CN103910469A - Treatment process of brine wastewater generated in food processing - Google Patents
Treatment process of brine wastewater generated in food processing Download PDFInfo
- Publication number
- CN103910469A CN103910469A CN201410128962.5A CN201410128962A CN103910469A CN 103910469 A CN103910469 A CN 103910469A CN 201410128962 A CN201410128962 A CN 201410128962A CN 103910469 A CN103910469 A CN 103910469A
- Authority
- CN
- China
- Prior art keywords
- tank
- waste water
- sub
- biological tank
- water
- 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
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The invention relates to a wastewater treatment process, and in particular relates to a treatment process of brine wastewater generated in food processing. The treatment process sequentially comprises the following steps: (1) carrying out preliminary filtration on wastewater by a grid collecting tank, and entering the waste water to a regulating pond; (2) adding NaOH solution to the regulating pond by a dosing tank to adjust the pH value of waste water to be 6.8-7.2; (3) removing suspended matters with diameters more than 0.5mu m in wastewater by a microfiltration separator, and then entering the wastewater to an anaerobic aeration basin; (4) entering the wastewater treated by the anaerobic aeration basin to a plug flow type biological tank; (5) entering the wastewater to an aerobic tank from the final sub biological tank, and discharging the treated wastewater. The treatment process of the brine wastewater generated in food processing has the advantages of simple process, low use cost, small sludge discharge amount, good biodegradability and stable treatment effect.
Description
Technical field
The present invention relates to a kind for the treatment of process of waste water.
Background technology
The waste water that food-processing produces is high salinity waste water, and general saltiness is all more than 6%, and in waste water, CODcr is not less than 7000mg/L, and BOD5 is not less than 3500mg/L, and suspended substance is greater than 500mg/L, and water quality does not meet integrated wastewater discharge standard, can not directly discharge.The treatment process of the brine waste that existing food-processing produces is as follows: brine waste enters equalizing tank through grid water collecting basin, regulating pondage and water quality, then gravity flow enter iron-carbon micro-electrolysis pond carry out redox reaction remove organism, enter inclined tube coagulation basin by waste water lifting pump and carry out coagulation, add coagulating agent to inclined tube coagulation basin; The water outlet of inclined tube coagulation basin enters the first aerobic aeration pond adsorption and oxidation and removes organism, and activity sludge reflux water outlet is in the first heavy pond precipitation, activity sludge reflux the first aerobic aeration pond; The first sinking pool effluent enters the anaerobic pond acidifying that is hydrolyzed, and hangs filler in pond, and the waste water after acidication enters the second Aerobic Pond and carries out aerobic biochemical reaction; The second Aerobic Pond water outlet enters the second settling tank, and precipitating sludge partial reflux is to the second Aerobic Pond, and the second sinking pool effluent gravity flow enters coagulative precipitation tank, adds coagulating agent to coagulative precipitation tank, further removes pollutent, then receives tube drainage.The deficiency that the waster water process that existing food-processing produces exists is: 1, in treating processes, need to drop into a large amount of coagulating agent, not only use cost is high, and has produced the materials such as a large amount of mud, and environment is exerted an influence; 2, the waste water COD cr at water purification place and salinity are unstable can affect the effect of processing; 3, complex treatment process, completes the required floor space of whole treatment process large, by 100m
3/ d flow, its floor space need to be used 10m*43m.
Summary of the invention
The deficiency existing in order to solve the treatment process of the brine waste that above-mentioned existing food-processing produces, the object of the invention is open a kind of technique simple, biodegradability is good, and use cost is low, the treatment process of the brine waste that the food-processing that treatment effect is stable and sludge discharge is few produces.
