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The amount of waste has exponentially increased throughout the years and, with it, the presence of hazardous pollutants (heavy metals, halogenated organics etc.), that can potentially have adverse effects on humans and other living organisms. There is an unmet need for a more efficient and greener hazardous waste disposal as most of the conventional treatment processes and techniques fail to remove these hazard contaminants.

The following abstracts aim at highlighting the state-of-the-art technologies and approaches adopted to remove hazardous pollutants even at the trace concentrations. These abstracts include also a list of factors, such as technology lock-in and unfavourable regulations, that prevent the application of the so-called waste valorisation, and suggest the exploitation of pyrolysis and co-pyrolysis for an improved eco-friendly disposal of hazardous waste. Finally, a novel stochastic mathematical model is presented as valid resource for an effective hazardous waste management.

Scientific online resources as Pubmed and Google Scholar were used to retrieve articles of interest. To screen for the most advanced researches, articles were selected between the years 2020 and 2022 with the following keywords:
hazardous, chemistry, sustainability.

Emerging waste valorisation techniques to moderate the hazardous impacts, and their path towards sustainability


Xiang Wang1, Chong Li2, Chun Ho Lam3, Karpagam Subramanian3, Zi-Hao Qin3, Jin-Hua Mou3, Mushan Jin3, Shauhrat Singh Chopra3, Vijay Singh4, Yong Sik Ok5, Jianbin Yan2, Hong-Ye Li6, Carol Sze Ki Lin7



  1. Key Laboratory of Eutrophication and Red Tide Prevention of Guangdong Higher Education Institutes, College of Life Science and Technology, Jinan University, Guangzhou 510632, China; School of Energy and Environment, City University of Hong Kong, China.
  2. Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, China.
  3. School of Energy and Environment, City University of Hong Kong, China.
  4. Integrated Bioprocessing Re ...
  5. ...