A review of phenol removal from wastewater by adsorption
| Main Authors: | Sayak Chakravorty, Rajat Chatterjee, Chanchal Majumder |
|---|---|
| Format: | Article Journal |
| Bahasa: | eng |
| Terbitan: |
, 2020
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| Subjects: | |
| Online Access: |
https://zenodo.org/record/5656238 |
Daftar Isi:
- Department of Civil Engineering, Indian Institute of Engineering Science and Technology, Shibpur, Howrah-711 103, West Bengal, India E-mail: sayak01011997@gmail.com Manuscript received online 09 December 2020, accepted 29 December 2020 Phenolic compounds are highly toxic to humans, animals and aquatic ecosystems. Industrial effluents contaminated with phenols pollute surface and ground water resources if not managed and treated properly before discharge. Conventional physicochemical treatment processes like adsorption, chemical and electrochemical oxidation, distillation etc. provide high removal efficiencies as compared to advanced treatments like ozonation, UV treatment and Fenton process, which have high energy costs. Thus, over the years physicochemical processes have accentuated various researchers in the field of phenolics treatment. This review summarizes the development of different adsorption techniques developed for phenol removal over the years. Moreover, the chemical modifications of the adsorbent using functionalization, impregnation with nanoparticles or substitution with low cost biosorbents for cost effectiveness has been reassessed and compared. Applicability of micro-carbon and nano-carbon materials (like graphene oxide) and the dependence of the adsorption rate on pH, adsorbent dosage, temperature is also reflected upon.