Advanced Technologies and Process Optimizations of Wastewater Treatment

A special issue of Processes (ISSN 2227-9717). This special issue belongs to the section "Environmental and Green Processes".

Deadline for manuscript submissions: 25 June 2024 | Viewed by 620

Special Issue Editor


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Guest Editor
College of Environmental Science and Engineering, Donghua University, Shanghai 201620, China
Interests: wastewater treatment and recycling; sustainable technologies; green technologies; coagulation
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Special Issue Information

Dear Colleagues,

Water resources have always determined human civilization and development. The prosperity, decline, and migration of many civilizations are all because of water. Therefore, protecting the water resources means protecting the continuation and development of our human civilization.

For the development of new water treatment technologies in the future, we should focus on green, low-carbon treatment technologies, including water resource recycling and recycling of pollution matter as a reusable resource. We should not produce new or toxicological substances in the process of water treatment, such as in the coagulation process or some processes using fixed nanoparticles or recyclable nanoparticles. Moreover, these technologies can be applied rapidly to the actual treatment plants to bring real benefits to people.

For the natural environment, we should try to form a closed-loop state of material in the processes of human production, consumption, reproduction, and re-consumption. In this process, the total material and energy discharged over a long period should always be within the range that the natural environment can accept, so that human beings can truly form a harmonious and unified integration with nature.

Dr. Qunshan Wei
Guest Editor

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Keywords

  • low carbon
  • green technology
  • recycling
  • reusable
  • applicable
  • actual water treatment

Published Papers (1 paper)

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Research

27 pages, 9101 KiB  
Article
Fiber Solidification Treatment of River and Lake Wastewater and Sediments: Deformation Characteristics and Microscopic Mechanism Research
by Aiwu Yang, Jian Xu, Yuhao Gu, Fengjun Li, Xiaoqiang Liu and Jinfang Hou
Processes 2024, 12(5), 876; https://doi.org/10.3390/pr12050876 - 26 Apr 2024
Viewed by 482
Abstract
River and lake dredging projects inevitably produce significant quantities of wastewater and sediment. This accumulation results in dredged soil with high moisture content, characterized by low strength, rendering it unsustainable for use. To facilitate environmentally friendly utilization of wastewater and sediment, solidifying agents [...] Read more.
River and lake dredging projects inevitably produce significant quantities of wastewater and sediment. This accumulation results in dredged soil with high moisture content, characterized by low strength, rendering it unsustainable for use. To facilitate environmentally friendly utilization of wastewater and sediment, solidifying agents and basalt fibers are introduced to solidify the wastewater within the dredged sediment. This process transforms the wastewater, sediment, solidifying agents, and basalt fibers into a novel, strengthened material. This transformation allows for their application as stabilized soil for engineering endeavors. Indoor experiments and scanning electron microscope analyses were performed to examine the deformation characteristics of fiber-stabilized soil and analyze its micro-mechanisms. Research findings suggest that as the curing age increases, the curing agent’s reaction becomes more comprehensive. Fibers have the potential to ameliorate soil damage. The proposed binary-medium model’s applicability and accuracy were validated through the analysis of triaxial test results employing the reinforcement principle. These findings establish a theoretical foundation for the resourceful utilization of wastewater and sediment. Full article
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