Liu X.Lee D.-J.2019-05-132019-05-13201409608524https://scholars.lib.ntu.edu.tw/handle/123456789/407729This meta-analysis evaluates adsorption studies that report thermodynamic parameters for heavy metals and dyes from wastewaters. The adsorbents were derived from agricultural waste, industrial wastes, inorganic particulates, or some natural products. The adsorption mechanisms, derivation of thermodynamic relationships, and possible flaws made in such evaluation are discussed. This analysis shows that conclusions from the examined standard enthalpy and entropy changes are highly contestable. The reason for this flaw may be the poor physical structure of adsorbents tested, such that pore transport controlled the solute flux, leaving a surface reaction process near equilibrium. © 2013 Elsevier Ltd.Adsorption; Dye; Equilibrium; Heavy metal; Thermodynamics[SDGs]SDG6Agricultural robots; Agricultural wastes; Dyeing; Dyes; Heavy metals; Industrial wastes; Phase equilibria; Surface reactions; Thermodynamics; Adsorption equilibria; Adsorption mechanism; Adsorption studies; Inorganic particulates; Physical structures; Standard enthalpy; Thermodynamic parameter; Thermodynamic relationships; Adsorption; copper ion; dye; heavy metal; methylene blue; coloring agent; heavy metal; waste water; water pollutant; adsorption; biotechnology; dye; enthalpy; entropy; equilibrium; heavy metal; meta-analysis; sewage treatment; solute transport; thermodynamics; adsorption; agricultural waste; article; enthalpy; entropy; equilibrium constant; industrial waste; meta analysis (topic); priority journal; thermodynamics; waste water; adsorption; chemistry; isolation and purification; thermodynamics; waste water; water pollutant; Adsorption; Coloring Agents; Metals, Heavy; Thermodynamics; Waste Water; Water Pollutants, Chemicaljournal article10.1016/j.biortech.2013.12.0532-s2.0-84899879600https://www.scopus.com/inward/record.uri?eid=2-s2.0-84899879600&doi=10.1016%2fj.biortech.2013.12.053&partnerID=40&md5=ca48c38dd728909e6dd77ea2912482e2