Comparison of nickel adsorption from electroplating rinse water by coir pith and modified coir pith

Tendencias en el diseño, construcción y operación de techos verdes para el mejoramiento de la calidad del agua lluvia. Estado del arte.

“…Componentes inorgánicos utilizados en el sustrato como la vermiculita, la perlita y la turba de coco tienen un efecto positivo en la calidad del agua debido a que son conocidos por la absorción de iones metálicos (Ewecharoen et al 2008;Ghassabzadeh et al, 2010;Malamis et al, 2013). A pesar de lo anterior pueden ser una fuente de sedimentos que aumenta la turbiedad y el color en la escorrentía.…”

“…( Buffam et al, 2016;Chen & Kang, 2016;Ewecharoen et al, 2008;Rossatto et al, 2015;Wilkinson et al, 2015) Relación de la vegetación en el funcionamiento de los techos verdes. Se realizaron distintos tipos de montajes con plantas herbáceas, algas y sedum.…”

Reduction of Cadmium Uptake of Rice Plants Using Soil Amendments in High Cadmium Contaminated Soil: A Pot Experiment

“…CPm was made from CP modified with 0.1 NaOH as follows: 300 g of CP was mixed with 3000 mL of 0.1 M NaOH for 2 hours. After treatment with 0.1 M NaOH, the excess NaOH from treated coir pith was washed with tap water until the pH was constant (7.75) [8].…”

“…Biomass raw materials used as amendments in this technique can be from agricultural residues which are abundant such as coir pith and corncob. Moreover, the enhanced adsorption capacity of the amend-ments was also studied focusing on biomass modification [7,8,9].…”

Nickel removal from electroplating waste water using stand-alone and electrically assisted ion exchange processes

“…These conditions highly affect the selection of the treatment process to be used for the removal of nickel from waste water (Popuri et al 2009). Traditional processes usually utilized for nickel removal from waste waters are adsorption (Vieria et al 2010;Popuri et al 2009;Kandah and Meunier 2007;Li and Champagne 2009;Aguilar-Gonzalez et al 2010;Ewecharoen et al 2008), bio-sorption (Ozturk 2007Bhatnagar and Minocha 2010), precipitation (Forstner and Wittman 1979), electrochemical methods (Dermentzis 2010;Akbal and Camci 2011;Kabadasli et al 2009;Pospisil et al 2008;Njau et al 2000), filtration (Katsou et al 2010;Borbely and Nagy 2009;Karate and Marathe 2008;Channarong et al 2010), electroflocculation-filtration hybrid system (Sun et al 2009), liquid-liquid extraction (Gonzalez et al 2010) and ion exchange (Rengaraj et al 2001;Alyuz and Veli 2009;Halle et al 1982). In fact, ion exchange is a well-known technology that we have utilized in several difficult separation tasks up to isotope separation (Ismail et al 1997a(Ismail et al , 1997b(Ismail et al , 2002Fujii et al 1998;Nogami et al 2001).…”