US 11,795,089 B2
Resource treatment system for urine and feces separation and recovery in urine diversion dehydration toilets
Xuefei Zhou, Shanghai (CN); Yalei Zhang, Shanghai (CN); Wenjun Yin, Shanghai (CN); Zhenjiang Yu, Shanghai (CN); Jiabin Chen, Shanghai (CN); Wei Zhang, Shanghai (CN); and Yue Xu, Shanghai (CN)
Assigned to TONGJI UNIVERSITY, Shanghai (CN)
Filed by Tongji University, Shanghai (CN)
Filed on Oct. 30, 2020, as Appl. No. 17/84,647.
Claims priority of application No. 201911058871.8 (CN), filed on Nov. 1, 2019.
Prior Publication US 2021/0130212 A1, May 6, 2021
Int. Cl. C02F 11/02 (2006.01); C12M 1/00 (2006.01); C12M 1/26 (2006.01); C12M 1/12 (2006.01); E04H 1/12 (2006.01); C02F 103/00 (2006.01)
CPC C02F 11/02 (2013.01) [C12M 21/00 (2013.01); C12M 23/02 (2013.01); C12M 33/14 (2013.01); C12M 37/02 (2013.01); E04H 1/1216 (2013.01); C02F 2103/005 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A resource treatment system for urine and feces separation and recovery in urine diversion dehydration toilets, comprising
a urine-faeces division toilet,
a urine and gray water treatment system,
a fermentation and biodegradation fecal system;
wherein
the urine-faeces division toilet is configured to separate and recover urine and feces discharged by users;
the fermentation and biodegradation fecal system is configured to receive the feces separated from the urine-faeces division toilet;
the urine and gray water treatment system comprises an adjusting pool, a microalgae culture device and a metal-based electrogenerated dynamic membrane; wherein
the adjusting pool is configured to receive the urine in the urine-faeces division toilet and domestic sewage, and adjust a urine-to-domestic sewage ratio; the adjusting pool is connected to the microalgae culture device through a first pipe;
the microalgae culture device comprises an outlet pipe, and the microalgae culture device is configured to absorb carbon, nitrogen and phosphorus elements; the outlet pipe of the microalgae culture device is connected to the metal-based electrogenerated dynamic membrane; and
the metal-based electrogenerated dynamic membrane comprises a metal microfiltration membrane, a stainless-steel mesh and a power supply; an anode of the power supply is connected to the metal microfiltration membrane, and a cathode of the power supply is connected to the stainless-steel mesh; the metal microfiltration membrane is configured to collect microalgae,
wherein a pore size of the metal microfiltration membrane is 5 μm or 10 μm, and a membrane surface of the metal microfiltration membrane is modified by polydopamine in-situ self-polymerization;
wherein the urine-faeces division toilet includes a rear urinal, wherein the rear urinal is divided into a rear urine urinal and a feces pool by a partition arranged in the rear urinal; a first urine collection port is arranged at a bottom of the rear urine urinal, and the first urine collection port is connected to a urine storage bucket by a second pipe; a feces bin is arranged under the feces pool; the feces pool is a hollow structure; and
a cover plate is located above the feces pool, and a feces plate is located under the feces pool; the cover plate and the feces plate are configured to rotate around a first rotating shaft, and the cover plate and the feces plate are linked with each other; wherein
when the cover plate is opened, the feces plate located under the feces pool is configured to separate the feces pool from the feces bin;
when the feces plate is opened, the cover plate located above the feces pool is configured to cover an opening of the feces pool.