Jiangsu Litian P&C Terminal Co., Ltd.

Address: Yanjiang Industrial Park, Ligang Town, Jiangyin City
Tel: 4008-810798
Fax: +86-510-86092333
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litianshihua@jsltpct.com
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Information disclosure of environmental impact assessment for the renovation and expansion project of Jiangsu Litian Petrochemical Terminal (first time)

Release time:
2016/04/26 00:00
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In accordance with the spirit of the “Project Environmental Impact Assessment Information Disclosure Mechanism Program” (Huanfa [2015] No. 162), our unit will disclose the environmental impact of the construction project. If there are any opinions or suggestions on the project, please Reflected by the construction unit by email, telephone and letter.
 
 
 
Construction unit: Jiangsu Litian Petrochemical Terminal Co., Ltd.
 
 
 
Address: No. 9 Runhua Road, Ligang Town, Jiangyin Post Code: 214444
 
Contact: Yangcheng Tel: 0510-86092111
 
 
 
E-mail: yangcheng123@vip.qq.com
 
 
 
Start date: May 6, 2014
 
Design unit: Yangtze River Shipping Planning and Design Institute
 
Construction unit: Shanghai Sanhang Pentium Construction Engineering Co., Ltd.
 
Environmental supervision unit: Jiangsu Runhuan Environmental Technology Co., Ltd.
 
 
 
Basic situation of the project:

Establish document

Jiangsu Provincial Development and Reform Commission, Sufa Reform Foundation [2013] No. 417

Construction unit

Jiangsu Litian Petrochemical Terminal Co., Ltd.

Construction nature

Reconstruction

Construction site

The south bank of the Jiangyin waterway in the lower reaches of the Yangtze River, the Lingang Economic Development Zone in Jiangyin City, Jiangsu Province, is located in the tertiary protection zone of the Taihu Lake Basin.

Construction content and scale

It is planned to build a 50,000-ton class and a 20,000-ton liquid chemical berth in the outer file of the terminal; it is planned to build three new 500-ton liquid chemical berths in the internal file.
 
The occupied shoreline is 483m, of which the existing project occupies a coastline of 303m, and this technical transformation project occupies a coastline of 180m.

 

The main environmental protection measures to be taken:
 
The construction period of the project consists of civil engineering, production equipment, installation and commissioning of electromechanical equipment. During the construction period, various construction activities, shipment of construction raw materials, etc. will inevitably cause damage and influence to the surrounding environment. Underwater construction will have an impact on the ecological environment, mainly including dredging works and pile foundation engineering. It mainly includes the effects of exhaust gas and dust, noise, solid waste, and waste water on the surrounding environment, and is particularly evident in dust and construction noise. This chapter mainly deals with the direct effects of wastewater, waste gas and noise generated by construction activities on environmental factors such as surrounding atmosphere, sound, surface water and ecology, and proposes corresponding prevention and control measures. The construction work area should be equipped with a special person to be responsible for scientific management and civilized construction. During the construction of the project, environmental supervision should be carried out throughout the construction process to minimize the environmental impact during the construction period. See the table below for details.

Table 3.1?1 Environmental Impacts and Pollution Prevention Measures during Construction Period

Source of pollution

Prevention

Exhaust gas

Dust and exhaust emissions from construction vehicles

Scientific management of the construction site, sand and gravel should be stacked in a unified manner, bulk cement should be used as much as possible, cover sheds should be installed, and dust-proof facilities should be installed in places with serious dust.

Beware of overloading the transport vehicles, and try to cover and seal them as much as possible to reduce the spillage along the way, and timely clean up the dirt and dust scattered on the road surface, flush the tires, regularly sprinkle water and dust, and reduce the dust during transportation.

When mixing mortar and concrete on site, try to avoid sprinkling, leaking, and not falling; the concrete mixer should be placed in the shed, and spray dust reduction measures should be taken when mixing.

The construction site should be fenced or partially fenced to reduce the spread of construction dust. The dust wall is mainly arranged at the dock to minimize the impact of households near the dust.