In order to realize above-mentioned object, the present invention has adopted following technical scheme:
The treatment process of the brine waste that food-processing produces, comprise the following steps successively: brine waste and sanitary sewage are mixed into the waste water of salinity between 4%-6% by (1), waste water enters equalizing tank, the suspended substance in grid water collecting basin filtering waste water more than diameter 2mm after filtering by grid water collecting basin is preliminary, (2) in equalizing tank, add NAOH solution to regulate the pH value of waste water to 6.8-7.2 by dosing tank, (3) remove suspended substance more than diameter 0.5 μ m in waste water by micro-rate separating machine, then enter anaerobism aeration tank, be provided with filtration fibrous nodules in anaerobism aeration tank, waste water residence time in anaerobism aeration tank is 300-400 minute, (4) waste water of processing through anaerobism aeration tank enters pulling flow type biological tank, the sub-biological tank that pulling flow type biological tank is communicated with successively by 4-8 front and back forms, in every sub-biological tank, be equipped with semi soft packing, in first sub-biological tank, connect and increase air pump and pulse water tank, concentration of oxygen gas in first sub-biological tank is at 0.9-1.1lmg/L, concentration of oxygen gas in second sub-biological tank is at 0.65-0.75lmg/L, concentration of oxygen gas in every sub-biological tank reduces 0.08-0.12mg/L with respect to last sub-biological tank concentration of oxygen gas backward, the intermittent type shockwave that pulse water tank produces promotes the water flow in pulling flow type biological tank, (5) waste water enters Aerobic Pond by last sub-biological tank, in Aerobic Pond, the remaining organism of waste water more than 97% is small molecules state material, to the waste water supplemental oxygen in Aerobic Pond, make the dissolved oxygen in waste water be controlled at 0.5-1mg/L, Halophilic Bacterium is by part small molecules state material decomposition in waste water, and treated waste water discharges.
As preferably, small molecules state material mainly comprises amino acid and glucose; Halophilic Bacterium is by more than 80% small molecules state material decomposition in waste water.
As preferably, the sub-biological tank that pulling flow type biological tank is communicated with successively by 6 front and back forms, and result of use is best, and concrete manifestation is that CODcr clearance reaches 75%.
Adopt the treatment process of the brine waste of the food-processing generation of technique scheme, brine waste and sanitary sewage are mixed into the waste water of salinity between 4%-6%, sneak into the saltiness of the reduction waste water that sanitary sewage not only can be suitable and can handle together the sanitary sewage in food-processing plant area, resource utilization is high simultaneously, suspended substance in grid water collecting basin filtering waste water more than diameter 2mm, prevents the obstruction of the parts such as subsequent pump, pipeline and valve, in equalizing tank, add NAOH solution to regulate the pH value of waste water to 6.8-7.2, so that follow-up discharge water meets the requirement of pH value by dosing tank, remove suspended substance more than diameter 0.5 μ m in waste water by micro-rate separating machine, suspended substance is mainly vegetable fibre and not clear suspended particle, waste water residence time in anaerobism aeration tank is 300-400 minute, waste water dissolved oxygen in anaerobism aeration tank reduces rapidly, anerobe starts to enliven, in water, macromolecular substance acidication under the effect by after anerobe acidication such as protein, fiber, sugar becomes the small-molecule substance such as amino acid, glucose, for the aerobic treatment in later stage ready, aerobic bacteria activity in pulling flow type biological tank in first sub-biological tank is the highest, the small-molecule substances such as amino acid in waste water are decomposed, the intermittent type shockwave producing by pulse water tank promotes waste water and flows, prevent the sewage backflow between different sub-biological tanks, due to the metabolic consumption of the microorganism in every sub-biological tank the oxygen in water, oxygen in water successively decreases one by one, anerobe and double oxygen bacterium activity increase one by one, the activity of aerobic bacteria is successively decreased one by one, thereby the acidication decomposition larger molecular organics that small organic molecule and anerobe are decomposed in the metabolism of aerobic bacteria in pulling flow type biological tank carries out jointly, the organic substance decomposing that this mode is dissolved in can waste water is more abundant, CODcr clearance has reached 71%, pulling flow type biological tank has reduced salinity in the short period of time and has changed the impact to biological section, owing to being that its flow pattern is to pass through intermittent loading, give sufficient mixing time in pulling flow type biological tank, reduce salinity and changed the impact on Treatment Stability, waste water enters Aerobic Pond by last sub-biological tank, dissolved oxygen in waste water is controlled at 0.5-1mg/L, aerobic bacteria starts to enliven, and Halophilic Bacterium, by part small molecules state material decomposition in waste water, makes water quality reach directly the outwards integrated wastewater discharge standard of discharge.In sum, the advantage of the treatment process of the brine waste that this food-processing produces is that technique is simple, and use cost is low, and sludge discharge is few, and biodegradability is good, and treatment effect is stable.
