1、 Name and Overview of the Construction Project
Project Name: Shandong Daye High Performance Tire Bead Steel Wire Production Capacity Expansion and Technological Enhancement Transformation Project
Construction unit: Shandong Daye Co., Ltd
Construction location: The project is located in the existing North and West factory areas of Shandong Daye Co., Ltd. in Xinxing Town Industrial Park, Zhucheng City. The North factory area is adjacent to Xingchuang Road to the north, Xinxing Road to the south, Yongxing Road to the east, Shandong Shangshang Home Furnishings Company and Zhucheng Kexin Branch of Shandong Wuzhou Electric Co., Ltd. to the west; Xichang District is bordered by Xinxing Road to the north, Gaoxin Road to the south, Xin'an Street to the east, and Xingwang Road across farmland to the east.
Construction content and scale: The Shandong Daye High Performance Tire Wire Production Capacity Expansion and Technology Improvement Project mainly involves the technological transformation and expansion of the company's chemical plating project, involving two chemical plating projects: the North Factory Tire Wire Project and the West Factory Tire Wire Project. The technological transformation and expansion contents of the two projects are as follows:
1、 Optimize the wastewater treatment system for chemical plating projects
1. Integrate chemical plating wastewater from two projects
Construct a new heavy metal wastewater treatment system (7 #, 100m3/d) to treat the heavy metal wastewater generated by the company's two chemical plating projects; The RO and MVR devices in the existing 1 # comprehensive sewage treatment system in the northern factory area have been dismantled and will no longer be used (renamed as the 1 # heavy metal free wastewater treatment system after dismantling). They are only used to treat heavy metal free wastewater from the tire bead wire project in the northern factory area; The 2 # heavy metal containing wastewater treatment system and the 4 # heavy metal free wastewater treatment system in the southern factory area will no longer treat the production wastewater of the tire bead steel wire project in the western factory area.
2. Optimize processing technology
The heavy metal wastewater from the tire bead wire project in the northern factory area is treated and reused without being discharged; After the treatment of heavy metal free wastewater, it is discharged through the comprehensive wastewater discharge outlet in the northern factory area and no longer reused, which can avoid the impact on product quality due to reuse of water and reduce the cost of wastewater treatment.
2、 Expansion and renovation of the tire bead steel wire project in the northern factory area
1. Expansion of production capacity from 200000 tons/year to 300000 tons/year
Eliminate some old equipment and purchase 249 sets of equipment such as direct wire drawing machines, centralized pretreatment production lines, reversing machines, copper plating production lines, and environmental protection equipment. After expansion, it can form a production capacity of 300000 tons per year.
2. Optimization of wastewater treatment methods
According to the principle of "classified collection and quality treatment", heavy metal containing wastewater and non heavy metal containing wastewater are collected separately and enter the newly built North Plant Area 7 # heavy metal containing wastewater treatment system (100m3/d) and the existing North Plant Area 1 # non heavy metal containing wastewater treatment system.
3. Changes in the destination of wastewater
The approval for the acceptance of the tire bead steel wire project in the northern factory area requires that all wastewater be reused and not discharged. However, since operation, it has been found that the quality of the reused water has an impact on product quality. To ensure product quality, based on optimizing the wastewater treatment method, the wastewater containing heavy metals is reused and not discharged. The wastewater without heavy metals is discharged through the comprehensive wastewater discharge outlet in the northern factory area after meeting the standard.
4. Changes in raw materials for oil coating process
To improve product performance, the raw material used in the oil coating process has been changed from mineral oil to a more superior oil coating agent.
5. Source reduction of waste hydrochloric acid production in chemical plating projects
In order to improve the utilization rate of raw materials and reduce the amount of hazardous waste generated from the source, a new waste acid recycling device has been installed. The waste hydrochloric acid generated from the centralized pretreatment line, heat treatment line, and copper plating pickling process of the tire bead steel wire project in the northern factory area will be regenerated through the roasting process and reused in the production line. At the same time, a portion of the pickling wastewater can be utilized to reduce the amount of pickling wastewater generated.
3、 Technical renovation content of tire bead steel wire project in Xichang District
1. Optimization of wastewater treatment methods
According to the principle of "classified collection and quality treatment", heavy metal containing wastewater and non heavy metal containing wastewater are collected separately and enter the newly built heavy metal containing wastewater treatment system (7 #, 100m3/d) and the existing 1 # non heavy metal containing wastewater treatment system in the northern factory area.
2. Changes in raw materials for oil coating process
To improve product performance, the raw material used in the oil coating process has been changed from mineral oil to a more superior oil coating agent.
3. Increase in wastewater volume
The water washing wastewater from the phosphating process of the original environmental impact assessment centralized pretreatment line and heat treatment line flows back to the phosphating tank without being discharged. Due to process optimization, the discharge of phosphating water washing wastewater has been increased. The phosphating water washing wastewater contains zinc and is classified as heavy metal wastewater.
After copper plating, there are three levels of water washing and hot water washing processes. The original environmental impact assessment collected all three levels of water washing wastewater as heavy metal containing wastewater. In this technological transformation, only the first level of water washing wastewater for copper plating is collected as heavy metal containing wastewater, while the remaining two levels of water washing and hot water washing wastewater are collected as non heavy metal containing wastewater.
In order to meet product quality requirements, the water consumption of the centralized pretreatment line, heat treatment line, and copper plating wire washing process has increased, resulting in an increase in the amount of heavy metal containing wastewater and non heavy metal containing wastewater.
4. Changes in pickling raw materials
The original environmental impact assessment used sulfuric acid in the pickling process of copper plated wires. In order to meet product quality requirements, the type of acid used in the pickling process of copper plated wires has been changed to hydrochloric acid.
2、 Name and contact information of the construction unit of the construction project
Construction unit: Shandong Daye Co., Ltd
Contact: Dou Xiaoxue
Phone: 13953622640
Email: sddyhbk2014@163.com
3、 The network link for the full text of the draft for soliciting opinions and the ways and channels to access the paper report
The public can access the full draft of the Environmental Impact Assessment Report for soliciting opinions through the following link, or visit Shandong Daye Co., Ltd. to view the paper report.
Full text link of the draft for soliciting opinions: https://pan.baidu.com/s/1UNCcwZob50KtwmVfN69X1w
Extraction code: vayb
4、 Public Opinion Form
Download link for public opinion form: https://pan.baidu.com/s/1UNCcwZob50KtwmVfN69X1w
Extraction code: vayb
5、 Public scope for soliciting opinions
The scope of this public opinion solicitation is the scope of the environmental impact assessment, which includes citizens, legal persons, and other organizations within a 5-kilometer rectangular area centered on the construction project site. Our company also encourages citizens, legal persons, and other organizations outside the scope of the environmental impact assessment to pay attention to the progress of this project and provide different opinions on the project construction.
6、 Ways and channels for submitting public opinion forms
The public can submit the completed public opinion form to our unit within the specified time through letters, faxes, emails, or other means provided by our unit, reflecting opinions and suggestions related to the environmental impact of the construction project.
When the public submits opinions, effective contact information should be provided. Encourage the public to submit opinions through real name registration and provide their permanent address.
The personal information submitted by the public shall not be used for purposes other than public participation in environmental impact assessments, and shall not be disclosed without the permission of the relevant rights holders of personal information. Except as otherwise provided by laws and regulations.
Deadline for soliciting public opinions: 10 working days from the date of public announcement.
Shandong Daye Co., Ltd
April 21, 2022