When the wind speed is too high, the construction work should be stopped, and the building materials such as sand and gravel stacked should be covered.

Construction vehicles should use large vehicles with low fuel consumption and small exhaust gas whenever possible.

Waste water

During the construction period, the domestic sewage will be collected centrally, and after being treated by the construction site septic tank, the standard discharge Jiangyin Sanli Sewage Treatment Co., Ltd.

Construction vessels are prohibited from directly discharging oily wastewater directly into the Yangtze River. Ship washing wastewater and bilge oil sewage are taken away by the ship and are not discharged in the river section. It is necessary to discharge the ship's own oil-water separator to achieve the ship pollutants. The Emission Standards are discharged in accordance with the designated waters of the Maritime Department.

The drainage of the dredged silt (the main pollutant is SS) is taken over to the existing sewage treatment station in the rear tank area.

The blown tail water is collected and sent to the existing sewage treatment station in the rear tank area for treatment.

Building materials such as cement and lime thrown during construction and transportation should be cleaned up in time to avoid contaminating nearby water bodies with rainwater.

Building materials such as cement, yellow sand and lime should be piled up in a concentrated manner, and certain rain-proof measures should be taken to prevent rainwater from scouring and polluting nearby water bodies.

Cofferdams are arranged around the construction area to limit the impact of construction on the water body SS to a small extent. During the construction process, regular inspections and maintenance are carried out, and the construction of the simple cofferdam is completed.

水土流失

During construction, the construction plan and construction procedures should be reasonably arranged, and the various construction steps should be coordinated. During the rainy season, the slope of the ground should be reduced as much as possible, the excavation surface should be reduced, and the soil material should be excavated and transported to reduce the exposure time of the bare soil. Avoid direct scouring of rainfall. During the rainstorm period, emergency measures should also be taken to cover the steep slope of the new excavation with cover to prevent scouring and collapse.

At the docks and road construction sites, we strive to make the soil materials fill with the pressure, leaving no loose soil. At the same time, to open the side ditch, the slope should be paved with stones, and the diversion trench should be set up upstream of the filling site to prevent the upstream runoff from passing through. The filling operation should be concentrated and avoid the rainstorm period.

noise

Sound insulation, isolation or noise reduction measures

Strengthen construction management, reasonably arrange construction work time, and strictly follow the relevant provisions of construction noise management.

Try to use low-noise construction tools, such as hydraulic tools instead of pneumatic tools, while using construction methods with low construction noise. It is forbidden to use high-noise diesel impact pile driver, vibratory pile driver and mud water reverse circulation drilling machine with pH value over 9.

Set up masks around high noise equipment to reduce the effects of noise.

Before the concrete needs continuous watering, all preparations should be done to keep the mixer running time to a minimum.

Environmental management measures

The construction department should arrange the construction time and construction site reasonably. The high-noise operation area should be away from the acoustic environment sensitive area, and the equipment should be regularly maintained and strictly operated.

The transportation of construction vehicles should be arranged reasonably, avoiding noise-sensitive areas as much as possible, minimizing traffic congestion, and at the same time, compressing the number of vehicles and driving density, and controlling the car whistle.

Reasonably arrange the construction schedule and operation time, and take corresponding time-limited operations for the main noise equipment, and try to avoid the construction of strong noise equipment at night.

Reasonably arrange the location of the construction machinery, place it in the middle of the site as much as possible and the place that has the least impact on the outside of the site.

Solid waste

construction rubbish

The construction site shall be cleaned in time, and the construction waste shall be backfilled and landfilled. The excess shall be piled up in a centralized manner and periodically transported, and covered during the stacking to avoid wind and rain and secondary pollution.

Vehicle transportation

When transporting bulk materials and waste, vehicles must be sealed, bandaged, covered, and must not be spilled along the way; vehicles carrying earthwork must travel according to the specified section within the specified time.

silt

The dredged sludge is backfilled to the rear tank area for leveling.

