The result of the withdrawal of the country’s largest "toxic land" that has received much attention from the nation has finally come to fruition. On May 11th, Wuhan City launched the city’s first chemical enterprise land “detoxification†project—the original Wuhan Pesticide Factory contaminated land remediation project at the Hanyang Heshan Plot, costing 232 million yuan. The single project is the largest in China. In addition, the Bureau also conducted investigations and evaluations on 7 blocks of polluted land in the city, and identified 4 sites for soil remediation. Among them, the largest scale of restoration works in the Gukou Chemical District of Yankou County has been completed. According to preliminary statistics, Wuhan City's entire governance and restoration project may cost 4 billion yuan. Heshan area covers an area of ​​296,800 square meters, which is the original plant of Wuhan Pesticide Factory. The pesticide plant took root in this area for decades and moved in 2003 as a whole. In March 2006, Wuhan City listed the land block for sale to Wuhan Sanjiang Aerospace Real Estate Company (hereinafter referred to as Sanjiang Real Estate). In February 2007, the construction party of Sanjiang Real Estate discovered that “this area was poisonous†during the pile foundation operation. Relevant departments confirmed through on-site investigation and after inspection that the plot was contaminated with pesticide chemicals. The soil contains a large number of pesticide chemical components such as BHC and DDT that are currently banned. Their chemical characteristics are most prominent. They are buried deeply. The underground is also difficult to degrade for many years, eventually triggering the country’s largest “toxic land†retreat. In this regard, the Wuhan Municipal Government attached great importance to instructing environmental protection agencies to carry out environmental risk assessment, come up with a repair program, and spent 232 million yuan on the repair of the Heshan site. The restoration works include the excavation and removal of contaminated soil, sewage treatment, soil remediation, site leveling, etc., and will meet the standards for residential land after restoration. Wuhan used to be a heavy chemical industrial city. There were 127 chemical manufacturing companies in the Sanhuan line, including 99 in the mouth area. After the relocation of Yankou Chemicals, a total of 2.7 million square meters of land was evacuated. According to a survey conducted by Wuhan Environmental Protection Bureau, the area of ​​contaminated soil was nearly 840,000 square meters. Mercury, lead, arsenic, and other heavy metals were found to be in excess of the standard, and it may be initially considered part of the area. The soil has also been contaminated by heavy metals. It is understood that the management and repair of the above-mentioned land will completely eliminate chemical company pollution and environmental risks in this area. Most of the land after restoration and disposal will be used as land for real estate and commercial facilities, providing valuable land resources for urban development. The Bureau's Proposal for Rehabilitation Project proposed that soil contaminated soil and groundwater in the Gutian Chemical Zone be restored through soil solidification, leaching, chemical redox and thermal desorption technologies, and it is expected to cost 2.4 billion yuan. In the interview, it was learned that the current Gukou Chemical Zone in Yankou District includes Wuhan Organic Industry Co., Ltd., Wuhan Grand Pharmaceutical Group, Wuhan Linuo Chemical Group, Wuhan Inorganic Salt Chemical Plant, Wuhan Shuangqiang Chemical Co., Ltd., and Wuhan Fangyuan Titanium Dioxide Co., Ltd. All chemical companies, including the company, feel the pressure. They are full of expectations for the Wuhan Chemical Park, which is planned to be produced in Wuhan with an annual output of 800,000 tons of ethylene projects. More attention is paid to the planning details and relocation policies related to the implementation of the relocation of the Gutian Chemical Company. “We strongly agree with the practice of remediation of contaminated land. This is a good thing that benefits the people’s livelihood. If the Central Government or the governments of Hubei and Wuhan capitalize on 'detoxification', we absolutely support and actively cooperate with them, including technically giving priority to tilting. As Wuhan, which is about to relocate, is undoubtedly a second-time start-up, the burden on the company is very heavy, and it is very difficult to install only one employee, especially the number of '4050' personnel, and the limited land compensation provided by the government is ineffective. To do these things, the government can properly raise the land transfer fees and use funds to carry out polluted land remediation projects. It should not be imposed on relocation companies or developers, said Chen Lie, director of Wuhan Organic Industry Co., Ltd.'s office. Li Qing, general manager of Wuhan Shuangqiang Chemical Co., Ltd. also shared the same opinion. He believes that the chemical industry is not only a device type, but also an advantageous technology and a capital-intensive industry. It is very difficult for companies to bear all the funds for relocation, let alone spend money on repairing polluted land. Huang Zhiwei, a professor at the School of Information and Security Engineering at Zhongnan University of Economics and Law, told the reporter that repairing and rehabilitating contaminated land is a national policy that has long been established by the country. Even remote mountainous areas require ecological reclamation. As a central city, Wuhan is necessary to repair the pollution land and prevent the pollution of the land to the health of residents, and is also the foundation of Wuhan to build a resource-saving and environment-friendly society. Huang Zhiwei also believes that the Hanyang Heshan Plot and the Gutian Chemical District will be rehabilitated at a cost of up to 2.632 billion yuan. If the other polluted land is counted, it will cost 4 billion yuan, accounting for 13% of Wuhan's tax revenue in 2010. If it is a government action, it may impose a great burden on the public. If it is technical needs and involves such a large amount of funds, the environmental risk assessment should call domestic experts to review and minimize unnecessary waste.
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