Embodiment
Below in conjunction with embodiment, this patent is described in detail.
Embodiment 1
The treatment process of the brine waste that food-processing produces, comprise the following steps successively: brine waste and sanitary sewage are mixed into the waste water of salinity in 5% left and right by (1), waste water enters equalizing tank after filtering by grid water collecting basin is preliminary, suspended substance in grid water collecting basin filtering waste water more than diameter 2mm, prevents the obstruction of the parts such as subsequent pump, pipeline and valve, (2) by dosing tank to adding in equalizing tank NAOH solution to regulate pH value to 7 left and right of waste water, so that follow-up discharge water meets the requirement of pH value, (3) waste water is promoted and is entered micro-rate separating machine by pump, remove suspended substance more than diameter 0.5 μ m in waste water by micro-rate separating machine, suspended substance is mainly vegetable fibre and not clear suspended particle, its residue is discharged outward transport through mummification groove, then enter anaerobism aeration tank, in anaerobism aeration tank, be provided with filtration fibrous nodules, waste water residence time in anaerobism aeration tank is 400 minutes, waste water dissolved oxygen in anaerobism aeration tank reduces rapidly, anerobe starts to enliven, protein in water, fiber, the macromolecular substance such as sugar acidication under the effect by after anerobe acidication becomes amino acid, the small-molecule substances such as glucose, for the aerobic treatment in later stage ready, (4) waste water of processing through anaerobism aeration tank enters pulling flow type biological tank, the sub-biological tank that pulling flow type biological tank is communicated with successively by 6 front and back forms, in every sub-biological tank, be equipped with semi soft packing, in first sub-biological tank, connect and increase air pump and pulse water tank, concentration of oxygen gas in first sub-biological tank is in 1lmg/L left and right, concentration of oxygen gas in second sub-biological tank is in 0.7lmg/L left and right, concentration of oxygen gas in the 3rd sub-biological tank is in 0.6lmg/L left and right, concentration of oxygen gas in the 4th sub-biological tank is in 0.5lmg/L left and right, concentration of oxygen gas in the 5th sub-biological tank is in 0.4lmg/L left and right, concentration of oxygen gas in last sub-biological tank is in 0.3lmg/L left and right, water in the intermittent type shockwave promotion pulling flow type biological tank that pulse water tank produces is from first sub-biological tank toward last sub-biological tank sequential flowing successively, the intermittent type shockwave producing by pulse water tank promotes waste water and flows, prevent the sewage backflow between different sub-biological tanks, due to the metabolic consumption of the microorganism in every sub-biological tank the oxygen in water, oxygen in water successively decreases one by one, anerobe and double oxygen bacterium activity increase one by one, the activity of aerobic bacteria is successively decreased one by one, thereby the acidication decomposition larger molecular organics that small organic molecule and anerobe are decomposed in the metabolism of aerobic bacteria in pulling flow type biological tank carries out jointly, the organic substance decomposing that this mode is dissolved in can waste water is more abundant, CODcr clearance reaches 71%, pulling flow type biological tank has reduced salinity in the short period of time and has changed the impact to biological section, if brine waste salinity raises or the reduction of sanitary sewage salinity in the short period of time, in a traditional way salinity sharply variation can make the salinity of certain processing section also sharply change intrasystem microorganisms great impact, and the pulling flow type biological tank flow pattern of this patent is to pass through intermittent loading, give sufficient mixing time in pulling flow type biological tank, reduce salinity and changed the impact on Treatment Stability, (5) waste water enters Aerobic Pond by last sub-biological tank, in Aerobic Pond, the remaining organism of waste water more than 97% is small molecules state material, to the waste water supplemental oxygen in Aerobic Pond, make the dissolved oxygen in waste water be controlled at 0.5-1mg/L, now aerobic bacteria starts to enliven, Halophilic Bacterium is by part small molecules state material decomposition in waste water, small molecules state material is mainly amino acid and glucose, Halophilic Bacterium is by more than 80% small molecules state material decomposition in waste water, treated waste water is by discharging from stream mode, the water quality of discharging reaches " integrated wastewater discharge standard " GB8978-96 grade III Standard.
