A Potential Technology for Improving the Quality of Lake Water Environments in Cold Zones: A Case Study from Lake Hulun, China DOI Open Access
Hengshuai Gao,

Dongyu Xue,

Wenbao Li

et al.

Sustainability, Journal Year: 2024, Volume and Issue: 16(23), P. 10746 - 10746

Published: Dec. 7, 2024

Lakes in cold zones have common characteristics of long frozen periods and fragile water ecosystems. More more lakes been experiencing quality deterioration due to eutrophication with climate change human activities. Lake Hulun is located the zone northern China, which Cyanobacterial blooms frequently occur. The excessive nutrient input inflowing river lake hydrodynamic condition might be main factors affecting this. To obtain a better understanding effects, loads nutrients from rivers were analyzed. A field test freezing concentration combined microbial activity regulation was carried out at river–lake confluence. results showed following: (1) receives large amount nitrogen phosphorus pollutants runoff every year, these inferior Grade V, greatly increases difficulty ecological purification lakes. (2) control technology has high rate for during unfrozen period. order rates each hydrochemical index TP > TN COD NH4+-N, between 35% 36%. Compared before purification, grade improved V III. (3) composite concentration–microbial general Under low-temperature condition, fluxes reduced by 9.38% 9.36%, respectively. After ice body above II, under layer IV, one higher than original water. This treatment process green, low-energy consumption, low-cost technology. study can provide reference integration demonstration governance resources security arid regions. It beneficial sustainable development lake.

Language: Английский

A Potential Technology for Improving the Quality of Lake Water Environments in Cold Zones: A Case Study from Lake Hulun, China DOI Open Access
Hengshuai Gao,

Dongyu Xue,

Wenbao Li

et al.

Sustainability, Journal Year: 2024, Volume and Issue: 16(23), P. 10746 - 10746

Published: Dec. 7, 2024

Lakes in cold zones have common characteristics of long frozen periods and fragile water ecosystems. More more lakes been experiencing quality deterioration due to eutrophication with climate change human activities. Lake Hulun is located the zone northern China, which Cyanobacterial blooms frequently occur. The excessive nutrient input inflowing river lake hydrodynamic condition might be main factors affecting this. To obtain a better understanding effects, loads nutrients from rivers were analyzed. A field test freezing concentration combined microbial activity regulation was carried out at river–lake confluence. results showed following: (1) receives large amount nitrogen phosphorus pollutants runoff every year, these inferior Grade V, greatly increases difficulty ecological purification lakes. (2) control technology has high rate for during unfrozen period. order rates each hydrochemical index TP > TN COD NH4+-N, between 35% 36%. Compared before purification, grade improved V III. (3) composite concentration–microbial general Under low-temperature condition, fluxes reduced by 9.38% 9.36%, respectively. After ice body above II, under layer IV, one higher than original water. This treatment process green, low-energy consumption, low-cost technology. study can provide reference integration demonstration governance resources security arid regions. It beneficial sustainable development lake.

Language: Английский

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