Songtao Sanhe Manganese Industry Group Co., Ltd. 2022 First-Half Environmental Management Information Disclosure
Release time:2022-08-15
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I. Company Overview In 2004, Songtao Sanhe Manganese Industry Group Co., Ltd. completed and put into operation the first production facility, featuring a 20,000-ton-per-year electrolytic metallic manganese production line. In 2009, the company undertook an expansion and renovation project, launching the second production facility with a capacity of 30,000 tons/year. In October 2015, the company initiated a comprehensive upgrade and technological transformation project for its 50,000 t/a electrolytic metallic manganese production line. This project leveraged the existing capacities from the original first facility (20,000 t/a) and the second facility (30,000 t/a), phasing out the older 20,000 t/a metallic manganese production line at the first facility while expanding and upgrading the second facility to accommodate the full 50,000 t/a capacity. As a result, the company now operates four separate electrolytic metallic manganese production lines, each with a capacity of 12,500 t/a. The project covers a total area of 91,943 square meters, with a total investment of 213.955 million yuan. Environmental protection measures account for 8.13% of the total investment, amounting to 17.4 million yuan. II. Compliance and Regulatory Status 1. The 50,000 t/a electrolytic metallic manganese production line upgrade project was officially registered with the Songtao Miao Autonomous County Bureau of Industry and Commerce under Document No. [2015]7 issued on August 31, 2015. The project’s environmental impact assessment report was evaluated by the Guizhou Provincial Environmental Engineering Assessment Center and subsequently approved by the Guizhou Provincial Department of Ecology and Environment, receiving approval document No. [2016]23 in February 2016. Construction commenced in October 2015, followed by a trial run on December 7, 2016. Finally, on August 17, 2017, the project successfully obtained the Environmental Protection Acceptance Certificate for Completed Construction Projects (Registration No.: 520000-2017-114). 2. The company has secured a discharge permit (Certificate No.: 91520628755387186G002P). 3. On April 27, 2022, the company successfully passed the third-level Clean Production Audit conducted by the Guizhou Provincial Department of Ecology and Environment (Document No. [2022]16). III. Solid Waste and Hazardous Waste Management 1. As of the first half of 2022, the accumulated stockpile of manganese slag reached 98,896 tons. Additionally, 1,049.13 tons of anode slag were generated and have been sold to relevant ferroalloy plants for use as raw materials. 2. In 2021, waste mineral oil and laboratory waste liquids were properly handled by qualified disposal units. In the first half of 2022, the company received 253.27 kg of laboratory waste liquids and 489.56 kg of waste mineral oil, both of which were managed according to regulatory guidelines. IV. Operation and Management of Environmental Protection Equipment and Facilities 1. The ore stockpile area within the grinding workshop is equipped with rain shelters, dust control systems, and mist sprayers. Ore transportation is conducted via enclosed conveyor belts. The grinding process utilizes fully enclosed negative-pressure equipment, while dust generated from the crushing system and high-pressure roller mill grinding system is captured by two baghouse dust collectors. A single-machine dust collector is installed atop each material silo, achieving a dust removal efficiency of over 99.5%. 2. The chemical pulp preparation system is fitted with two sets of dust collection equipment, with collected dust being reused in the pulp-making process. The prepared solution is then transported through pipelines, preventing secondary pollution. Four acid mist treatment towers have been installed in the chemical leaching stage; after treatment, the exhaust gases are discharged through a 15-meter-high stack, meeting the Class II emission standards outlined in the "Comprehensive Emission Standards for Air Pollutants" (GB16297-1996). All dust collection, dust recovery, and acid mist treatment systems are operating smoothly. A containment dike has also been constructed around the chemical reaction tanks to prevent overflow of chemical solutions. The dike remains intact, with no signs of damage or leakage. 3. The electrolysis workshop features energy-efficient, environmentally friendly RPP polymer electrolytic cells mounted on elevated racks. The workshop floor has undergone specialized anti-seepage treatment using a three-layer coating combined with five layers of oil-based protection, ensuring complete impermeability without any cracks or leaks. Silent axial fans are installed throughout the workshop to facilitate air circulation and ventilation. 4. The filter press workshop employs advanced filtration equipment capable of reducing manganese slag moisture content to approximately 24%. The filtered manganese slag is conveyed via conveyor belts directly to the designated slag storage area, complying with the requirements specified in the environmental impact assessment. 