caa a22 4500 605500193 CHVBK 20210128100554.0 cr unu---uuuuu 210128e20150401xx s 000 0 eng 10.1007/s00253-015-6401-z doi (NATIONALLICENCE)springer-10.1007/s00253-015-6401-z Enhanced dewatering of sludge with the composite of bioflocculant MBFGA1 and P(AM-DMC) as a conditioner [Elektronische Daten] [Junyuan Guo, Lichao Nengzi, Jing Zhao, Yuzhe Zhang] Bioflocculant MBFGA1 was investigated to be used as a conditioner for sludge dewatering, and the response surface methodology (RSM) was employed to study the enhancing performance of the dewatering process by the composite of MBFGA1 and poly(acrylamide [2-(methacryloyloxy)ethyl]-trimethylammonium chloride) (P(AM-DMC)). Results showed that dry solids (DS) and specific resistance to filtration (SRF) of sludge treated by MBFGA1 alone appeared as 21.7% and 3.6 × 1012mkg−1, respectively, which were much better than FeCl3, Al2(SO4)3, and polyaluminum chloride (PAC), but poorer than P(AM-DMC) in sludge dewatering. Apart from this, the optimized conditioning process for improving the dewaterability of the sludge conditioned by the composite is MBFGA1 of 1.4gL−1, P(AM-DMC) of 0.13gL−1, CaCl2 of 56.1mgL−1, pH value of 7.5, and agitation speed of 149rpm. Under this optimal condition, DS and SRF appeared as 29.9% and 2.2 × 1012mkg−1, respectively. Thus, it is feasible and meaningful to enhance the dewaterability of the sludge by the compound uses of MBFGA1 and P(AM-DMC). Springer-Verlag Berlin Heidelberg, 2015 Bioflocculant MBFGA1 nationallicence P(AM-DMC) nationallicence Sludge dewatering nationallicence Conditioner nationallicence Response surface methodology (RSM) nationallicence Guo Junyuan College of Resources and Environment, Chengdu University of Information Technology, 610225, Chengdu, Sichuan, China aut Nengzi Lichao College of Resources and Environment, Chengdu University of Information Technology, 610225, Chengdu, Sichuan, China aut Zhao Jing College of Resources and Environment, Chengdu University of Information Technology, 610225, Chengdu, Sichuan, China aut Zhang Yuzhe College of Resources and Environment, Chengdu University of Information Technology, 610225, Chengdu, Sichuan, China aut Applied Microbiology and Biotechnology Springer Berlin Heidelberg 99/7(2015-04-01), 2989-2998 0175-7598 99:7<2989 2015 99 253 https://doi.org/10.1007/s00253-015-6401-z text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s00253-015-6401-z text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Guo Junyuan College of Resources and Environment, Chengdu University of Information Technology, 610225, Chengdu, Sichuan, China aut NATIONALLICENCE 700 1- Nengzi Lichao College of Resources and Environment, Chengdu University of Information Technology, 610225, Chengdu, Sichuan, China aut NATIONALLICENCE 700 1- Zhao Jing College of Resources and Environment, Chengdu University of Information Technology, 610225, Chengdu, Sichuan, China aut NATIONALLICENCE 700 1- Zhang Yuzhe College of Resources and Environment, Chengdu University of Information Technology, 610225, Chengdu, Sichuan, China aut NATIONALLICENCE 773 0- Applied Microbiology and Biotechnology Springer Berlin Heidelberg 99/7(2015-04-01), 2989-2998 0175-7598 99:7<2989 2015 99 253