Before processing, the technical indicator of water quality is as follows:
The treatment process of pressing embodiment 1 process after the technical indicator of water quality as follows:
Embodiment 2
The treatment process of the brine waste that food-processing produces, comprise the following steps successively: brine waste and sanitary sewage are mixed into the waste water of salinity in 5% left and right by (1), waste water enters equalizing tank, the suspended substance in grid water collecting basin filtering waste water more than diameter 2mm after filtering by grid water collecting basin is preliminary, (2) in equalizing tank, add NAOH solution to regulate pH value to 7 left and right of waste water by dosing tank, (3) remove suspended substance more than diameter 0.5 μ m in waste water by micro-rate separating machine, then enter anaerobism aeration tank, be provided with filtration fibrous nodules in anaerobism aeration tank, waste water residence time in anaerobism aeration tank is 300 minutes, (4) waste water of processing through anaerobism aeration tank enters pulling flow type biological tank, the sub-biological tank that pulling flow type biological tank is communicated with successively by 5 front and back forms, in every sub-biological tank, be equipped with semi soft packing, in first sub-biological tank, connect and increase air pump and pulse water tank, concentration of oxygen gas in first sub-biological tank is in 1lmg/L left and right, concentration of oxygen gas in second sub-biological tank is in 0.65lmg/L left and right, concentration of oxygen gas in the 3rd sub-biological tank is in 0.55lmg/L left and right, concentration of oxygen gas in the 4th sub-biological tank is in 0.45lmg/L left and right, concentration of oxygen gas in last sub-biological tank is in 0.35lmg/L left and right, water in the intermittent type shockwave promotion pulling flow type biological tank that pulse water tank produces is from first sub-biological tank toward last sub-biological tank sequential flowing successively, (5) waste water enters Aerobic Pond by last sub-biological tank, in Aerobic Pond, the remaining organism of waste water more than 97% is small molecules state material, to the waste water supplemental oxygen in Aerobic Pond, make the dissolved oxygen in waste water be controlled at 0.5-1mg/L, now aerobic bacteria starts to enliven, Halophilic Bacterium is by part small molecules state material decomposition in waste water, small molecules state material is mainly amino acid and glucose, Halophilic Bacterium is by more than 80% small molecules state material decomposition in waste water, treated waste water is by discharging from stream mode, the water quality of discharging reaches " integrated wastewater discharge standard " GB8978-96 grade III Standard.
Before processing, the technical indicator of water quality is as follows:
The treatment process of pressing embodiment 2 process after the technical indicator of water quality as follows:
Above-described embodiment is only preferably embodiment of this patent, for example waste water in anaerobism aeration tank the residence time between 300-400 minute, concentration of oxygen gas in first sub-biological tank is at 0.9-1.1lmg/L, concentration of oxygen gas in second sub-biological tank is at 0.65-0.75lmg/L, and the concentration of oxygen gas in every sub-biological tank all can with respect to last sub-biological tank concentration of oxygen gas reduction 0.08-0.12mg/L backward.The sub-biological tank that pulling flow type biological tank is communicated with successively by 4-8 front and back forms, wherein 6 result of use the bests, and CODcr clearance at least can reach 75%.