5. Wastewater generated during production, along with leachate from the slag storage area and initial rainwater runoff, is entirely recycled for reuse in the plant’s water supply and solution systems. Domestic wastewater is collected, treated, and then routed through the municipal sewage network to the Songtao Economic Development Zone’s centralized wastewater treatment plant for further processing. V. Operation of Pollution Control Equipment and Facilities 1. The company operates a dedicated wastewater treatment station equipped with a 620-cubic-meter wastewater treatment tank, a 600-cubic-meter equalization tank, and two pressure filters with a combined filtration capacity of 13 cubic meters. The station can handle approximately 1,800 cubic meters of manganese-containing wastewater daily, with a maximum treatment capacity of 500 cubic meters per day. The facility is staffed by one station manager, one deputy manager, and 12 operational personnel. 2. An online monitoring system has been installed for both the slag storage area and key pollution sources across the factory premises. These systems are maintained and operated by Guizhou Jinhong Environmental Technology Co., Ltd., which ensures their smooth functioning. Additionally, the company has implemented a robust video surveillance system that is also operating effectively. 3. Two 2,500-cubic-meter rainwater collection tanks, two 2,500-cubic-meter equalization tanks, and two sets of emergency pumps have been set up, including a 1,000-cubic-meter accident emergency pool equipped with two pumps (one working, one standby). These systems ensure reliable transfer of emergency fluids either to the centralized accident emergency pool or back into the production cycle for reuse. 4. Acid, nitric acid, and ammonia storage tanks are all equipped with intact containment dikes, free from any leaks or damage. Emergency eyewash stations and shower facilities remain fully functional. 5. The slag storage area’s leachate collection tanks, as well as the emergency storage tanks for sulfuric acid, ammonia, and rainwater, are structurally sound and show no signs of damage. Auxiliary components such as valves, pumps, and pipelines are all in proper working order, with no evidence of cracks, drips, or leaks. 6. The manganese slag storage facility, along with its associated safety and environmental protection systems, is operating smoothly. Three groundwater monitoring wells have been established and are currently in regular use. 7. Cooling towers and cooling water circulation systems equipped with manganese sand filtration units are functioning normally, with no instances of coolant splashing or leakage observed during operation.The cooling circulation pool showed no signs of leakage. 8. An emergency supplies warehouse has been established, managed by dedicated personnel. It is fully equipped with appropriate emergency supplies and vehicles tailored to various rescue scenarios, ensuring a reliable supply of materials in case of accidents. VI. Pollution Prevention and Environmental Emergency Response Measures 1. An environmental management structure, including the Safety & Environmental Protection Department and a wastewater treatment plant, has been set up. Comprehensive environmental protection policies, operational procedures, and job-specific responsibilities have been implemented. 2. Quarterly monitoring of pollution sources, inlet and outlet points of culverts, water quality at monitoring wells, and river cross-sections is conducted by a qualified third-party testing service provider. Additionally, regular sampling and analysis of river sections are performed to effectively prevent and manage pollutants, enabling continuous improvements in environmental protection, management, remediation, and gap identification. Monitoring for the first and second quarters of 2022 has already been completed. 3. Dedicated staff conduct daily safety and environmental inspections, while monthly proactive reviews are carried out to identify potential hazards related to emergency response preparedness and risk mitigation measures for sudden environmental incidents. Detailed records are meticulously maintained for each inspection. 4. All departments and workshops that consume water are equipped with water meters. Daily, designated personnel monitor water usage across each workshop uniformly. Monthly assessments based on a predefined water consumption plan are conducted, rewarding conservation efforts and imposing penalties for excessive usage. 5. Comprehensive regulations and procedures governing slag storage management have been developed, along with detailed slag storage operation plans. A dedicated duty room has been established, and full-time slag storage managers oversee routine maintenance of all equipment, maintaining accurate operational logs and records. 6. Environmental emergency response plans for both the plant area and the slag storage facility have been rigorously prepared as required. In the first half of 2022, a successful drill was conducted specifically targeting potential environmental emergencies at the slag storage site. 7. During the flood season, specialized personnel are assigned to conduct regular safety inspections and maintain constant vigilance over the slag storage area, hazardous chemical storage zones, and production facilities. Any identified risks or hazards are promptly reported and addressed, ensuring uninterrupted company operations. **Songtao Sanhe Manganese Industry Group Co., Ltd.** **August 15, 2022**
I. Company Overview
In 2004, Songtao Sanhe Manganese Industry Group Co., Ltd. completed and put into operation the first 20,000-ton-per-year electrolytic metallic manganese production line at its first plant. In 2009, the company expanded and upgraded the facility, launching a second 30,000-ton-per-year electrolytic metallic manganese production line at its second plant.
