conjunction of CASS+BAF PROCESS FOR TREATMENTs
Engineering design and running situation into ammonia waste water.Engineering practice result shows：The group technology operation conditions is good, COD, NH3-
N and SS clearances have respectively reached 95%, 95% and 98%.The not outer row of waste water fully recovering after processing.But the technique is still
Water temperature in winter can not be solved low, the drawbacks of influenceing microorganism normal growth, and technique is cumbersome
CNSG Anhui Hongsifang Co., Ltd development division Wang Xiao China exists《Anhui chemical industry》2nd phase in 2014 publishes thesis
《Application of the IMC biochemical process in synthesis ammonia waste water processing》In, describe how IMC biochemical process handles and realize row up to standard
The technical characterstic put, is that Sewage Disposal sets four biochemical reaction tanks progress interval multi cycle reaction (operations 4 daily per pond first
Individual circulation, each circulates 6 hours), the sludge from biochemical reaction tank is secondly entered into sludge-tank and carries out gravitational settling, makes dirt
Mud concentration is improved to moisture content 98%, and supernatant is discharged into wastewater collection pond circular treatment.The shortcoming of the technique is to invest greatly, work
Skill is cumbersome, and still without the technological deficiency for solving the low influence microorganism growth of water temperature in winter.
Chinese patent (the patent No.：201310260239.8, patent name：It is a kind of to synthesize what ammonia waste water treatment agent was added
New method) use totally enclosed type medicament addition manner, although production safety is ensure that, but does not still solve the corrosion of medicament
Property, it is inflammable and explosive the characteristics of.
Existing domestic synthesis ammonia waste water handling process still suffers from following drawback：
(1) main flow synthesis ammonia waste water handling process CASS ponds debugging produces a large amount of foams initial stage, and foam viscosity is big, stability strong,
Maximum height is up to 50cm.
(2) water temperature in winter is low, influences the normal growth of microorganism, and sludge is slow-growing, and effluent quality is deteriorated.
(3) medicament adding technology can not solve corrosivity and inflammable and explosive defective workmanship, there is safety problem.
(4) handling process is cumbersome, the low defect of efficiency.
The content of the invention
It is not enough to solve existing process, according to site technique needs, invent a kind of ammonia synthesis process wastewater utilization
Method.
A kind of processing step of the method for ammonia synthesis process wastewater utilization is as follows：
(1) alkaline waste liquor is fed directly to sulfur recovery subsider using torch water sealed tank static pressure difference；
(2) mixed liquor regulation PH is in by introducing portion gasification waste water by the uniform neutralization of three kinds of waste water to sulfur recovery subsider
Alkalescent；
(3) vaporizing system pulpifier feed trough will be delivered to water pump in alkalescent, so as to reach the effect of three kinds of wastewater utilizations.
The technological merit of the present invention：
(1) it is that of avoiding first and directly utilizes produced equipment corrosion and pollution problem；
(2) the sewage disposal expense of waste water straightly discharging has been saved；
(3) gasification torch overflow launder and relevant device investment have been saved；
(4) pipeline that treatment tank is drained into outside waste water and relevant device investment have been saved；
(5) system fresh water consumption has been saved, with good operability and economy.
Brief description of the drawings
Fig. 1 is present invention process flow chart.
Embodiment
Case study on implementation 1
With 180,000 tons/year of Anhui somewhere coal water slurry gasification ammonia synthesis process, above-mentioned method for reclaiming waste water, single slurrying water are utilized
220,000 tons/year can be saved, by local fresh water and sewage discharge expenses standard, can be saved more than 800,000 yuan/year.
Case study on implementation 2
With 300,000 tons/year of Anhui somewhere coal water slurry gasification ammonia synthesis process, above-mentioned method for reclaiming waste water, single slurrying water are utilized
350,000 tons/year can be saved, by local fresh water and sewage discharge expenses standard, can be saved more than 1,300,000 yuan/year.
Case study on implementation 3
With 300,000 tons/year of Inner Mongol somewhere coal water slurry gasification methanol technics, above-mentioned method for reclaiming waste water, single slurrying water are utilized
350,000 tons/year can be saved, by local fresh water and sewage discharge expenses standard, can be saved more than 4,000,000 yuan/year.
After project reconstruction is implemented, it can significantly reduce equipment and auxiliary facility investment, the exhaust emission of device area peripheral edge
It will be obviously improved, long-period stable operation can be achieved in equipment and pipeline, and operability is high, can also obtain preferably environmental protection and warp
Ji benefit.
Claims (5)
1. a kind of method of ammonia synthesis process wastewater utilization, it is characterised in that using torch water sealed tank static pressure difference that alkalescence is useless
Liquid is fed directly to sulfur recovery subsider, is re-introduced into partial alkaline gasification waste water, and mixed liquor is adjusted into PH in weak by acid-base neutralization
Alkalescence, is then pumped into vaporizing system pulpifier feed trough, reaches the effect of three kinds of wastewater utilizations.
2. the method for ammonia synthesis process wastewater utilization as described in claim 1, it is characterised in that：It is quiet using torch water sealed tank
Alkaline waste liquor is fed directly to sulfur recovery subsider by pressure difference.
