Scholarlink

The commonly practiced open dumping of municipal solid waste is an environmental threat, yet these waste are valuable resources that can be recycled. This study aimed to recover biodegradable plastic waste as a part of municipal solid residues into biochar to treat industrial wastewater containing high organic load. This industrial wastewater had oil and grease (O&G) of 800 mg/L, chemical oxygen demand (COD) of 23,000 mg/L, and turbidity of 885 NTU. Box-Behnken design (BBD) was employed to investigate the effects of biochar dosage, contact time, and pH on the adsorption of the monitored pollutants. The optimal operating conditions were biochar dosage of 3.81 g/L, contact time of 102 min, and pH of 7.8, removing 56.50 ± 1.13% of O&G, COD of 53.13 ± 2.21%, and turbidity of 75.73 ± 3.43%. The response surface methodology (RSM) modeling results with R2 higher than 0.95, showed that the adsorption process was highly influenced by adsorbent dosage followed by medium pH and contact time. The proposed adsorption process could achieve six sustainable development goals (SDGs) related to pollution reduction, environmental conservation, and human health protection.

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Removal of Organic Pollutants from Industrial Wastewater Using Biochar from Biodegradable Plastic: Sustainable Approach

  • 会议论文

  • 发表日期：

    2025年

查看全文
  • Robert Senga,
  • Amal Abdelhaleem,
  • Manabu Fujii,
  • Mahmoud Nasr

摘要

The commonly practiced open dumping of municipal solid waste is an environmental threat, yet these waste are valuable resources that can be recycled. This study aimed to recover biodegradable plastic waste as a part of municipal solid residues into biochar to treat industrial wastewater containing high organic load. This industrial wastewater had oil and grease (O&G) of 800 mg/L, chemical oxygen demand (COD) of 23,000 mg/L, and turbidity of 885 NTU. Box-Behnken design (BBD) was employed to investigate the effects of biochar dosage, contact time, and pH on the adsorption of the monitored pollutants. The optimal operating conditions were biochar dosage of 3.81 g/L, contact time of 102 min, and pH of 7.8, removing 56.50 ± 1.13% of O&G, COD of 53.13 ± 2.21%, and turbidity of 75.73 ± 3.43%. The response surface methodology (RSM) modeling results with R2 higher than 0.95, showed that the adsorption process was highly influenced by adsorbent dosage followed by medium pH and contact time. The proposed adsorption process could achieve six sustainable development goals (SDGs) related to pollution reduction, environmental conservation, and human health protection.