Domestic garbage

The garbage is packed and temporarily piled up, and the local sanitation department regularly transports it and concentrates it on landfill.

Environmental management

Before construction, the construction unit shall prepare the construction organization plan and establish an environmental management system in detail. A special person shall be responsible for the environmental protection work during the construction period, and corresponding prevention measures and disposal methods shall be made for the “three wastes” generated during the construction. Environmental management must implement the national environmental protection policies, policies, regulations and standards, and establish various environmental management systems centered on the post responsibility system, so that there are rules to follow and scientific management. Civilized construction, incorporating environmental protection into the contract, formulating environmental rules and regulations, and strictly implementing environmental supervision during the construction period

Strengthen the education of construction workers, learn environmental protection laws and environmental protection knowledge, and achieve civilized construction and clean production.

It is recommended that the ISO14000 standard be included in the daily management of the company, and strive to pass the ISO14000 certification as soon as possible. The construction unit has passed the second review of the on-site experts and reported to the relevant institutions.

Ecological protection

When the dock is expanded, the construction site should be scientifically managed. The sand and gravel materials should be stacked in a unified manner, and the enclosure should be implemented to prevent sand and gravel from entering the water body. Construction work should be stopped when the wind speed is too high; construction wastewater should be collected and sent to the existing sewage treatment station in the rear tank area for treatment. The construction of this project should be carried out in the dry season. The construction unit has handed over 480,000 yuan of ecological compensation to the local government department.

       
 

 

2 Environmental impact and pollution prevention measures during the trial operation period
 
The summary of pollution prevention measures during the trial operation period of this project is shown in Table 3.2-1.

Table 3.2?1 Environmental impact and pollution prevention measures during the trial operation period

Source of pollution

Main influence factor

Prevention

Exhaust gas

The waste gas generated during the operation is mainly the materials which are volatilized during the loading and unloading process and storage process of various liquid chemicals.

Establish a sound rules and regulations: post responsibility system, handover system, patrol inspection system, chemical quality management system, equipment maintenance system, safety production system, civilized production system, etc.

Strengthen equipment maintenance and strictly implement the operation process:
 
(1) All machine pumps, pipelines, valves, crane pipes, quick joints, storage tanks and other joints, operating parts and fine sealing points should be firmly connected, so that it is tight, non-permeable and leak-free;
 
(2) All accessories such as conveying pipes are kept flexible and tight. The oil hole and the inlet hole are covered in time. The breathing valve is properly pressured and regularly inspected, cleaned and calibrated to keep the hydraulic safety valve sealed and highly suitable;
 
(3) All chemical containers include storage and transportation vehicles, storage tanks, etc. The technical status of the equipment remains intact and there is no leakage. Find problems and reverse them in time;
 
(4) Chemical cans and trucks are not super high, no excess, no overpressure, no oil, no spillage.
Ship exhaust control measures:
 
(1) It is preferred to use an engine with high power and fast speed;
 
(2) Select high-quality diesel oil with low sulfur content as fuel, and control project to control the sulfur content of diesel oil <0.8%;
 
(3) Reduce the auxiliary machine operating load as much as possible to reduce fuel consumption;
 
(4) Using the internal gas returning measure, a part of the discharged gas is re-entered into the exhaust pipe and then burned.
Sweeping line exhaust gas prevention measures: Use nitrogen to directly sweep the pipe chemicals into the ship or the rear tank area. After the completion of the loading, the “soft connection” between the terminal and the ship is purged from the ship by nitrogen. After the unloading is completed, the “soft connection” between the terminal and the storage tank area is purged by nitrogen from the terminal to the rear tank area. . The construction unit will strengthen management on a daily basis to minimize the frequency of sweeping lines.
 