3. the method for ammonia synthesis process wastewater utilization as described in claim 1, it is characterised in that：Pass through the equal of three kinds of waste water
Even neutralize mixed liquor regulation PH is in alkalescent.
4. the method for ammonia synthesis process wastewater utilization as described in claim 1, it is characterised in that：Using sulfur recovery waste water with
With regulation PH in alkalescent in alkaline waste liquor.
5. the method for ammonia synthesis process wastewater utilization as described in claim 1, it is characterised in that：Weakly alkaline solution is pumped into
In vaporizing system pulpifier feed trough.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710664177.5A CN107265601A (en) | 2017-08-02 | 2017-08-02 | A kind of method of ammonia synthesis process wastewater utilization |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710664177.5A CN107265601A (en) | 2017-08-02 | 2017-08-02 | A kind of method of ammonia synthesis process wastewater utilization |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107265601A true CN107265601A (en) | 2017-10-20 |
Family
ID=60076645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710664177.5A Pending CN107265601A (en) | 2017-08-02 | 2017-08-02 | A kind of method of ammonia synthesis process wastewater utilization |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107265601A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115321708A (en) * | 2022-08-15 | 2022-11-11 | 安徽理工大学 | Comprehensive utilization method of acid-base wastewater in coal chemical production process |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101245198A (en) * | 2008-03-13 | 2008-08-20 | 常州市美伦钛业有限公司 | Coated titanium dioxide and manufacture method thereof |
| CN103011373A (en) * | 2012-11-08 | 2013-04-03 | 内蒙古伊泰煤制油有限责任公司 | System and method of recycling fischer-trosch synthesis waste water in indirect coal liquefaction production |
-
2017
- 2017-08-02 CN CN201710664177.5A patent/CN107265601A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101245198A (en) * | 2008-03-13 | 2008-08-20 | 常州市美伦钛业有限公司 | Coated titanium dioxide and manufacture method thereof |
| CN103011373A (en) * | 2012-11-08 | 2013-04-03 | 内蒙古伊泰煤制油有限责任公司 | System and method of recycling fischer-trosch synthesis waste water in indirect coal liquefaction production |
Non-Patent Citations (2)
| Title |
|---|
| 王建兵，等: "《化工高浓度有机废水处理技术及工程实例》", 31 July 2015, 冶金工业出版社 * |
| 王晓涛，等: "煤化工生产过程火炬液封废水污染源分析及综合治理措施", 《化学工程与设备》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115321708A (en) * | 2022-08-15 | 2022-11-11 | 安徽理工大学 | Comprehensive utilization method of acid-base wastewater in coal chemical production process |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204625440U (en) | Domestic waste Leachate site zero-discharge treatment system | |
| CN101381156B (en) | Sewage disposal system combining membrane bioreactor and phosphorus recovery and processing method | |
| CN108996865B (en) | Pretreatment method and device for biogas production from sludge | |
| CN207330633U (en) | A kind of utilization system of high-ammonia nitrogen low C OD waste water | |
| CN205473190U (en) | Pig slaughtering and meat processing waste water reduce discharging regeneration system | |
| CN101863583A (en) | Technology for treating piggery wastewater by methane tank, biofilm reactor and artificial wetland | |
| CN104261561A (en) | Sequencing batch reactor activated sludge process (SBR) with low yield of sludge and low energy consumption | |
| CN106350445A (en) | Membrane contactor-based anaerobic digestive treatment system for side-flow recovery of ammonia nitrogen | |
| CN204385021U (en) | A kind of system processing waste water of heat-engine plant | |
| KR100903062B1 (en) | Processing unit for organic waste materials and method thereof | |
| CN107265601A (en) | A kind of method of ammonia synthesis process wastewater utilization | |
| CN202449962U (en) | System for treating high-salinity wastewater from chemical industry | |
| CN109231684B (en) | Treatment method and system for purifying phosphogypsum storage yard penetrating fluid | |
| KR101018636B1 (en) | Sewage and wastewater phosphorus removal system and method | |
| KR100750502B1 (en) | Organic livestock sewage treatment apparatus and organic livestock sewage treatment method | |
| CN106007235A (en) | Method for efficiently treating plant protein wastewater | |
| CN109809630A (en) | A method of multi-pollutant in collaboration low consumption removal nitrogenous fertilizer waste water | |
| CN213739038U (en) | System for sludge and waste water are dealt with in coordination with sewage plant in thermal power plant and city | |
| CN104230127A (en) | Process for biogas preparation with reconstituted tobacco waste water treatment | |
| Dvorak et al. | Commercial Demonstration of Nutrient Recovery of Ammonium Sulfate and Phosphorous Rich Fines From AD Effluent | |
| CN107721111A (en) | A kind of system and method for mud decrement processing | |
| CN103964628A (en) | Method for carrying out denitrogenation treatment on nitrocellulose acid water by adopting refined cotton black liquid as carbon source | |
| CN102674602A (en) | Mobile integrated sludge anaerobic acidification liquid denitrification and dephosphorization treatment device | |
| CN103214091A (en) | Fountainhead sludge reduction process of backflow sludge alkali treatment acidifying | |
| CN105645673A (en) | Device and method for treating livestock and poultry breeding wastewater |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20171020 |
|
| WD01 | Invention patent application deemed withdrawn after publication |