China is a major producer of kitchen waste oil and grease, only in Shanghai, there are about 150 tons of waste oil and grease every day. In the past, the disposal of "gutter oil", catering enterprises need to pay the environmental protection department, the oil to the "regular army" enthusiasm is not high, many biodiesel processing enterprises are also in the oil collection, insufficient capacity of the state.

"Due to the lack of raw materials, small market, the policy does not support the torment, China's biodiesel industry has been struggling for many years." Zheng Shusong, deputy secretary-general of the Shanghai Food Safety Work Federation, said, and because of the past sales market door is closed, the high cost of production led to the inversion of business costs. "Can't eat enough" "can't sell" **** exist, making it difficult for disposal companies to survive.

Chinese Petrochemical Petrochemical Research Institute Professor Lin Jianmin also said that this phenomenon is prevalent in many places, Anhui, Yunnan and Hainan, part of the region have formulated the corresponding regulations and standards, to promote the demonstration of the application of biodiesel in the local.

The solution to "not enough to eat", the need for policy to ensure that catering enterprises from the past to pay for the disposal, the change to "sell oil" to make money. For example, Shanghai explored the "gutter oil" collection, transportation, processing, transfer, with the whole closed-loop supervision model: catering enterprises to install oil-water separator, grease is "locked"; collection and transportation of unified vehicles and install GPS, unified license on duty; by qualified enterprises will be its Disposal of the production of biodiesel.

It is reported that Shanghai's kitchen waste oil and grease collection has been increased from more than 10 tons per day before 2011 to an average of more than 100 tons per day in 2016, basically realizing the "should be collected as much as possible," the requirements of resource utilization.

To solve the problem of "not being able to sell", it is necessary to develop a mechanism to avoid the situation in which the disposal enterprise sells one ton and loses one ton. Many places have introduced relevant regulations to industry subsidies and tax incentives to ensure that the kitchen waste oil and grease collection and disposal system continues to operate in an orderly manner.

Shanghai Zhongqi Environmental Protection is the designated "gutter oil" disposal enterprise in Shanghai. Zhang Xuewang, chairman of the board of directors, said that now each ton of oil collection costs 3,600 yuan, processing costs of 2,000 yuan. In the past, biodiesel can only be sold to the boiler room and other value-added customers, a ton of loss of nearly 1,000 yuan. "Now into the Sinopec terminal sales, added value at once; coupled with the subsidy mechanism, solved the enterprise's urgent needs."