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Rafal Krakowski and Kazimierz Witkowski
This article shows the effect of the addition of effective microorganisms and silver on the exhaust gas composition and fuel consumption. Exhaust emission standards are becoming increasingly stringent, which makes it difficult for engine manufacturers to...
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Altayeb A. Obaid, Elhadi M. Adam, K. Adem Ali and Tamiru A. Abiye
The Vaal Dam catchment, which is the source of potable water for Gauteng province, is characterized by diverse human activities, and the dam encounters significant nutrient input from multiple sources within its catchment. As a result, there has been a r...
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Kun Yang, Jinrui Yao, Yin Huang, Huiyan Ling, Yu Yang, Lin Zhang, Diyun Chen and Yuxian Liu
The river chief system (RCS) is an innovative reform in China for strengthening the management of rivers and lakes. It is an important means of curbing the current severe water-environment situation. However, the policy impact of the RCS is still inconcl...
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Yifeng Yang, Jingshuai Luan, Jing Nie, Xin Zhang, Jiong Du, Gang Zhao, Lei Dong, Yong Fan, He Cui and Yubo Li
In the past, due to improper sludge treatment technology and the absence of treatment standards, some municipal sludge was simply dewatered and then sent to landfills, occupying a significant amount of land and posing a serious threat of secondary pollut...
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Chunjian Lyu, Jianglong Cui, Fangyuan Jin, Xiaojie Li and Yaning Xu
The riparian zone has a proven ability to reduce agricultural nonpoint-source nitrogen pollution. However, prior studies have only assessed nitrification and denitrification and their influencing factors, such as hydrology, climate, vegetation, and soil ...
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