Recovery, regeneration and sustainable management of spent adsorbents from wastewater treatment streams: A review

One-Step Synthesis of a Mn-Doped Fe2O3/GO Core–Shell Nanocomposite and Its Application for the Adsorption of Levofloxacin in Aqueous Solution

“…Disposal of spent adsorbents containing organic contaminants poses secondary environmental pollution, which could cause ecological and social risks. 66 Therefore, the safe disposal of spent Mn-doped Fe 2 O 3 /GO core–shell nanocomposite could only be done by discharging into the landfills or dumping sites after complete desorption of Lev using ethanol. The ethanol effluent can then be treated with oxidants such as peroxide and ozone to further reduce the concentration of Lev.…”

Multifunctional applications of bamboo crop beyond environmental management: an Indian prospective

“…Biochar is a relatively stable carbonaceous substance synthesize using different feedstocks such as lignocellulosic waste [ 75 , 76 ], municipal waste [ 77 , 78 ], plastic waste [ 16 ] at elevated temperatures (> 400°C) in absence of oxygen supply. Owing to its excellent cation exchange capacity, porosity, high surface area, and surface functional groups, it has been extensively applied in removal of organic and inorganic contaminants [ 79 , 80 ] additives in anaerobic digestion and composting [ 11 , 81 ], and soil amendment [ 78 ].…”

A sustainable approach for the removal methods and analytical determination methods of antiviral drugs from water/wastewater: A review

“…In the adsorption process, various adsorbents such as activated carbons, clays, silica particles, carbon nanotubes, minerals and hydrous metal oxides [113] , [117] , [118] , [119] . One of the main challenges is the sustainable management of spent adsorbents [120] . To solve this problem, regeneration is a promising method that restores the adsorption capabilities of depleted adsorbents by desorbing the pollutants that have already been absorbed.…”

“…Rather than replacing the adsorbents, it is commonly seen to be a less expensive and superior solution [121] . During wastewater treatment, several methods such as sedimentation, filtration, centrifugation, and magnetic separation techniques are utilized to separate and recover wasted adsorbents [120] .…”