Activated Sludge Combined with Pervious Concrete Micro-Ecosystem for Runoff Rainwater Collection and Pollutant Purification DOI Creative Commons
Yongsheng Zhang,

Xuechen Jia,

Pengfei Yuan

et al.

Toxics, Journal Year: 2024, Volume and Issue: 12(12), P. 838 - 838

Published: Nov. 22, 2024

This study investigated the purification of pollutants in runoff rainwater by constructing a micro-ecosystem using waste-activated sludge (WAS) and riverbed (RBS) as inoculums combination with pervious concrete. The research results showed that best hydraulic retention time (HRT) was 9 h. COD ammonia nitrogen (NH4+-N) removal ecosystem (WASE) 62.67% 71.21%, respectively, while (RBSE) NH4+-N percentages 46.05% 66.55%, respectively. analysis genetic metabolism microbial genes system microbially enhanced extensive diverse populations. At phylum level, microorganisms responsible for degrading organic matter were mainly Firmicutes Actinobacteriota. genus Trichococcus dominant WASE, Dietzia, norank_f__Sporomusaceae norank_f__norank_o__norank_c__BRH-c20a genera central bacterial populations RBSE. proliferation phylum-level bacteria WASE relatively large, genus-level demonstrated better efficiency pollutants. overall effect than application analyses is capable effectively accepting treating all rainfall below rainstorm levels at near-full under optimal conditions. innovatively used wastewater plant combined concrete to construct remove achieved pollutant comparable modified adsorbent materials. An effective method collection treatment urban provided.

Language: Английский

Study on the effect of pore structure changes induced by freeze-thaw-wetting-drying cycles on water retention characteristics of compacted loess DOI
Zhiyong Zhang, Weixing Bao, Lei Tian

et al.

Construction and Building Materials, Journal Year: 2024, Volume and Issue: 455, P. 139213 - 139213

Published: Nov. 18, 2024

Language: Английский

Citations

3
Activated Sludge Combined with Pervious Concrete Micro-Ecosystem for Runoff Rainwater Collection and Pollutant Purification DOI Creative Commons
Yongsheng Zhang,

Xuechen Jia,

Pengfei Yuan

et al.

Toxics, Journal Year: 2024, Volume and Issue: 12(12), P. 838 - 838

Published: Nov. 22, 2024

This study investigated the purification of pollutants in runoff rainwater by constructing a micro-ecosystem using waste-activated sludge (WAS) and riverbed (RBS) as inoculums combination with pervious concrete. The research results showed that best hydraulic retention time (HRT) was 9 h. COD ammonia nitrogen (NH4+-N) removal ecosystem (WASE) 62.67% 71.21%, respectively, while (RBSE) NH4+-N percentages 46.05% 66.55%, respectively. analysis genetic metabolism microbial genes system microbially enhanced extensive diverse populations. At phylum level, microorganisms responsible for degrading organic matter were mainly Firmicutes Actinobacteriota. genus Trichococcus dominant WASE, Dietzia, norank_f__Sporomusaceae norank_f__norank_o__norank_c__BRH-c20a genera central bacterial populations RBSE. proliferation phylum-level bacteria WASE relatively large, genus-level demonstrated better efficiency pollutants. overall effect than application analyses is capable effectively accepting treating all rainfall below rainstorm levels at near-full under optimal conditions. innovatively used wastewater plant combined concrete to construct remove achieved pollutant comparable modified adsorbent materials. An effective method collection treatment urban provided.

Language: Английский

Citations

0