"The soil repair market is a big cake, but there are not many that can be cut off." Although there are currently over 1,000 enterprises engaged in environmental remediation in our country, there are not many enterprises that have really done projects and have achieved satisfactory results. A market cultivation also needs process. "Zhongke Dingshi Environmental Engineering Co., Ltd. (hereinafter referred to as" Zhonggu Ding ") chief engineer Liu Shuang recently in the China Environmental Protection Industry Association Heavy Metal Pollution Prevention and Remediation Special Zone Regional Salon Three) on the case. This reporter learned that with the growing emphasis on national soil remediation and "soil ten" and other related policies introduced, many engaged in soil remediation companies are optimistic about this market. However, how to accumulate technology companies? How to accumulate experience from engineering practice? What other related measures in urgent need of improvement? At this salon, the participants agreed that in addition to the need for soil remediation standards, enterprises also hope that the introduction of the appropriate regulatory Norms and engineering construction norms, at the same time, in the technical reserve, we should focus on its own research and development, some of the technology and equipment in urgent need of localization. Technology, technology, or technology The introduction of technology is not enough localization, often acclimatized, it is difficult to meet the domestic demand for soil remediation; a single restoration technology will diversify the technology development, repair mode will change from soil and groundwater management to common governance change How to enable enterprises to be invincible in the industry, get good development has always been the concern of business operators. It is understood that in 2007 ~ 2014, the number of remediation of contaminated sites in China significantly increased, of which contaminated sites of organic pollutants accounted for 50% of the remediation projects. This reporter has learned that at present our site repair has formed four major mainstream technologies, including cement kiln co-disposal, curing stabilization, chemical oxidation, thermal desorption technology. Remediation of organic pollutants include cement kiln co-disposal, chemical oxidation, thermal desorption, gas extraction technology. Due to the late start of soil remediation in our country, the above technologies mainly rely on the introduction of foreign countries. However, due to inadequate localization, the application of foreign technology in China often appears "acclimatized" problem, it is difficult to meet the domestic demand for soil remediation. "Now no domestic enterprise can say that the applied technology is developed by enterprises themselves." Insiders said that the industry is in its infancy, and is technically heavily dependent on foreign countries. However, the management of soil pollution and soil remediation are very obvious areas. The soil management methods in the south are not applicable to the north. Therefore, the localization of foreign technologies is crucial. "Because of this, when many environmental giants in foreign countries come to China to open up soil remediation markets, most of them choose technical cooperation with domestic enterprises." In response, Professor Liu Yangsheng, a professor at the School of Environmental Science and Engineering at Peking University, said that seasonal differences in the southern and northern regions of our country will have a huge impact on the application of restoration technologies. At the same time, there are differences in the soil conditions in the north and south. The soil pH in the south is 5.0-6.0 and that in the north is 8.5-9.5. In the soil with the pH value of 8.5-9.5, almost all the elements such as lead and zinc are passivated and the soil content is negligible However, these heavy metals in plants still exceed the standard. Therefore, so many differences require that the application of technology be adapted to local conditions. At the same time, business representatives also make forecasts and prospects for future technological developments. "Single technology to integrated technology development, repair mode began to diversify." Liu Shuang said that in 2007, Beijing Red Lion Paint Factory remediation of contaminated landfill and cement kiln co-processing technology used in the 2011 Beijing Chemical Industry II Plant soil remediation, the main use of normal temperature desorption and cement kiln co-disposal; 2013 Beijing Coking Plant repair project is the use of low-temperature thermal desorption and high temperature thermal desorption equipment. Last year's Zhejiang Ningbo Pesticide Factory project, has begun to use in situ thermal desorption, ectopic thermal desorption, in situ chemical oxidation and other technologies. Liu Shuang also stressed that, in addition to the technical complex, the restoration model will change from the separate management of soil and groundwater to joint management. For example, Beijing Chemical Plant No. 2 project is soil and groundwater is managed separately, and to Beijing coking plant project, have adopted the "soil and water" common governance model. Cooler And Warmer Box,Warmer Box,Cooler Box ,Electric Cool Box Yuyao Veedai Electrical Appliance Co., Ltd , https://www.weideea.com