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Verification of the water intake project for the first phase of the Datang Keshiketeng project, which has a daily production capacity of 4 million cubic meters of natural gas / Author/Source: Date: 2017-07-04 Clicks: 20 Recently, the Water Resources Department of Inner Mongolia Autonomous Region issued a letter containing its opinions on the verification of the water intake project for the project of Inner Mongolia Datang International Keshiketeng Coal-to-Natural Gas Co., Ltd., whose daily production capacity is 12 million cubic meters of natural gas (with the first phase having a capacity of 4 million cubic meters per day). In accordance with the requirements of the Regulations on the Administration of Water Withdrawal Permits and Water Resource Fees (Decree No. 460 of the State Council) and the Measures for the Administration of Water Withdrawal Permits (Decree No. 34 of the Ministry of Water Resources), on March 3, 2017, the Water Resources Department of Inner Mongolia Autonomous Region organized representatives from relevant agencies and experts to form an inspection team (the list is attached). A meeting was held in Keshiketeng Banner, Chifeng City, to inspect the water withdrawal project for the 12 million cubic meters per day natural gas production project of Inner Mongolia Datang International Keshiketeng Coal-to-Natural Gas Co., Ltd. (with a capacity of 4 million cubic meters per day for the first phase), in order to assess the water withdrawal process and usage. The inspection team examined various facilities related to water intake projects, major water-using installations, metering equipment, as well as waste water treatment and discharge systems. They listened to the owner’s presentation on the construction status of the water intake projects and the situation regarding water use, and reviewed the relevant documents. After raising questions and conducting thorough discussions, the following conclusions were reached: First, the Inner Mongolia Datang International Keshiketeng project, which has a daily natural gas production capacity of 12 million cubic meters, is the first large-scale coal-to-natural gas demonstration project approved by the **Development and Reform Commission. The project is constructed in phases. It is located in Xitenghai, Darihanwula Sub-district, Keshiketeng Banner, Chifeng City. The factory covers an area of 418.93 hectares, of which 214,400 square meters are dedicated to green spaces. The first phase of the project, with a daily production capacity of 4 million cubic meters of natural gas, began trial operation in December 2013 and entered the capitalization stage in November 2015; it employs 1,745 workers. The water for the project is sourced from the Dashi Men Hydropower Station, which was built with investment from Datang International. Located upstream of the main stream of the Xilamulun River, where the Shalimuo River and the Saling River converge, it is situated 13 km downstream from the point where these two rivers meet. Its main functions are to supply water and generate electricity, with additional uses including tourism. The average annual runoff volume above the dam site is 224 million m3; after accounting for other water uses, 60 million m3 can still be supplied for industrial use at a design reliability level of 97%. The water intake for the water supply project is located on the left bank of the reservoir area. After being lifted by a primary pump station, the water is sent to the regulation tank at the secondary pump station. There, it is pressurized and then sent to a high-level tank, from which it is delivered to the integrated tank in the factory area by gravity, before being supplied to various water usage systems. II. The Water Resources Department of the Inner Mongolia Autonomous Region approved the \"Water Resources Assessment Report for the Datang International Kesiketeng Project with a daily production capacity of 12 million cubic meters of natural gas\", via document No. \"Nei Shui Zi [2007] 13\", and agreed to use the surface water from the Dashi Men Hydropower Station as the water source for production and daily use in this project. The annual water consumption of the project is 33.99 million m3, of which 33.817 million m3 is used for production and 173,000 m3 for domestic use. The primary pump station for the water supply project is located on the left bank of the reservoir area of the Dashi Men Hydropower Station. The initial design called for 8 submersible clean water pumps; 4 of these have been installed, while the pipes for the remaining 4 are still in place but not yet connected. Currently, the system operates with 3 pumps in use and 1 as a backup. The pumping capacity of each pump is 0.28 m3/s. The output from these submersible clean water pumps is fed into two DN900 pipelines, which then deliver the