The transformation of "hogwash fat" into "biodiesel" is a new scientific and technological project, which has been reported by many domestic and foreign media such as CCTV. The chemical name of "biodiesel" is "fatty acid methyl ester", which can be used as both chemical raw materials and automobile fuel. Automobile exhaust emission using it is more environmentally friendly than using fossil diesel. Every 100 ton of "gutter oil" can be converted into about 90 tons of "biodiesel", and the technology tends to be mature, and no harmful substances are produced in production.
Using a unified recycling truck, the recycled swill is poured into the primary purification tank, heated to 80 degrees, and the residue is taken out. Then pump the oil-water mixture into the secondary purification tank, heat it to 100 degree, precipitate for a certain time, and then enter the tertiary purification tank. After repeated precipitation and purification, industrial oil is produced, which can be exported centrally. In view of the wastewater generated in the processing process, it is disinfected with bleaching powder after oil separation and precipitation, and then discharged into the sewage treatment center of BBK slaughterhouse. The waste residue produced by precipitation can be used as fertilizer after filter pressing and crushing; After the recovered hogwash oil passes through the oil-water separator, it can basically meet the industrial grease standard and does not need to be reprocessed. Through the above ways, the harmless treatment of hogwash fat can be realized to the maximum extent.
Refining biodiesel requires a lot of equipment, both national and non-standard. The main equipment includes reaction tank, raw material tank, auxiliary material tank, various material delivery pumps, valves, electrical instruments, distillation tower, methanol purification equipment, sewage equipment, waste gas treatment equipment, boiler equipment, etc. These are general chemical equipment, which can be purchased separately according to their own production process and then assembled according to the process. If someone else provides complete sets of equipment, it will be much more expensive and unnecessary.