Then, in October 2015, the company initiated a comprehensive technical upgrade project for its 50,000-ton-per-year electrolytic metallic manganese production line. This project involved repurposing the existing capacities from the original first plant (20,000 tons/year) and second plant (30,000 tons/year), phasing out the older 20,000-ton-per-year production line at the first plant, and expanding and upgrading the second plant's 30,000-ton-per-year line. As a result, the entire 50,000-ton-per-year production line was thoroughly modernized and relocated to the second plant.
Today, the facility comprises four separate electrolytic metallic manganese production lines, each with a capacity of 12,500 tons per year. The project covers an area of 91,943 square meters, with a total investment of 213.955 million yuan. Environmental protection measures account for 17.4 million yuan of the total investment, representing 8.13% of the overall budget.
II. Status of Procedure Completion
1. The comprehensive upgrade and technical renovation project for the 50,000 t/a electrolytic metallic manganese production line was filed with the Songtao Miao Autonomous County Bureau of Industry and Commerce (Songgongmao Planning [2015] No. 7, August 31, 2015). The project’s Environmental Impact Assessment Report was evaluated by the Guizhou Provincial Environmental Engineering Assessment Center and subsequently approved by the Guizhou Provincial Department of Environmental Protection (Approval No. Qianhuan Shen [2016] No. 23), as documented in Qianhuan Assessment Document No. 195 of 2015. Construction of the project commenced in October 2015, followed by a trial run on December 7, 2016. Finally, on August 17, 2017, the project successfully obtained the environmental protection acceptance filing for completion of construction (Filing No.: 520000-2017-114).
2. Has obtained a pollution discharge permit (Certificate No.: 91520628755387186G002P)
3. Passed the Level 3 Clean Production Audit on April 27, 2022 (Qianhuan Clean [2022] No. 16).
III. Management of Solid Waste and Hazardous Waste
1. In the first half of 2022, the accumulated stock of manganese slag entering the warehouse was 98,896 tons. The amount of anode slag generated was 1,049.13 tons, which is currently being sold to relevant ferroalloy plants for use as raw material.
2. In 2021, the waste mineral oil and laboratory waste liquids generated were handed over to qualified organizations for proper disposal. During the first half of 2022, the laboratory waste liquid received totaled 253.27 kg, while the waste mineral oil received amounted to 489.56 kg.
IV. Operation and Management of Environmental Protection Equipment and Facilities:
1. The ore stockpile area in the milling workshop is equipped with a canopy, dust-control measures, and a mist-spraying system. Ore transportation is carried out via enclosed conveyor belts. The milling process utilizes fully enclosed negative-pressure equipment, while dust generated by both the crushing system and the high-pressure roller mill grinding system is separately captured by two baghouse dust collectors. Additionally, a single-machine dust collector is installed atop each storage bin for further purification. Together, these systems achieve a dust removal efficiency of over 99.5%.
2. The compound pulping system is equipped with two sets of dust removal equipment, where collected dust is reused for pulping. The well-prepared pulp solution is then transported via pipelines, eliminating the risk of secondary contamination. Additionally, four acid mist treatment towers have been installed in the leaching process; after treatment meets the standards, the filtered air—now compliant with the "Comprehensive Emission Standards for Air Pollutants" [GB16297-1996], specifically the Level 2 criteria—is discharged through a 15-meter-high exhaust stack. Both the dust collection and acid mist treatment systems are operating smoothly.
The mixing tank is equipped with a containment dike to prevent chemical liquid overflow, and the dike shows no signs of damage or leakage.
3. The electrolysis workshop uses energy-saving and environmentally friendly high-molecular RPP electrolytic cells installed in an elevated setup. The floor is treated with a "three fabrics and five oils" method plus corrosion-resistant bricks to prevent leakage, with no damage or seepage observed. The workshop is also equipped with silent axial fans for air replacement and ventilation.
4. The filtration workshop is equipped with high-efficiency filtration equipment, achieving a moisture content of approximately 24% in the filtered manganese slag. The filtered slag is then conveyed via conveyor belt to the slag storage area, ensuring compliance with environmental impact assessment requirements.
