Songtao Sanhe Manganese Industry Group Co., Ltd. 2021 Environmental Management Information Disclosure

1. Company Profile

In 2004, Songtao Sanhe Manganese Industry Group Co., Ltd. completed and put into operation a 20,000-ton/year electrolytic metal manganese production line in the first branch. /a The overall upgrading and technical transformation project of electrolytic metal manganese production line (using the production capacity of the original 20000t/a electrolytic metal manganese production line of the first branch and the 30000t/a electrolytic metal manganese production line of the original second branch, eliminating the 20000t/a metal manganese production line of the original first branch, rebuilding and expanding two points The 30,000t/a electrolytic metal manganese production line of the factory, the 50,000t/a electrolytic metal manganese production line was upgraded as a whole to the second branch), and four electrolytic manganese production lines with a single-line capacity of 12,500t/a were formed. The manganese slag silo uses the manganese slag silo built in the original No. 2 branch. The project covers an area of ​​91,943 square meters. The total investment of the project is 213.955 million yuan, and the environmental protection investment is 17.4 million yuan, accounting for 8.13% of the total investment.

In 2021, in accordance with the requirements of the National Manganese Industry Technical Committee Electrolytic Manganese Innovation Alliance to "better complete the industrial upgrading work and achieve the goal of double reduction", our company will stop production for two months in total.

2. Management of solid waste and hazardous waste

1. In 2021, the stockpile of manganese slag will be 151,700 m³, and the current stockpile is about 900,000 m³.

2. In 2021, the storage volume of laboratory waste liquid will be 468.85 kg; the storage volume of waste mineral oil will be 2.87717 kg. The generated waste oil and laboratory waste liquid have been handed over to qualified units for treatment before December 26, 2021.

3. About 1,700 tons of anode slag will be produced in 2021, which will be sold to relevant ferroalloy factories for waste utilization.

3. Operation of environmental protection equipment and facilities:

1. The ore yard in the milling workshop is equipped with canopy, dust-proof and spray systems, and the ore is conveyed by conveyor belts. The pulverizing process adopts fully enclosed negative pressure equipment, and the dust generated by the crushing system and the high-pressure roller mill grinding system is treated by two bag dust collectors respectively, and a single-machine dust collector is installed on the top of the silo for dust removal, and the dust collector treatment efficiency reaches 99.5%. above.

2. There are two sets of dust removal equipment in the chemical pulping system. The dust collected is used for pulping again, and the pulped solution is transported through the pipeline to avoid secondary pollution. The compound leaching process is equipped with 4 sets of acid mist treatment towers. After the treatment reaches the standard, the dust treated by the 15-meter exhaust pipe meets the secondary standard of "Comprehensive Emission Standard of Air Pollutants" [GB16297-1996]. Dust removal, dust collection equipment, and acid mist treatment towers are operating normally. The compound tank is made to prevent the compound liquid from overflowing the cofferdam, and the cofferdam is not damaged or leaked.

3. The electrolysis workshop uses polymer RPP energy-saving and environmentally friendly electrolytic cells and is set up overhead. The ground is treated with "three cloths and five oils" + anti-corrosion bricks to prevent leakage, without damage and leakage; the workshop is equipped with silent axial flow fans. Provide air displacement ventilation.

4. The filter press workshop selects high-efficiency filter press equipment. The water content of the filter press manganese slag is about 24%. The filter press manganese slag is transported to the slag warehouse by conveyor belt, which meets the requirements of the EIA.

5. The production wastewater, slag silo leachate and initial rainwater collected and treated are all reused in the production water system and solution system.

6. The domestic wastewater is collected and treated separately and then discharged through the pipe network into the domestic wastewater plant of Songtao Economic Development Zone for advanced treatment.