Control measures for volatile emissions during loading and unloading:
 
(1) It is strictly forbidden to open the warehouse when loading the ship, and minimize the exhaust emissions during the loading process;
 
(2) For the chemical vapors and oils emitted by the gas volatilization during the loading and unloading process and the dripping of the material infusion pump, the liquid level rises slowly during the loading, reducing the liquid splash, thereby reducing the volatilization of hydrocarbons during the loading process, and can reduce The generation of static electricity;
 
(3) Adopt advanced loading and unloading equipment facilities and materials to ensure the sealing between valves, flanges and pipes, and strengthen the use, management and maintenance of loading and unloading equipment facilities, so that they are always in good condition and really reduce evaporation. The role of loss;
 
(4) Connect a gas recovery pipeline, that is, a balance pipe, between the receiving and dispatching chemical containers (storage tanks, tankers, and shipyards), so that the gas discharged from the receiving container is returned to the delivery container, preventing the mixed gas in the receiving container. Discharge into the atmosphere, and avoid the inhalation of air from the shipping container and the subsequent reversal of exhalation.
 
(5) During the production process, when loading and unloading, try to receive the goods when cooling down. The receiving time can be arranged in the evening to midnight; arrange as much as possible in the storage tanks that have been received, which can reduce the large breathing loss; Try to increase the flow rate of the pump so that the chemical does not reach a large amount of evaporation to reduce the loss; when it is shipped, the rate should be slowed down at the end of the shipment to avoid back-reverse breathing;
 
(6) In order to reduce the respiratory loss of the storage tank, the storage tank is equipped with a breathing valve baffle, and a horizontal baffle is installed on the lower side of the breathing port of the storage tank to form a narrow space. When the gas is exhaled, the air in the narrow space at the top of the tank is first exhaled. At the same time, strengthen the use, management and maintenance of the breathing valve and hydraulic safety valve, so that it is always in good condition, and really plays a role in reducing evaporation loss;
 
(7) The immersion filling method is adopted in the material filling process, that is, the feeding tube is placed in the bottom of the tank within 0.15 to 0.2 m, thereby avoiding a large agitation when the material is filled, and the chemical vapor generated is extremely small. The volumetric displacement ratio of chemical gas to liquid is close to 1:1;
 
(8) Maintain proper temperature for high vapor pressure chemicals to avoid loss of volatilization, especially in summer, using water spray cooling method to reduce the amount of breathing during loading and loading;
 
(9) Strengthen management, strict operation procedures, close the loading interface in time, and minimize the amount of volatilization during the loading process;
 
(10) The loading and unloading arm connection is adopted between the dock and the freighter to prevent the influence of the surplus on the atmosphere;
 
(11) Where there is a possibility of gas leakage at the loading platform and the pumping room of the tank area, a flammable gas and a toxic gas detecting instrument are provided;
 
(12) According to the VOC pollution prevention and management requirements, it is recommended to set up VOC pollution prevention and control facilities.
 

The surface of the tank is coated with a strong reflective light-colored paint, which not only has anti-corrosion effect, but also reduces the heat of the tank to receive sunlight and reduces the temperature of the material in the tank, thereby reducing the "small breath" evaporation loss of the tank.

Depending on the nature of the material, different types of storage tanks are used for different types of chemical storage. For example, for methanol, toluene, and xylene, the inner floating roof tank is filled with nitrogen, and the ethylene glycol is fixed with a top tank and a nitrogen seal.

Waste water

The wastewater of this project mainly includes: land domestic sewage, ship domestic sewage, dock platform washing wastewater, machine repair wastewater, initial rainwater and ship oily wastewater.

Surface water

The project will set up a new 55m3 domestic sewage collection tank, which can accommodate about 7 days of domestic sewage. After the rainy season, the domestic sewage collected by the sewage collection pool will be reused for greening in the plant area to meet relevant requirements.

According to the International Convention for the Prevention of Pollution from Ships in 1970 and its 1978 Agreement, the ship's oily sewage is treated by the oil-water separator and separated by the special environmental protection ship of the maritime department. Ship domestic sewage is also collected and disposed of by environmental vessels with maritime affairs.

