公开(公告)号：US09695076B2

公开(公告)日：2017-07-04

申请号：US14930129

申请日：2015-11-02

Applicant: Tongji University

Inventor： Yinguang Chen ,  Xiong Zheng ,  Haining Huang ,  Yinglong Su ,  Mu Li ,  Lijuan Wu

IPC: C02F11/04 ,  C02F1/36 ,  C02F101/30

CPC classification number: C02F11/04 ,  C02F1/36 ,  C02F2101/30 ,  C02F2209/06 ,  C02F2209/36 ,  C02F2303/06

Abstract: A method for reducing release of resistance genes during sludge anaerobic treatment includes controlling concentration of to-be-treated sludge in a concentration tank to be 12-20 g/L by sedimentation under gravity. The concentrated sludge is transferred to a supersonic pre-treatment device to proceed with supersonic pre-treatment. The supersonic pre-treatment is conducted for 5-30 minutes at a power of 0.1-0.5 kW and a frequency of 10-40 kHz. The pre-treated sludge is then transferred to an anaerobic treatment device for anaerobic treatment. The anaerobic treatment is conducted for 4-12 days at a temperature of 20-37° C. The release amount of resistance genes in the residual sludge and the supernatant liquid in the anaerobic treatment device is detected. A feedback dosage of an alkali liquid is fed into the anaerobic treatment device according to the release amount of the resistance genes, controlling a pH value to be 9.0-11.0 during the anaerobic treatment.

公开(公告)号：US20160229727A1

公开(公告)日：2016-08-11

申请号：US14930129

申请日：2015-11-02

Applicant: Tongji University

Inventor： Yinguang Chen ,  Xiong Zheng ,  Haining Huang ,  Yinglong Su ,  Mu Li ,  Lijuan Wu

IPC: C02F11/04

CPC classification number: C02F11/04 ,  C02F1/36 ,  C02F2101/30 ,  C02F2209/06 ,  C02F2209/36 ,  C02F2303/06

Abstract: A method for reducing release of resistance genes during sludge anaerobic treatment includes controlling concentration of to-be-treated sludge in a concentration tank to be 12-20 g/L by sedimentation under gravity. The concentrated sludge is transferred to a supersonic pre-treatment device to proceed with supersonic pre-treatment. The supersonic pre-treatment is conducted for 5-30 minutes at a power of 0.1-0.5 kW and a frequency of 10-40 kHz. The pre-treated sludge is then transferred to an anaerobic treatment device for anaerobic treatment. The anaerobic treatment is conducted for 4-12 days at a temperature of 20-37° C. The release amount of resistance genes in the residual sludge and the supernatant liquid in the anaerobic treatment device is detected. A feedback dosage of an alkali liquid is fed into the anaerobic treatment device according to the release amount of the resistance genes, controlling a pH value to be 9.0-11.0 during the anaerobic treatment.

Abstract translation: 在污泥厌氧处理中减少抗性基因释放的方法包括通过在重力作用下沉降来控制浓缩罐中待处理污泥的浓度为12-20g / L。 将浓缩的污泥转移到超音速预处理装置中以进行超音速预处理。 超声波预处理以0.1-0.5kW的功率和10-40kHz的频率进行5-30分钟。 然后将预处理的污泥转移到厌氧处理装置中进行厌氧处理。 厌氧处理在20-37℃的温度下进行4-12天。检测厌氧处理装置中的残留污泥和上清液中的抗性基因的释放量。 根据抗性基因的释放量，将碱性液体的反馈量输入厌氧处理装置，在厌氧处理期间将pH值控制为9.0〜11.0。