Claims (3)
1. the treatment process of the brine waste that food-processing produces, it is characterized in that comprising the following steps successively: brine waste and sanitary sewage are mixed into the waste water of salinity between 4%-6% by (1), waste water enters equalizing tank, the suspended substance in grid water collecting basin filtering waste water more than diameter 2mm after filtering by grid water collecting basin is preliminary, (2) in equalizing tank, add NAOH solution to regulate the pH value of waste water to 6.8-7.2 by dosing tank, (3) remove suspended substance more than diameter 0.5 μ m in waste water by micro-rate separating machine, then enter anaerobism aeration tank, be provided with filtration fibrous nodules in anaerobism aeration tank, waste water residence time in anaerobism aeration tank is 300-400 minute, (4) waste water of processing through anaerobism aeration tank enters pulling flow type biological tank, the sub-biological tank that pulling flow type biological tank is communicated with successively by 4-8 front and back forms, in every sub-biological tank, be equipped with semi soft packing, in first sub-biological tank, connect and increase air pump and pulse water tank, concentration of oxygen gas in first sub-biological tank is at 0.9-1.1lmg/L, concentration of oxygen gas in second sub-biological tank is at 0.65-0.75lmg/L, concentration of oxygen gas in every sub-biological tank reduces 0.08-0.12mg/L with respect to last sub-biological tank concentration of oxygen gas backward, the intermittent type shockwave that pulse water tank produces promotes the water flow in pulling flow type biological tank, (5) waste water enters Aerobic Pond by last sub-biological tank, in Aerobic Pond, the remaining organism of waste water more than 97% is small molecules state material, to the waste water supplemental oxygen in Aerobic Pond, make the dissolved oxygen in waste water be controlled at 0.5-1mg/L, Halophilic Bacterium is by part small molecules state material decomposition in waste water, and treated waste water discharges.
2. the treatment process of the brine waste that food-processing according to claim 1 produces, is characterized in that small molecules state material mainly comprises amino acid and glucose; Halophilic Bacterium is by more than 80% small molecules state material decomposition in waste water.
3. the treatment process of the brine waste that food-processing according to claim 1 produces, is characterized in that the sub-biological tank that pulling flow type biological tank is communicated with successively by 6 front and back forms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410128962.5A CN103910469B (en) | 2014-04-01 | 2014-04-01 | The treatment process of the brine waste that food-processing produces |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410128962.5A CN103910469B (en) | 2014-04-01 | 2014-04-01 | The treatment process of the brine waste that food-processing produces |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103910469A true CN103910469A (en) | 2014-07-09 |
| CN103910469B CN103910469B (en) | 2015-08-12 |
Family
ID=51036525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410128962.5A Active CN103910469B (en) | 2014-04-01 | 2014-04-01 | The treatment process of the brine waste that food-processing produces |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103910469B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105293831A (en) * | 2015-11-20 | 2016-02-03 | 潜江永安药业股份有限公司 | Processing technology of taurine production sewage |
| CN105800887A (en) * | 2016-05-24 | 2016-07-27 | 江苏泰利达新材料股份有限公司 | Method for treating CMC waste water |
| CN106542691A (en) * | 2015-09-17 | 2017-03-29 | 哈尔滨市金京锅炉有限公司 | It is a kind of to be used for food industrial wastewater processing meanss |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101104542A (en) * | 2006-09-21 | 2008-01-16 | 浙江蜜蜂集团有限公司 | Method for treating monosodium glutamate waste water by concentration biochemical process |
| KR100856442B1 (en) * | 2008-04-17 | 2008-09-04 | 임찬호 | Plug flow bioreactor with micro bubble for treatment of wastewater |
| CN101805101A (en) * | 2010-05-13 | 2010-08-18 | 北京工商大学 | Aerobic treatment method for high-salt monosodium glutamate wastewater |
| CN201873595U (en) * | 2010-11-18 | 2011-06-22 | 广州市浩蓝环保工程有限公司 | High-salt and high-organic matter chemical sewage treatment system |