A collection sill is set up at the docking platform loading arm and valve concentration point. The dock platform flushing wastewater and the initial rainwater are collected by the collecting dam, and two sewage pool collecting pools are set. The collection pool sizes are 1.0m×0.8m×1.5m and 1.5m× respectively. 1.5m×1.5m, the collected wastewater is pumped into the pipeline through the self-priming centrifugal pump and sent to the existing sewage treatment unit in the rear tank area for pretreatment. After pretreatment, it is taken to the Jiangyin Sanli Wastewater Treatment Co., Ltd. for treatment.

The machine repair wastewater is collected together with the flushing wastewater of the dock platform through the sewage tank, and is pumped into the sewage treatment unit of the rear tank area by the self-priming pump, and then taken over to the Jiangyin Sanli Wastewater Treatment Co., Ltd. for treatment.

groundwater

Set up cofferdams, ground anti-seepage and wastewater diversion facilities for outdoor equipment areas involved in material storage. Wastewater pools and other structures are treated with anti-seepage treatment. Regularly inspect these structures to ensure that no leakage can contaminate the groundwater.

A fixed solid waste storage site is set up in the factory to carry out ground anti-seepage and supporting rain-proof facilities.

There are non-leaking foundations and cofferdams in all areas where chemicals are handled or stored to ensure that any material spillage can be recovered to prevent environmental pollution.

The wastewater from the expansion project will be treated in the existing sewage treatment facilities in the plant. The domestic sewage will be treated by septic tanks for greening. After the treatment, the wastewater will be taken to the Jiangyin Sanli Wastewater Treatment Co., Ltd. for treatment.

On-site sewage treatment facility

The sewage treatment facilities of this project are basically supported. Jiangsu Litian Petrochemical Terminal Co., Ltd. currently uses a sewage treatment facility with a treatment capacity of 200m3/d in the rear tank area to treat the wastewater. After taking over the standard, it will take over to Sanli Sewage Treatment Co., Ltd. Centralized processing. The company's existing wastewater mainly comes from: ground washing wastewater in the dock and tank area, cleaning tank wastewater and initial rainwater, etc. The wastewater discharge is 85.17m3/d, and the wastewater treatment plant still has a processing allowance of 114.83m3/d.

Jiangyin Sanli Sewage Treatment Co., Ltd.

After the implementation of the project, all wastewater will be connected to Jiangyin Sanli Sewage Treatment Co., Ltd. for centralized treatment according to the requirements of the management of the development zone. The design and treatment scale of Jiangyin Sanli Sewage Treatment Co., Ltd. is 20,000 t/d, and there is still a processing allowance of 14815.55 t/d. The discharge of wastewater from this expansion project is about 11.60t/d, and the total discharge of wastewater from existing and ongoing projects is about 85.17t/d. After the completion of this expansion project, the total discharge of wastewater from the whole plant is about 96.77t/ d. The total amount of wastewater discharged from the expansion project and the whole plant accounts for about 0.058% and 0.484% of the wastewater intake of Jiangyin Sanli Wastewater Treatment Co., Ltd., respectively. Therefore, Jiangyin Sanli Wastewater Treatment Co., Ltd. is fully capable of accepting the water. The amount of wastewater in the project. Considering that the amount of wastewater in this expansion is small (11.60t/d), and the main pollutants in the wastewater are not changed by the characteristic factors, the other comprehensive indicators have little change (concentration value), and there is no new special hazardous water biochemical treatment in the wastewater. Substance. Therefore, the wastewater of this expansion project can meet the requirements of the “Integrated Wastewater Discharge Standard” and the takeover standard of Jiangyin Sanli Wastewater Treatment Co., Ltd. after being treated by the existing in-plant sewage treatment station in the rear tank area. Moreover, the wastewater discharge of this project is small, which will not affect the treatment process of Jiangyin Sanli Wastewater Treatment Co., Ltd.

noise

The noise during operation mainly comes from

 

Address :Yanjiang Industrial Park, Ligang Town, Jiangyin City
Zip code :214444
Tel:4008-810798
Fax:+86-510-86092333
E-mail:
litianshihua@jsltpct.com
The url:http://www.jsltpct.com

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4008-810798