On November 24th, the reporter went to the Tianguan Group Experimental Center. The floor space of a meeting room was one size. The tower was only as thick as a bowl, and the largest tank with a three-high-sized small ethanol plant stood in front of the eyes. . According to Qiao Jianyuan, the project leader, the device is small and fully-organized. It simulates the entire process of ethanol production and will provide the most direct technical support for improving the utilization rate of recycled water for ethanol production and drastically reducing or eradicating the pollution of wastewater. With the expansion of production capacity, in the process of producing ethanol by Tianguan Group, the original cooling water treatment device and wastewater treatment system could not meet the process requirements, resulting in low recycling water recycling rate and high sewage treatment costs. In 2008, Tianguan Group and Jiangnan University jointly declared the "863" project and set up a dual-fermentation coupling technology for ethanol biogas. Researchers through the construction of ethanol fermentation, biogas fermentation wastewater recycling process chain, greatly reducing the wastewater discharge and primary water consumption. This set of equipment is between the small-scale experiment and the conversion of production practices. The total investment is 3.75 million yuan. A single fermenter is 1.5 cubic meters. It can produce 3 tons of fuel ethanol. It is mainly used to solve the difficult problems in the production of ethanol, making it Finally can be used for industrial production. Today, the simulated device uses a single packed tower to treat 93% of the ethanol concentration, and after anaerobic treatment, the effluent COD content is below 1800mg/L, basically achieving zero discharge of the sewage. After the technology is used in ethanol production, with an annual capacity of 500,000 tons of fuel ethanol, it will reduce the emission of sewage by 7.5 million tons per year and reduce the water consumption of the process by 6.75 million tons, which can save 57.5 million yuan annually for the enterprise. Brand Bearings,SNR Bearings,HRB Bearing Kelunte Bearing Co., Ltd. , http://www.jnwheelbearings.com