-
2014
- 2014-04-01 CN CN201410128962.5A patent/CN103910469B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101104542A (en) * | 2006-09-21 | 2008-01-16 | 浙江蜜蜂集团有限公司 | Method for treating monosodium glutamate waste water by concentration biochemical process |
| KR100856442B1 (en) * | 2008-04-17 | 2008-09-04 | 임찬호 | Plug flow bioreactor with micro bubble for treatment of wastewater |
| CN101805101A (en) * | 2010-05-13 | 2010-08-18 | 北京工商大学 | Aerobic treatment method for high-salt monosodium glutamate wastewater |
| CN201873595U (en) * | 2010-11-18 | 2011-06-22 | 广州市浩蓝环保工程有限公司 | High-salt and high-organic matter chemical sewage treatment system |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106542691A (en) * | 2015-09-17 | 2017-03-29 | 哈尔滨市金京锅炉有限公司 | It is a kind of to be used for food industrial wastewater processing meanss |
| CN105293831A (en) * | 2015-11-20 | 2016-02-03 | 潜江永安药业股份有限公司 | Processing technology of taurine production sewage |
| CN105293831B (en) * | 2015-11-20 | 2019-11-15 | 潜江永安药业股份有限公司 | A kind of taurine production sewage treatment technique |
| CN105800887A (en) * | 2016-05-24 | 2016-07-27 | 江苏泰利达新材料股份有限公司 | Method for treating CMC waste water |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103910469B (en) | 2015-08-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202898159U (en) | Sewage treatment device | |
| CN101891336B (en) | System and method for leachate treatment in sanitary landfill | |
| CN107253798B (en) | Advanced treatment and reuse combined process for steel industrial wastewater | |
| CN104478175A (en) | Treatment system and method for biogas slurry produced from anaerobic fermentation of kitchen waste | |
| CN101219842A (en) | Technique and equipment for recycling leachate of garbage | |
| CN105693014A (en) | Sewage treatment system and sewage treatment method | |
| CN101468859A (en) | Advanced purification treatment system for high concentrated organic wastewater | |
| CN104671613B (en) | A kind for the treatment of process of percolate from garbage filling field | |
| CN106396270A (en) | High-concentration pharmaceutical wastewater treatment system and treatment method | |
| CN104591443B (en) | A kind of recycling equipment of aquaculture agricultural effluent | |
| CN104445691A (en) | Circulating powdered activated carbon and ultrafiltration combined water treatment system and application thereof | |
| CN105481174A (en) | Wastewater treatment system in rubber and synthetic plastic industry | |
| CN103613254A (en) | Method for deep treatment of refractory organic wastewater of sewage treatment plant in fine chemical industry park | |
| CN104710077A (en) | Treatment system and treatment method of synthetic rubber wastewater | |
| CN103910469B (en) | The treatment process of the brine waste that food-processing produces | |
| CN104071952B (en) | A kind of breeding wastewater biochemical film processing method | |
| CN111892257A (en) | Aluminum product production wastewater treatment system and treatment process thereof | |
| CN210620525U (en) | Water-fertilizer co-production device for breeding manure | |
| CN205590517U (en) | Ozone - membrane bioreactor coking wastewater advanced treatment unit that pH control was adjusted | |
| CN103896444A (en) | Technology and system for processing wastewater generated during brown coal upgrading process | |
| CN106336082A (en) | Method for treating fungicide production waste water | |
| CN109534606A (en) | A kind of fermented pharmaceutical waste water treatment process | |
| CN212559892U (en) | Aluminum product waste water treatment system | |
| CN205892994U (en) | Zero release high concentration effluent disposal system | |
| CN205528260U (en) | Sewage treatment system |
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 | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhang Cuiai Inventor before: Shen Lezhong Inventor before: Luo Yunhan Inventor before: Shen Guanlin Inventor before: Shen Jianzhong |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20171208 Address after: 224400 Funing Yancheng City County, Jiangsu Province Town Industrial Zone No. 288 ditch Patentee after: JIANGSU RSK RECYCLING TECHNOLOGY EQUIPMENT HOLDING CO., LTD. Address before: 314515 downstairs Village of Gaoqiao Town, Tongxiang City, Jiaxing, Zhejiang Province, 6 buildings Patentee before: ZHEJIANG ZHONGCHUANG ENVIRONMENTAL PROTECTION EQUIPMENT CO., LTD. |