A pioneer company in this field, Heijing Bioengineering Co. in Shanghai, uses soil sub-section repair methods to set up greenhouses on the restored land, planting more than 10 different kinds of plants such as alfalfa and wheat blueberry, and using different types of Trichoderma fungus stdrains and organic matter repair materials during planting. An official report concluded that after treatment the content of phthalic acid and aniline in the contaminated soil after the technology has dropped dramatically, and the repaired soil meets the Grade II standard of the national soil environmental quality standard. The cost of bioremediation is estimated at about a quarter of that of traditional physical and chemical repair technologies and does not lead to „secondary pollution“.
China Bio news release, December 5, 2017