The hottest Xixian new area to create a green ecol

Xixian New Area: create a green ecosystem, Huining paper takes the lead

release date: Source: people, Shaanxi

good ecological environment has become a bright business card of Xixian new area

after processing, the waste paper transported to the paper mill takes only more than 3 hours at the fastest, and becomes the raw material for processing packaging boxes; Brick, stone, concrete and other construction waste can be crushed into beautiful paving bricks, lattice bricks and other building materials products; A new heating technology called mid deep non-interference geothermal energy can achieve "zero emission" of carbon dioxide and achieve remarkable results in pollution control and haze reduction...

Xixian new area, as the first national new area in China with the theme of innovative urban development mode, adheres to the concept of ecological civilization in practice and exploration, and has the function of power-off memory; Promote the development and industrialized application of advanced manufacturing equipment, expand and strengthen intelligent manufacturing equipment, new energy and new materials, energy conservation, environmental protection and comprehensive utilization of resources, lay a green foundation for the high-quality development of the city, and walk out a green, low-carbon and sustainable development path

waste paper turns into high-strength corrugated

only 3 hours

with the rapid development of e-commerce, environmental pollution caused by a large number of product packaging has brought great pressure to urban governance

in the yard of Huining paper industry, the forklift is shoveling the waste paper transported from the waste paper packaging station and other places on the transport vehicle into the pulper

"these waste papers are generally collected from residential areas, comprehensive supermarkets, farmers' markets and other places, collected by contractors and small traders, and sent to various waste transfer stations. The last stop is us. You see, this is the goods just delivered. After nine processes in four main links: shredding, screening, pulping and papermaking, it takes only more than three hours at the fastest to turn into high-strength corrugated paper, which is the raw material for manufacturing all kinds of packaging boxes."

through the explanation of Wu Huifang, chairman of Huining paper, we have a complete understanding of the "life course" of a piece of paper. Huining paper's 50000 ton production line can consume 150 tons of waste paper every day and produce more than 120 tons of high-strength corrugated paper

in Wu Huifang's view, maximizing the recycling of resources is the direction of the development of the environmental protection industry

in order to break the "Curse" of high pollution in paper mills, Huining paper industry, after two technological reforms, initially achieved zero pollution discharge of wastewater in the production process in 2008, and was awarded the title of national zero emission demonstration enterprise by China Environmental Protection Industry Association

in August this year, Wu Huifang reached an agreement on comprehensive utilization of resources with the garbage power plant 1.5 kilometers away from the company, intending to establish an industrial base for comprehensive utilization of waste paper

"one ton of solid waste can produce about one ton of steam, and one ton of steam can generate 300 kwh. In this way, 360000 tons of waste paper produced in the production process can be digested in one year, which is more energy-saving and environmental friendly."

Wu Huifang firmly believes that the environmental protection industry has good prospects for development. "If a city wants to be beautiful, poor garbage disposal is a big problem. We should all contribute to a better living environment."

construction waste turns into building materials products

as long as 28 days

Shaanxi Hanqin renewable resources utilization Co., Ltd. can realize the "turning waste into treasure" of construction waste

on December 5, in the brick making workshop of Hanqin recycling company, which uses servo electromechanical as the power source, only a few rows of ecological permeable bricks that have just been pressed and formed are being naturally maintained. After 28 days, these products can be shipped. Caoyongjie, the chief engineer of the company, said that all brick products produced by the company are made of construction waste, and the quality fully conforms to national standards

in the central control room of Hanqin recycling company, 12 real-time images on a large screen completely present the whole process of construction waste treatment. "Through feeding, crushing, screening, iron removal, impurity removal and sewage treatment system, construction waste will form a variety of recycled aggregates of different sizes." Cao Yongjie said, "after crushing, bricks, stones, concrete and other waste materials can be used as substitutes for natural sand and stone, which can be widely used in engineering construction, and can also be used to make paving bricks, lattice bricks and other building materials products."

according to the introduction, this construction waste recycling production line of Hanqin recycling company can process 1million tons of garbage, produce 950000 tons of recycled aggregate and 100000 cubic meters of recycled brick products a year, save 1million tons of sand and stone mining, and improve the economic benefits of the building materials industry. At the same time, the ecological environment has been greatly improved, the ecological benefits have been improved, and the recycling of construction waste has been achieved in a real sense

Cao Yongjie also noted that many wastes in construction waste can be reused as renewable resources after sorting, removal or crushing, so as to truly "eat dry and squeeze clean". He said that great achievements have been made in the development of experimental machines: "metals such as waste steel bars, waste iron wires, waste wires and various waste steel accessories can be processed into steel of various specifications after sorting, concentration and reheating; waste bamboo wood can be used to make artificial wood."