5. Wastewater generated from production, leachate from the slag storage area, and initial rainwater are all recycled for use in the production water system and solution system. Domestic wastewater is collected, treated, and then discharged via the municipal network to the Songtao Economic Development Zone’s domestic wastewater treatment plant for further processing.
V. Operation Status of Pollution Control Equipment and Facilities
1. One wastewater treatment station equipped with a 620-cubic-meter wastewater treatment pond, a 600-cubic-meter capacity tank, and a filtration volume of 13 cubic meters. The station includes two filter presses along with supporting equipment. It can treat approximately 1,800 m³ of manganese-containing wastewater daily, while its standard-compliant treatment capacity is 500 m³ per day. The team consists of one station manager, one deputy manager, and 12 staff members.
2. One set of slag storage area online monitoring system and one set of plant-wide pollution source online monitoring system have been installed, with operations and maintenance managed by Guizhou Jinhong Environmental Technology Co., Ltd., ensuring smooth operation. Additionally, the installed video surveillance system is functioning properly.
3. There is one 2,500-cubic-meter rainwater collection tank and one 2,500-cubic-meter storage tank, along with two sets of pumps. Additionally, there’s a 1,000-m³ emergency accident tank equipped with two pump sets. The two pumps used for leachate lifting and reuse (one operational, one standby) are functioning properly, ensuring that in case of an emergency, the pumped material is directed to either the centralized accident emergency tank or reused in production processes.
4. The containment berms around the sulfuric acid, nitric acid, and ammonia storage tanks show no damage or leakage, and devices such as eyewash stations and showers are functioning properly.
5. The leachate collection pool in the slag yard, along with the emergency collection pools for sulfuric acid, ammonia water, and rainwater, are all structurally intact and show no signs of damage. Additionally, the associated valves, pumps, and pipelines are functioning properly, with no evidence of cracks, drips, or leaks observed.
6. The manganese slag storage facility and its associated safety and environmental protection systems are operating normally. Three groundwater quality monitoring wells are fully functional and being used as intended.
7. The manganese sand filter system installed for the cooling tower and cooling circulation water is operating normally, with no splashing of cooling water during operation. Additionally, there are no leaks observed in the cooling circulation water tank.
8. An emergency supplies warehouse has been established, managed by dedicated personnel, and equipped with appropriate emergency materials and vehicles tailored to various rescue scenarios, ensuring a reliable supply of resources in case of an accident.
6. Pollution Prevention and Environmental Emergency Response Measures
1. An environmental management organization, the Safety & Environmental Protection Department, and a wastewater treatment plant have been established, along with comprehensive environmental protection management systems, operational procedures, and clearly defined job responsibilities.
2. Entrust a qualified third-party testing organization to conduct quarterly monitoring of the company’s pollution sources, as well as water quality at the inlet and outlet of culverts and monitoring wells, and along river cross-sections. Regular sampling and analysis of river sections will also be carried out to ensure effective prevention and management of pollutants, ultimately enabling comprehensive environmental protection, management, remediation, and identification of any gaps or deficiencies. Monitoring for the first and second quarters of 2022 has already been completed.
3. A dedicated person conducts daily safety and environmental inspections, while actively carrying out monthly checks for potential risks in emergency environmental incident management and risk-prevention measures, ensuring thorough record-keeping in ledgers.
4. All departments and workshops involving water usage are equipped with water meters, and a dedicated person monitors the daily water consumption of each workshop. Monthly assessments are conducted based on the established water-use evaluation plan: rewards are given for water conservation, while penalties are imposed for exceeding the allocated limits.
5. Establish comprehensive rules and procedures for managing the slag storage facility, develop a slag storage operation plan, set up a duty room, and assign dedicated personnel to strengthen daily maintenance management and maintain detailed operational records for all equipment in the slag storage facility.
6. Strictly follow the requirements to prepare environmental emergency plans for the plant area and slag storage facility. In the first half of 2022, one emergency drill was conducted specifically for a potential environmental incident at the slag storage facility.
7. During the flood season, dedicated personnel will conduct regular safety inspections and maintain on-duty presence at the slag storage area, hazardous chemical warehouse, and production facilities. This ensures that any potential hazards are promptly reported and addressed, while identified risks are handled without delay, safeguarding the company’s normal operations.
Songtao Sanhe Manganese Industry Group Co., Ltd.
August 15, 2022
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