First, the construction project overview
project name : Nanshan Group Co., Ltd. Ethane comprehensive utilization project.
Construction site : Longkou high-end chemical new materials industry concentration area.
Project components and product solutions : Purchased from the imports of ethane as raw materials to produce ethylene, ethylene glycol, polyethylene and other products.
The main device includes : 2 million tons / year ethylene plant, 1.25 million tons / year ethylene glycol plant, 400,000 tons / year ethylene-vinyl acetate polymer / low density polyethylene resin plant, 350,000 tons / year linear low density polyethylene resin plant , 350,000 tons / year high density polyethylene resin plant, 300,000 tons / year high density polyethylene resin / linear low density polyethylene resin plant.
Second, the construction project may have an impact on the environment and mitigate the adverse environmental impact countermeasures and measures
In terms of exhaust gas: The exhaust gas of this project mainly comes from process exhaust gas, cracking furnace flue gas, incinerator flue gas and gas boiler flue gas.
(1) Process emissions control
The process waste gas generated from each unit of the project is recycled and used, the waste gas from the ethylene plant, the ethylene glycol regeneration tower condensate gas and the aldehyde-containing process waste gas, the ethylene-vinyl acetate polymer / low density polyethylene resin plant process gas are oxidized , Filtration, biological deodorization and incineration to meet the requirements of the "Standard for Emission of Pollutants from Petrochemical Industry", "Emission Standard of Industrial Pollutants for Synthetic Resin" and "Emission Standard of Odor Pollutants" Atmospheric environment: The discharge gas, pollutants and so on of the filter system, dryer, separator, reactor, vacuum system and silo of each device are less pollutant, after filtering and other measures, they are discharged into the atmosphere.
(2) combustion exhaust emissions control
Gas-fired boilers, pyrolysis furnaces, exhaust gas thermal oxidation furnaces and waste liquid incinerators in this project reduce emissions of sulfur dioxide by using low-sulfur fuel gas and natural gas as fuel produced by chemical plants. Gas-fired boilers, cracking furnaces and exhaust gas thermal oxidation furnaces are used Low nitrogen burners to reduce the amount of nitrogen oxides generated by setting the appropriate height of the chimney emissions so that combustion emissions of sulfur dioxide, nitrogen oxides and soot and other pollutants emissions in line with the "Shandong Province, the Integrated Air Pollution Emission Standards "DB37 / 2376-2013 the fourth period of key control areas of the discharge limit standards discharge standards.
The main discharge of exhaust gas to install on-line monitoring of exhaust gas emissions, continuous monitoring of exhaust flow and pollutant concentrations, and provincial and municipal environmental protection departments and other higher levels of networking, to accept the supervision and inspection authorities.
(3) Unorganized exhaust emission control
Through the selection of advanced equipment, improve the material grade, strengthen management, carry out periodic leak detection and repair work, to prevent the occurrence of dribbling.
In terms of wastewater, the drainage of this project is divided into domestic sewage system, process wastewater, polluted rainwater, clean wastewater and clean rainwater system according to its water quality.
(1) Domestic sewage system: domestic sewage system collects domestic sewage discharged from auxiliary facilities such as control room, power distribution room, water room and restroom, etc. and sends it to the WWTP of this project for treatment after passing through the park Pai Pai Pai Pai.
(2) Wastewater production and pre-rainwater system: The production sewage system receives the production wastewater from the plants and the rainwater from the pre-installation area of the plant, and the sewer and pre-rainwater of each plant are sent to the wastewater treatment plant of this project for disposal after passing through the park's outflow Mouth outside the row.
(3) Clean wastewater system: the steam condensate produced in the production plant, etc. Recycling waste water discharged from pyrolysis furnace drum continuously, supplemented to dilute steam in quench water, intermittent release of waste water from pyrolysis furnace drum for recycling Water system.
(4) Rainwater system: The rainwater system collects the clean rainwater in the project area and enters the rainwater monitoring pool. After passing the monitoring and analysis, it is discharged.
Solid waste: The wastes generated in this project include waste catalyst, waste desiccant, spent adsorbent, residual activated sludge in sewage treatment plant, clear bottom sludge and aerosol scum, organic waste liquid, waste emission meter, etc. Waste catalysts Commissioned by a qualified processing factory for disposal.Wastewater plant remaining activated sludge, bottom tank sludge and floating aerosols by concentration, dehydration and desiccation after reduction processing entrusted to qualified processing factory disposal. Project waste incinerator incineration.
Polyolefin plant radioactive level meter scrapped, in accordance with the "radioactive pollution prevention and control law" requirements, the province to the designated departments for unified treatment.Ethylene plant emissions of waste lye by the device waste alkali wet oxidation unit for processing qualified wastewater Sewage treatment plant to further discharge.
Noise: The main noise equipments of this project include compressors, fans, pump and steam blow-out noise. The main noise equipments are controlled by building sound insulation measures. At the same time, practical and reliable noise reduction, noise reduction, Shock absorption measures, gas emission noise control, silencer setting, etc. Through the above noise reduction measures, the noise at the factory boundary can be guaranteed to meet the noise emission standard GB123 48-2008 at the boundary of industrial enterprises without any impact on the surrounding residents.
Third, the conclusions of environmental impact assessment points
According to the Guiding Catalog of Industrial Structure Adjustment (Year 2011) (as revised in 2013), the proposed project is an allowable project and meets the requirements of the national policies. The project construction can achieve, under the premise of implementing environmental protection measures, Accept the local environment, the construction project is feasible.
Fourth, the public access to the mode of environmental impact report and the deadline
The public or social organizations may refer to the brief of the environmental impact report in Room 319, 3rd Floor, Administrative Service Center, Longkou Economic Development Zone Administrative Committee for the duration of 10 days from the date of publication of this item.
Fifth, to solicit public opinion of the scope and main issues
The scope of public consultation: villages around the project area and surrounding enterprises and institutions, as well as agencies and units.
Main items for public comment: Include:
(1) Exhaust gas, waste water, noise and other environmental impacts caused by the project as well as the environmental impact during the construction period of the project are considered feasible from the environmental point of view;
(2) From the perspective of environmental protection, opinions on the project construction;
(3) Other environmental requirements and recommendations.
Sixth, the main way for the public to make comments
You are welcome to contact us by phone, letter or e-mail through the following contact information, or submit your valuable suggestions or suggestions.
Construction unit
Name of Institution: Nanshan Group Co., Ltd.
Contact: Wang Tel: 0535-8667868
EIA unit
Name of Institution: Environmental Science and Technology Co., Ltd. of Shandong Province
Unit Address: Li Shan Road, Jinan City, 50 Post Code: 250013
Contact: Yan workers Tel: 0531-66573392
Seven, the public comment on the starting and ending time
The public may make valuable comments to the EIA agencies and construction units within 10 days upon the publicity of this project.
Nanshan Group Co., Ltd.
February 2, 2018