4. Management of pollution prevention and control

1. Set up the safety and environmental protection department of the environmental protection management agency and the sewage treatment station, and establish the environmental protection system, job responsibilities, and operating procedures. There is one sewage treatment station, with 1 station manager and 9 employees; the daily manganese wastewater treatment capacity is about 1850m3. Ammonia nitrogen treatment capacity is 500m³. The wastewater treatment tank is 620 cubic meters, the capacity tank is 600 cubic meters, and the filtration volume is 13 cubic meters. 2 filter presses and supporting equipment.

2. One set of online monitoring system for slag storage and one set of online monitoring system for pollution sources in the plant area are installed. Guizhou Jinhong Environmental Protection Technology Co., Ltd. is entrusted to carry out operation, maintenance and management, and the operation is normal. The installed video surveillance system is functioning normally.

3. Entrust a qualified third-party testing service agency to regularly monitor the company's pollution sources, culvert entry and exit, monitoring well water quality, river sections, and soil on a quarterly basis; equipment comparison and testing; and regular sampling and testing of river sections to ensure that Effective prevention and management of pollutants. Realize environmental protection, management, rectification and check and fill omissions. The monitoring has been completed in each quarter of 2021 and released on the monitoring platform, and the detected items meet the relevant standards stipulated by the state.

4. Water meters are installed in all departments and workshops involved in water use. Special personnel will unify the water consumption of each workshop on a daily basis, and conduct assessments according to the monthly water assessment plan. There will be rewards for saving and penalties for overuse.

5. There are cofferdams for sulfuric acid storage tanks, nitric acid, and ammonia water storage tanks. The cofferdams are not damaged or leaked, and the eyewash, spray and other devices are normal.

6. The leachate collection pool of the slag silo, the emergency collection pool for sulfuric acid, ammonia water and rainwater is in good condition without any damage, and the auxiliary valves, pumps and pipes are normal, and no cracks, drips or leaks have been found.

7. The manganese slag warehouse and its ancillary safety and environmental protection facilities are operating normally. Set up three groundwater quality monitoring wells for normal use.

8. The manganese sand filter system installed in the cooling tower and cooling circulating water is running normally, and there is no cooling water splashing phenomenon during operation. There is no leakage in the cooling circulating water pool.

9. There is a set of ammonia nitrogen treatment facilities, with a daily capacity of about 500m3, and the facilities are operating normally.

V. Environmental emergency prevention and control

1. There is one emergency material warehouse, which is managed by special personnel. According to the emergency rescue situation, it is equipped with corresponding emergency materials and emergency vehicles, etc., to ensure the supply of materials in the event of an accident.

2. Dedicated personnel to conduct safety and environmental protection inspections every day, actively carry out investigations of hidden dangers in emergency management of environmental emergencies and risk prevention and control measures for environmental emergencies every month, and keep records in the ledger.

3. Rainwater collection pool (2500m³, capacity pool (2500m³), two sets of water pumps, accident emergency pool (1000m³), two sets of water pumps, 2 sets of pumps for leachate lifting and reuse process (one for use and one for standby) The operation is normal to ensure that the emergency pump material is transported to the centralized emergency emergency pool and production reuse.

4. Formulate and establish various rules and regulations for the management of the slag silo, formulate the operation plan of the slag silo, set up a duty room, and assign full-time slag silo management personnel to strengthen the daily maintenance management and operation record of various equipment in the slag silo.

5. Prepare the environmental emergency plan for the plant area and the slag depot in strict accordance with the requirements (compiled in September 2019 and filed with the environmental department). In 2021, a slag storage emergency environmental accident drill and a hazardous waste leakage accident drill will be held.

6. During the flood season, special personnel are arranged to conduct daily safety inspections and on-duty duty in the slag warehouse, hazardous chemicals storage area and production plant area. Report and eliminate dangerous situations in a timely manner, and deal with hidden dangers in a timely manner to ensure the normal operation of the company's production.

7. There will be no environmental pollution accidents and environmental complaints in 2021.

Songtao Sanhe Manganese Industry Group Co., Ltd.

January 10, 2022