Tongji University

Shuxian Chen

Xiaohu Dai

Yu Hua

Chen Cai

Huiping Li

Qi Song

Junwei Yang

An integrated system for anaerobic digestion of organic solid waste, including a continuous stirred-tank reactor, a micro-voltage- and conductive material-enhanced reactor, and a micro-aeration and inert solid waste separation integrated reactor. The micro-electrolysis reactor includes a plate cover, a cylindrical tank body and two column bases. The plate cover is provided with a direct-current (DC) regulated power supply to apply a micro voltage. The cylindrical tank body is provided with a carbon fiber felt and a graphite rod as electrodes, on which electroactive anaerobic bacteria are distributed. Multiple iron-carbon layers are arranged in the tank body to optimize the interspecies electron transfer.

Integrated system for anaerobic digestion of organic solid waste

A system for high-value utilization of organic solid waste includes an anaerobic digestion unit, a biogas measurement and collection unit and a methane purification and liquefaction unit. The anaerobic digestion unit includes an organic solid waste pretreatment system and an anaerobic digestion device. The biogas measurement and collection unit includes a gas flow meter and a high-pressure biogas collection device. The methane purification and liquefaction unit includes a high-pressure separation tank, a liquefaction pretreatment system, a heavy hydrocarbon and benzene removal device, a two-stage rectification system, a low-temperature pressure liquid storage tank device and a buffer storage tank. The organic solid waste undergoes an anaerobic digestion treatment to produce methane followed by collection, purification and liquefaction.

System for high-value utilization of organic solid waste

Provided is a method for evaluating a pretreatment effect for organic solid waste based on fractal dimension, relating to biological conversion of organic solid waste. Samples of the organic solid waste are collected, and dried and broken up to obtain dried samples. The mixtures obtained are analyzed using a laser particle size analyzer, so as to measure a wave vector Q and a scattering intensity I of each of the mixtures. According to a fractal theory, the wave vector Q and the scattering intensity I obtained are analyzed using a data processing software to obtain a two-dimensional fractal dimension Dof each of the samples. Based on data from documents and experiments, a total organic carbon or an apparent activated energy is evaluated, so as to evaluate the pretreatment effects of samples of the organic solid waste.

Growing community of inventors

Shanghai, China

Shuxian Chen