Changzhou Senshine Intelligent Technology, Co., Ltd. commissioned Suzhou Heju Environmental Technology Co., Ltd. to undertake the environmental impact assessment of the metal parts processing technology transformation project. In accordance with Huanfa [2006] No. 28 "Interim Measures for Public Participation in Environmental Impact Assessment" and other relevant regulations, in order to promote and standardize public participation in environmental impact assessment of the project, the relevant information of this project is hereby announced to all units and citizens as follows:

1. Contact person of the construction unit

Unit name: Changzhou Shengxiang Intelligent Technology Co., Ltd.

Contact: Zhu Xiaobin

Tel: 15061955588

E-Mail: shengxiang88507962@126.com

2. Contact person of EIA unit

Evaluation unit: Suzhou Heju Environmental Technology Co., Ltd.

Certificate Number: National Environmental Assessment Certificate No. 1998

Address: Room 1441, Building 1, No. 211 Zhujiang South Road, Mudu Town, Wuzhong District, Suzhou City

Contact: Gao Gong Email: gao160331@126.com

Tel: 0512-68136963

Zip code: 215100

3. Overview of the construction project

Project name: Metal parts processing technology transformation project

Construction unit: Changzhou Shengxiang Intelligent Technology Co., Ltd.

Project nature: technological transformation, expansion

Industry category: C3360 metal surface treatment and heat treatment processing

Project investment: 15 million yuan, environmental protection investment of 6.15 million yuan (accounting for 41% of the investment).

Location: Tongyao Road, Zhenxi Industrial Park, Henglin Town, Wujin District, Changzhou City, Jiangsu Province

Area: The project will be constructed in the existing factory area and no new land will be added. The existing factory area covers an area of ​​29,000m2 (about 43.5 mu), of which the green area is 550m2, and the greening rate is 1.9%;

Working hours: The whole factory adopts one-shift production, each shift is 10 hours, the annual production is 280 days, and the annual production hours are 2,800 hours.

Work quota: 120 people will be added, and the whole plant will have 260 employees after the completion of the technological transformation and expansion.

Table 4.1 2 List of product plans for construction projects

　　表 4.12 扩建完成后全厂表面处理产品方案

4. Main pollution prevention and control measures adopted by the project

(1) Atmospheric environmental protection measures

Organic waste gas: The organic waste gas of electrophoresis mainly comes from the volatilization of the electrophoresis tank. The spray waste gas comes from the spraying room and the drying room. The exhaust gas is mainly composed of volatile organic solvents. It is collected through the pipeline with a collection efficiency of 90%. The waste gas is composed of paint mist ( Larger particle size triphenyls) and combustible gaseous organic substances (such as triphenyl series and non-methane presidents, etc.), so the paint mist is removed by the pre-washing tower, and then the activated carbon adsorption process is used for emission ; Dust exhaust gas: The exhaust gas of this project originates from the grinding room and the electrostatic spraying room. The exhaust gas component is mainly dust. It is collected through the pipeline. The collection efficiency is 90%. The exhaust gas component is dust. Therefore, the pulse bag filter is used to remove the dust. Discharge; Acidic waste gas: waste gas comes from aluminum oxidation workshop and phosphating pretreatment workshop. The waste gas components are mainly hydrochloric acid mist and sulfuric acid mist. The collection efficiency is 90%. The waste gas components are hydrochloric acid mist and phosphoric acid gas. Therefore, the acid mist is removed by a scrubber and then discharged; Canteen exhaust gas: Canteen exhaust gas is mainly fuel combustion exhaust gas and oil fume; lampblack purifier is used to filter; after filtration, it passes through the canteen oil fume flue together with fuel combustion exhaust gas. emission.

(2) Water environmental protection measures

The drainage system of "rain and sewage diversion" and "clean turbidity diversion" is implemented in the plant area; the canteen wastewater is treated with grease traps and the domestic sewage is treated with septic tanks; each stream of wastewater is discharged into Henglin after being pretreated in the plant. The Zhenbei Sewage Treatment Plant has centralized treatment; the tail water will be discharged into the Beijing-Hangzhou Grand Canal after it reaches the standard.

