Leachability of toxic elements from solid wastes

Use of waste materials—Bottom Ash and De-Oiled Soya, as potential adsorbents for the removal of Amaranth from aqueous solutions

“…The energy of activation E a , entropy of activation S # and pre-exponential constant (D o ) analogous to the Arrhenius frequency factor are evaluated using Eqs. (9) and (10):…”

“…Its disposal has always been a matter of concern to the station authorities, as the dumped ash is considered highly unsuitable for the agricultural utilization. Though it has been used as a potential adsorbent for the removal of metals [9,10] in previous years, however, its capability to adsorb organic substances [11] is not much exploited so far.…”

Chemical states of trace elements in sewage sludge incineration ash by using x-ray absorption fine structure

“…Although an abundance of doi: 10.2166/wst.2008.025 Q IWA Publishing 2008Water Science & Technology-WST | 57.3 | 2008 literature is available on sewage sludge and sewage sludge amended soils because sewage sludge has been applied to agricultural soils in various countries (Morita & Tsuboi 2000;Lim et al 2006;Walter et al 2006), research on the behaviour of heavy metals in sewage sludge incineration ash is very limited (Krishnan et al 1992;Wong & Ho 2000).…”

Adsorption and desorption studies of a water soluble dye, Quinoline Yellow, using waste materials

“…Bottom ash is an undesired collected material obtained from the thermal power generation plants after combustion of coke and its disposal has always been a matter of concern to station authorities, as the dumped ash is unsuitable for agricultural utilization. In the past it has been used as a potential adsorbent for the removal of metals [24][25][26]; however, its capability to adsorb organic substances [27] is yet to be established. The other adsorbent, de-oiled soya, is a waste material that is processed out from soya-oil industries after all possible nutrients are extracted from the soybeans.…”