water to the two regulation tanks at the secondary pump station ； The secondary pump station is equipped with 8 single-suction, two-stage, split-case horizontal centrifugal pumps, designed to operate in a 6-in-service/2-backup configuration. Four of these pumps have been installed, while the remaining four have pipes prepared but not yet installed; currently, it operates with 3 pumps in service and 1 in backup. The outlet of the secondary pump station is connected to two DN1000 water transmission pipelines, which carry water to a high-level reservoir with a capacity of 2000 m3 ； The high-level water tank uses gravity flow to deliver water to the plant’s central water tank through 2 DN1000 water pipelines. The water supply project commenced construction in September 2009, was initially completed and put into trial operation in September 2010, and is now in operation. It is performing well and is capable of meeting the water demand of this project. The water supply system is equipped with 2 electromagnetic flowmeters manufactured by Beijing Ruipu Sanyuan Instrument Co., Ltd. at both the primary and secondary pumping stations. The model for the primary pump is RPMAG62F-10004111032T; it operates at 220VAC, consumes 20W of power, and has an IP65 rating, with a DN1000 diameter ； The secondary pump is model RPMAG62F-10004111032T, with 220VAC power supply, 20W power consumption, IP65 protection rating, and DN900 diameter; it can meet the requirements for water intake measurement. III. Upon verification, the water intake for this project is generally in compliance with the relevant regulations regarding water intake permits. After the capitalization in 2016, the amount of water used per unit of product produced was 7.81 m3/kNm3, while the reuse rate of water was 97.62% – figures that are better than those specified in the water resources assessment. These values meet the industry-specific water usage standards set by the autonomous region as well as other relevant industry standards; thus, the water usage is reasonable. It is generally agreed that this water intake project meets the requirements outlined in the water intake permit regulations. The production scale is based on the design capacity of Phase 1, which is 4 million cubic meters of natural gas per day ； The population using water is 1,745 people; the standard amount of water per person per day is 250 L/person•day, and the water use period is 365 days ； The green space area is 214,400 m2. The water consumption rate is set at 1 L/m2•day, with a water use period of 185 days ； Taking into account an 8% loss in water delivered for use, the annual amount of surface water to be drawn from the Dashi Men Hydropower Station for the first phase of the project is provisionally set at 11.5322 million m3, of which 11.3160 million m3 will be used for production purposes, 173,100 m3 for the living needs of employees at the plant, and 43,100 m3 for plant landscaping. After the system is stabilized after being put into operation, a water balance test should be conducted, and the water intake quota should be revised based on the results of this test. IV. Recommendations 1. The project owner should further refine the \"Report on the Construction and Trial Operation of the Project’s Water Intake Facility\", and supplement and improve the relevant materials and explanations. 2. The owner shall further increase the recycling of wastewater from the evaporation ponds; under normal conditions, no wastewater shall be discharged into these ponds again. 3. The project owner shall strictly comply with relevant regulations, strengthen the management of planned water use and water conservation, prepare plans for water intake in this project, conduct statistics on water usage data, and prepare annual summaries, all of which shall be submitted to the water administration authorities in a timely manner. 4. The water user shall, in accordance with the requirements of the \"General Rules for the Installation and Management of Water Metering Devices in Water Users\" (GB24789-2009), further improve the water metering facilities, establish a comprehensive system for measuring water intake and consumption, and strengthen the management of such metering facilities. It is also recommended to install a real-time online monitoring system for water intake, and to connect it to the regional real-time water intake monitoring system platform. 5. The owner shall, in accordance with relevant regulations, carry out level balance tests on a regular basis, formulate reasonable water use and conservation plans, continuously strengthen water-saving technological upgrades, and reduce the amount of fresh water drawn from sources. 6. The property owner shall voluntarily submit to the supervision and management of the water administration authorities, and pay the water resource fees in full in accordance with relevant regulations.