The production workshop of the project implements the system of “cleaning sewage and separate flow and quality treatment”. The purified tail water is used as clean water. After being collected by the rainwater pipe network in the plant, it is connected to the municipal rainwater pipe network; the hydrochloric acid waste liquid is transported to the special waste water pipe network. Liquid collection tank, outbound treatment; sulfuric acid/phosphating/degreasing/chemical throwing waste liquid/closed waste liquid: the waste liquid is transported to the special waste liquid collection tank through the conveying pipe network, and enters the three-effect after passing through the neutralization pressure filter Evaporator treatment; a type of wastewater:

The dyeing and cleaning wastewater is stored in the collection box, and the effluent is transported by the corrosion-resistant chemical pump to the sequencing batch reaction sedimentation tank. First, the acid is adjusted to pH between 2-3 (the dosage is automatically controlled by the online PH meter), and then the XY adjustment is added. PH to 10-11 (the dosage is automatically controlled by the online PH meter), the phosphorus and the calcium substance in the wastewater are reacted to form fine calcification particles, and finally a decolorant is added to remove the color, the flocculant PAC and the auxiliary The coagulant PAM fully flocculates with the wastewater, and then settles at a standstill to settle and remove the flocs produced by the flocculation reaction. The supernatant effluent enters the first-class wastewater collection tank for treatment; closed cleaning wastewater \ phosphating cleaning wastewater \ chemical throwing wastewater pickling cleaning wastewater \ oxidation cleaning wastewater \ pretreatment dyeing wastewater: the wastewater is transported to a special purpose through a pipeline network In the collection tank, the effluent is transported by a corrosion-resistant chemical pump to the multi-stage reaction tank. First, a decomplexer is added to break the complex, and then an alkali is added to adjust the pH to between 7-8 (the dosing amount is automatically controlled by the online PH meter), The nickel ions react with the alkaline substances in the wastewater to form fine hydroxide particles, and then XY is added to adjust the pH to between 10-11 (the amount of addition is automatically controlled by the online PH meter), and the nickel ions and phosphorus are combined with the wastewater The calcium substance in the reaction produces fine calcification particles. Finally, the coagulant PAM is added to fully flocculate with the wastewater. After the multi-stage reaction, the effluent enters the inclined tube sedimentation tank, and the flocculants produced by the flocculation reaction are settled and removed. . The supernatant effluent flows into the callback tank by itself, and the acid solution is added to adjust the pH to between 7-8 (the acid solution is automatically controlled by the online PH meter), and the effluent flows into the intermediate tank by itself, and the water quality is uniform for subsequent treatment; Second-class wastewater: Degreasing cleaning wastewater is transported to a special grease trap through a pipeline network. After three-stage oil separation, the effluent flows into the second-class wastewater collection tank for treatment, and the oil slick is regularly salvaged; electrophoresis cleaning wastewater\dewaxing cleaning wastewater\ Degreasing wastewater after pretreatment: The wastewater is transported to a special collection tank through a pipeline network, and the effluent is transported to a neutralization tank by a corrosion-resistant chemical pump. First, alkali is added to adjust the PH value between 7 and 8 (the alkali is used by the online PH meter Automatically control the dosage). The function of the neutralization tank is to adjust the pH value, so that the acidic and alkaline substances and the wastewater can fully react. The pH adjustment adopts alkali. After the pH adjustment, various metal ions in the water react with the alkaline substances to form Fine particles can be precipitated and removed in the subsequent system; the effluent from the neutralization tank is lifted by a pump into the flocculation dosing reaction tank, and PAC, PAM and wastewater are added to fully flocculate the reaction tank. After the reaction, the effluent inclined pipe sedimentation tank will flocculate The flocs produced by the reaction are removed by sedimentation. The supernatant effluent flows into the discharge pool by itself, and the water quality is uniform and discharged up to the standard.

(3) Sound environmental protection measures

The main noise equipment of this project is motors, fans and air compressors; the main noise prevention measures adopted are: purchase low-noise equipment during equipment selection, air compressors are all arranged in the air compressor room, and install and reduce equipment when the equipment is fixed. Vibrate rubber pads, and do a good job in daily production equipment maintenance.

(4) Solid waste prevention and control measures

The project produced pickling waste acid (residue) HW17, waste acid HW17, phosphating residue HW17, degreasing and degreasing tank oil-water separation waste oil and waste residue HW17, meter adjustment tank residue HW17, electrophoresis fluid ultrafiltration residue HW12, dyeing liquid filter residue HW12, Alkali corrosion tank filter residue HW17, organic waste gas adsorption treatment waste activated carbon HW12, sewage station sludge HW12, various hazardous chemical waste packaging barrels HW49, paint residue HW12 contaminated with paint, waste labor insurance products HW12, are all included in hazardous waste management and entrusted to a qualified unit for centralized disposal .

General industrial solid waste storage yards shall be constructed, stored and comprehensively utilized in accordance with the requirements of the "General Industrial Solid Waste Storage and Disposal Pollution Control Standards" (GB15899-2001); hazardous waste storage yards shall be constructed in accordance with the "Hazardous Waste Storage Pollution Control Standards" (GB18597) -2001) and its amendments require construction, classified storage and centralized disposal.

