Results 21 to 30 of about 1,666 (179)

Evaluation of pre-magnetization on the dewaterability of waste activated sludge treated by ozonation

Water Cycle, 2023
The dewaterability of waste activated sludge (WAS) plays the key role in sludge dewatering in wastewater treatment plants. The magnetic field as a source of clean energy has been reported to be able to cause changes in sludge properties and to enhance ...
Jianxin Zhang, Chang Chen, Ning Ding
doaj   +1 more source

Dewatering of Sewage Sludge with Vacuum Assisted Sludge Dewatering Beds

Water Science and Technology, 1992
The “Rapid Sludge Dewatering System (RSDS)”, in which the sludge is dewatered by way of vacuum supported sludge drying beds, was tested for performance, efficiency and applicability. Generally, the RSD-System can be regarded as an alternative to other sludge dewatering systems, especially for small purification plants, for agricultural use and ...
Ch. Salzer, R. Haberl
openaire   +1 more source

Optimization of thermal–alkaline pretreatment for dewatering of excess sludge followed by thermal/persulfate oxidation for the elimination of extracellular ARGs in TAP-treated filtrate

Water Science and Technology, 2023
This study evaluated the dewatering of excess sludge and the removal of extracellular antibiotic-resistant genes (eARGs) from the treated filtrate by thermal–alkaline pretreatment (TAP) and thermal/persulfate (PS).
Pengcheng Yao, Aiju You
doaj   +1 more source

Research on Dewatering Ability of Municipal Sludge under the Treatment of Coupled Acid and Microwave

Geofluids, 2021
Municipal sludge is a by-product of urban sewage treatment; it has high water content and contains many hydrophilic extracellular polymeric substances (EPS). It is difficult to achieve deep dewatering of sludge.
Xudong Zhang, Peng Ye, Yajun Wu, Zhen Guo, Yuan Huang, Xingtao Zhang, Yuncong Sun, Haiqiang Zhang   +7 more
doaj   +1 more source

Research advance and application exploration of sludge dewatering flocculants

Gongye shui chuli
Activated sludge process is one of the most widely used processes for wastewater biological treatment. As the main by-product of activated sludge process，sludge with the high moisture content easily results in various problems such as the difficult ...
ZHANG Jie, LAI Yue, YANG Chaohui, LIN Hao, ZHOU Shungui, YE Jie, LIU Changgeng   +6 more
doaj   +1 more source

Economic and environmental implications of the development of UASB reactors in Mexico for sustainable industrial wastewater treatment

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract The objective of this work is to demonstrate that the inclusion of an up‐flow anaerobic sludge bed (UASB reactor) within an industrial wastewater treatment plant reduces the plant's investment and operating costs compared to a system based solely on conventional complete‐mix activated sludge (CMAS), operating under the same design principles ...
Juan Manuel Morgan‐Sagastume, Adalberto Noyola   +1 more
wiley   +1 more source

Carbon‐Negative Upcycling of Sewage Sludge into Superiorly Stable Gel Via Liquid‐Phase Utilization Strategy for Water‐Remediation

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This work developed a low‐temperature sludge hydrothermal coupled with gel crosslinking strategy which could upgrade the waste liquid generated from sewage sludge hydrothermal treatment into the hydrothermal‐liquid‐gel. The inventive hydrothermal‐liquid‐gel exhibited the enhanced pollutant removal capability, high synthetic stability, and superior ...
Zifan Liu, Sunxinyi Wang, Lingxiao Lu, Weiguo Zhang, Qiang Zheng, Cailiang Yue, Huimin Chang, Xiaohui Lu, Ming Xu, Zhi Qian, Qing Zhou, Fuqiang Liu, Baoshan Xing   +12 more
wiley   +1 more source

Biochar and Hydrochar as Soil‐Based Carbon Sequestration Technologies: Implications for Greenhouse Gas Mitigation

Journal of Plant Nutrition and Soil Science, EarlyView.
ABSTRACT Biochar and hydrochar have emerged as promising carbon‐based amendments for enhancing soil carbon sequestration and mitigating greenhouse gas emissions. This review synthesizes and critically compares current knowledge on the production technologies, physicochemical properties, stabilization mechanisms, carbon persistence, and life‐cycle ...
João Marcos Rodrigues dos Santos
wiley   +1 more source

Advancements and Challenges in Second‐ and Third‐Generation Biofuels: A Comparative Analysis of Lignocellulosic and Algal Feedstocks

Safety Science and Technology, EarlyView.
ABSTRACT Advanced biofuels derived from nonfood biomass are increasingly recognized as strategic components of low‐carbon energy systems, particularly for sectors where direct electrification remains difficult. Second‐generation biofuels from lignocellulosic residues and third‐generation biofuels from algal and aquatic biomass offer complementary ...
Majid Saidi, Amirreza Ahmadbozorgi
wiley   +1 more source

Iron⁃calcium⁃biochar enhanced sludge deep dewatering and sludge⁃based biochar preparation

能源环境保护
Sludge dewatering is a crucial step in sludge disposal and resource recovery. While FeCl3 is commonly used to enhance sludge dewatering, it is ineffective for some residual sludges, resulting in a high moisture content in the sludge cake that fails to ...
JIAO Hongming, FU Liang*, ZHOU Yingying, WANG Xurong, ZHANG Leilei, Gao Yonglin, ZHOU Dandan   +6 more
doaj   +1 more source