clean heating

heating from 2000 meters underground

with the entry of more than 7000 graduate students and a number of scientific research institutions of Xi'an Jiaotong University, the science and technology innovation port in Western China, located in Fengxi new city, Xixian new area, Shaanxi Province, suddenly became lively

on January 6, in the middle of winter, Shaanxi Province has just issued a new round of cooling warning. Kang Feihu, the operation and maintenance staff of the innovation port energy project of Fengxi new City Energy Development Co., Ltd. in Xixian new area, debugged the equipment temperature and pressure at the innovation port No. 3 energy station to ensure that the majority of teachers, students and scientific researchers working and studying in the innovation port have a warm winter

walking into the equipment room of the energy station 11 meters underground, two ground source heat pump units look like locomotive, with dense tubes overhead. This is just an "energy transfer station". The secret of continuously providing energy for the energy station lies in the undisturbed geothermal heat exchange hole in the middle and deep layer. The 8 heat exchange holes are located in the green area not far from the station building

on the floor of the examination room, there is a small hole with a diameter of about 20 cm. The workers drilled a hole at a depth of about 2500 meters underground through the drill, and installed a closed metal casing heat exchanger in the hole to export underground heat energy through the heat exchange medium. Niu Jichao explained vividly, "if the earth is compared to a big stove, it is equivalent to inserting a metal pipe into the big stove. Through the continuous medium circulation, the continuous heat in the stove is exported through the metal pipe, and the ground heat pump unit transmission and distribution system is used to supply heat to the ground buildings."

it is reported that one heat exchange hole can meet the heating demand of about 15000 square meters of buildings, saving more than 30% compared with the traditional shallow ground source heat pump technology. There are 91 heat exchange holes in the whole innovation port, distributed around 6 distributed underground energy stations, covering 1.59 million square meters of buildings in the science and education sector of the innovation port

it was learned from the 2019 International Forum on innovative urban development mode (Xixian) held on October 13 that the medium and deep non-interference geothermal heating technology has been comprehensively promoted in Xixian new area, with a heating coverage of 6.5 million square meters

undisturbed geothermal heating in the middle and deep layer has incomparable green advantages. It is estimated that in the four month heating season, 20million square meters of buildings use medium and deep geothermal energy for non-interference heating. Compared with coal-fired boilers, it can replace 320000 tons of standard coal, reduce 860000 tons of carbon dioxide emissions, and reduce 5088 tons of air pollutants such as sulfur dioxide and nitrogen oxides, which is equivalent to the annual ecological compensation for planting 7.12 million trees

"this new heating technology can achieve" zero emission "of carbon dioxide, no waste gas, waste liquid, waste residue, and has achieved remarkable results in pollution control and haze reduction, providing a solution to the problem of clean heating in northern cities." Liuhongtao, general manager of Fengxi energy company in Xixian new area, said

rainwater storage

the groundwater level rises by 3.43 meters

in sponge City, there are more and more roof gardens and low-lying green belts. The collection and storage facilities realize the reuse of rainwater and minimize the impact of development and construction on the environment

there are two rainwater reservoirs in this community, and the rainwater stored in them can be used to irrigate more than 40000 square meters of green space in the community. It is estimated that this item alone can save 45000 water charges a year

Fengxi new city, a pilot area for sponge city construction in Xixian new area, now, rainwater collection ponds and other water storage facilities are all over residential areas, schools, commercial places and public areas, realizing rainwater reuse, which can save about 120million water resources costs a year

in Xixian new area, the green belt is generally "concave" lower than the road surface, and the traditional drainage ditch is replaced by grass planting ditch. These are the "secrets" of sponge city construction. In urban construction, Xixian new area has built a four-level rainwater collection and utilization system, including buildings and residential areas, municipal roads, landscape green spaces and the central rainwater regulation and storage hub, to minimize the impact of urban development and construction on the natural and ecological environment

up to now, Xixian new area has implemented sponge Park of 2.4 million square meters, sponge road of more than 50 kilometers, sponge park green space of 1.4 million square meters, flood control and beach surface restoration of 36 kilometers

"rainwater has changed from the source of waterlogging to the treasure of the city. After the heavy rain, the city will no longer be waterlogged, and the urban heat island effect will be significantly reduced." Liang Xingxing, deputy director of Fengxi new city sponge City Technology Center in Xixian new area, said that the innovative practice of sponge city under the concept of ecological civilization has brought obvious changes to the urban ecology

according to statistics, through the construction of sponge City, the groundwater level in Xixian new area rose by 3.43 meters, the artificial water area increased by about 17 hectares, the water quality of Weihe River and Fenghe river was significantly improved, and the water ecology continued to improve. A new pattern of harmonious coexistence between man, nature and city is taking shape here

a large number of such environment-friendly enterprises are active in Xixian new area. Focusing on the needs of industry, construction and other fields, they promote the innovation of industrial energy conservation, environmental pollution control technology, equipment and services, strengthen the comprehensive utilization of resources, and promote the friction area of 1155 (L) × 50 (b) mm dynamic energy conservation, environmental protection and comprehensive utilization of resources. It is estimated that the industrial revenue will reach 5billion by the end of 2020 and 10billion by 2025