(5) Groundwater pollution prevention and control measures

In order to prevent soil and groundwater pollution, this project adopts a variety of anti-seepage measures for the construction of the bottom of the sewage treatment facility. This project has anti-seepage measures on the ground involving hazardous chemical warehouses, temporary storage yards of hazardous wastes, and workshops where surface treatment lines are located. And wastewater diversion facilities, the following anti-seepage construction requirements are proposed and designated as key anti-seepage areas, and the rest of the plant area is regarded as general anti-seepage areas.

5. The possible impact of the construction project on the environment

(1) Atmospheric environmental impact

①After the project's emission of air pollutants is reduced, under normal emission conditions, it is predicted that the maximum landing concentration of organized and unorganized emission of air pollutants and the landing concentration in environmentally sensitive areas are less than their corresponding environmental quality hourly concentration 10% of the standard value is less than the requirements of the relevant environmental quality standards, has less impact on the surrounding atmospheric environment and sensitive targets, and will not change the functional level of the regional atmospheric environment.

②According to calculations, there is no need to set an atmospheric environmental protection distance for the unorganized discharge of air pollutants in this project, and set a 100m sanitation protection distance. There are currently no sensitive residential areas within the protection distance, and no new schools, hospitals, residents and other environmentally sensitive spots are allowed in the future.

(2) Water environmental impact

The project’s canteen wastewater is treated with grease traps, and domestic sewage is treated with septic tanks; each stream of wastewater is pretreated in the plant and discharged into the Henglin Town North Sewage Treatment Plant for centralized treatment. Due to the small amount of water, it will not treat the sewage. The impact of the treatment plant will not affect the standard treatment of the sewage treatment plant. Sewage is discharged after treatment up to the standard, which has little impact on the receiving water body of the Beijing-Hangzhou Canal, and the water quality function can maintain the status quo.

(3) Acoustic environmental impact

After effective sound insulation, vibration reduction, and noise reduction measures are taken for the production noise of the project, the contribution value of daytime noise at the boundary of the workshop and the plant boundary meets the Class 3 standard in the "Environmental Noise Emission Standard for Industrial Enterprise Plant Boundary" (GB12348-2008) The daytime limit requirements, the noise at the workshop boundary and the factory boundary can reach the standard emission; after superposing the environmental background value, the daytime noise impact value at the workshop boundary and the factory boundary meets the "Acoustic Environmental Quality Standard" (GB3096-2008) Category 3 standards require less impact on the surrounding acoustic environment and will not change the functional level of the regional acoustic environment.

(4) Solid waste impact

After the project has done a good job in the classified collection, storage, and entrusted disposal of hazardous wastes and related pollution prevention, as well as the comprehensive utilization of general industrial solid wastes, all types of solid wastes are reasonably disposed of, with a disposal rate of 100%, and they are not directly discharged to the environment. Causes secondary pollution and has no direct impact on the surrounding environment.

(5) Influence of soil and groundwater

The project has made corresponding preventive measures for various pollution sources that may pollute the soil and groundwater, which can effectively reduce the degree of soil and groundwater pollution during the project operation period. After implementing measures such as anti-corrosion, anti-seepage, and anti-leakage, it will not have a significant impact on the regional soil and groundwater, and will not change the current functions of the regional soil and groundwater.

6. ​​Environmental impact assessment conclusions proposed in the environmental impact report

(1) The construction of this project conforms to the relevant national and local industrial policies.

(2) The site selection of this project meets the relevant planning requirements, and the site selection is reasonable.

(3) Pollution prevention and control measures are feasible, and pollutants can be discharged up to the standard.

(4) Pollutant discharge can maintain the status quo of environmental quality.

(5) Under the circumstances of strengthening monitoring, establishing risk prevention measures, and formulating practical emergency plans, the environmental risks of this project are acceptable.

(6) The environmental and economic gains and losses have a positive effect, and the project can get public support.

Therefore, this project is environmentally feasible after earnestly implementing the environmental protection measures proposed in the report.

7. Main items for public comment

(1) According to your knowledge, what aspects of the local environment (surface water, air, sound, soil, groundwater, etc.) that the project thinks may cause pollution hazards/impacts and extent;

(2) What are your specific suggestions and requirements for the project in terms of environmental protection;

(3) What are your specific suggestions and requirements for the environmental protection authority when approving the project;

(4) From the perspective of environmental protection, what is your attitude (support or opposition) to the construction of the project, and briefly explain the reasons.

The scope of soliciting public opinions includes representatives of citizens, legal persons or other organizations affected by this project.

If the public needs relevant supplementary information and feedback on the project's opinions and suggestions, they can contact the construction unit or environmental assessment unit by email, letter or fax. Thank you for your participation and support.

This announcement will be kept for ten working days from the date of posting.