BioTech Encyclopedia

Materials researched for water treatment

lab Algae 2022

Chitosan-clay-algae dye adsorbent

A chitosan/sepiolite clay/algae biocomposite for removing dyes from water.

Built / tested: adsorbents

As reported in: Zain, Abdulhameed, Jawad et al. (2022). A pH-Sensitive Surface of Chitosan/Sepiolite Clay/Algae Biocomposite for the Removal of Malachite Green and Remazol Brilliant Blue R Dyes: Optimization and Adsorption Mechanism Study. Journal of Polymers and the Environment. doi:10.1007/s10924-022-02614-y

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review Chitin & chitosan 2021

Chitosan nanocomposites in flow-through filters

A review of chitosan nanocomposites used in continuous-flow adsorption columns for water treatment.

As reported in: Leudjo Taka, Klink, Yangkou Mbianda et al. (2021). Chitosan nanocomposites for water treatment by fixed-bed continuous flow column adsorption: A review. Carbohydrate Polymers. doi:10.1016/j.carbpol.2020.117398

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lab Clay 2020

Low-cost bentonite filter membrane

Spin-coated a thin bentonite clay layer onto a porous perlite ceramic support to make a low-cost ultrafiltration membrane, then tested it for removing dissolved dyes from water.

Built / tested: ceramic membranes

As reported in: Saja, Bouazizi, Achiou et al. (2020). Fabrication of low-cost ceramic ultrafiltration membrane made from bentonite clay and its application for soluble dyes removal. Journal of the European Ceramic Society. doi:10.1016/j.jeurceramsoc.2020.01.057

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review Biochar 2019

Biochar for organic pollutants

A review of adsorption, regeneration and engineering applications of biochar for removing organic pollutants.

As reported in: Dai, Zhang, Xing et al. (2019). The adsorption, regeneration and engineering applications of biochar for removal organic pollutants: A review. Chemosphere. doi:10.1016/j.chemosphere.2019.01.161

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lab Diatomite 2019

Lanthanum-diatomite for phosphate

Lanthanum oxide-modified diatomite as an adsorbent for removing low-concentration phosphate from treated wastewater.

Built / tested: adsorbents

As reported in: Wu, Li, Yang et al. (2019). Hydrated lanthanum oxide-modified diatomite as highly efficient adsorbent for low-concentration phosphate removal from secondary effluents. Journal of Environmental Management. doi:10.1016/j.jenvman.2018.10.059

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lab Chitin & chitosan 2018

Column filters for arsenic-contaminated water

Studied operating settings for a packed column of chitosan material used to remove arsenate from water.

Built / tested: fixed-bed adsorption columns

As reported in: Brion-Roby, Gagnon, Deschênes et al. (2018). Investigation of fixed bed adsorption column operation parameters using a chitosan material for treatment of arsenate contaminated water. Journal of Environmental Chemical Engineering. doi:10.1016/j.jece.2017.12.032

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lab Sponge spicules & spongin 2018

Enzymes on spongin scaffolds

Immobilised Trametes versicolor laccase on natural bath sponge (spongin) scaffolds to biodegrade bisphenols.

Built / tested: biocatalytic scaffolds

As reported in: Zdarta, Antecka, Frankowski et al. (2018). The effect of operational parameters on the biodegradation of bisphenols by Trametes versicolor laccase immobilized on Hippospongia communis spongin scaffolds. Science of The Total Environment. doi:10.1016/j.scitotenv.2017.09.213

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review Clay 2017

Heavy-metal capture by clay minerals

A review of clay minerals used to adsorb heavy metals from water.

As reported in: Uddin (2017). A review on the adsorption of heavy metals by clay minerals, with special focus on the past decade. Chemical Engineering Journal. doi:10.1016/j.cej.2016.09.029

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lab Coconut coir & shell 2017

Coconut-shell carbon for dyes

Kinetics and equilibrium of textile dye adsorption on coconut shell activated carbon.

Built / tested: activated carbon

As reported in: Aljeboree, Alshirifi, Alkaim (2017). Kinetics and equilibrium study for the adsorption of textile dyes on coconut shell activated carbon. Arabian Journal of Chemistry. doi:10.1016/j.arabjc.2014.01.020

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review Biochar 2015

Biochar for heavy metals

A review of biochar as a low-cost adsorbent for heavy metals in water.

As reported in: Inyang, Gao, Yao et al. (2015). A review of biochar as a low-cost adsorbent for aqueous heavy metal removal. Critical Reviews in Environmental Science and Technology. doi:10.1080/10643389.2015.1096880

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lab Clay 2015

Ceramic filters from local Cameroonian clay

Produced microfiltration membranes from locally sourced clay for water treatment.

Built / tested: microfiltration membranes

As reported in: Belibi Belibi, Nguemtchouin, Rivallin et al. (2015). Microfiltration ceramic membranes from local Cameroonian clay applicable to water treatment. Ceramics International. doi:10.1016/j.ceramint.2014.10.090

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review Algae 2013

Nutrient recovery by microalgae

Status and prospects of recovering nutrients from wastewater with microalgae.

As reported in: Cai, Park, Li (2013). Nutrient recovery from wastewater streams by microalgae: Status and prospects. Renewable and Sustainable Energy Reviews. doi:10.1016/j.rser.2012.11.030

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lab Bamboo 2010

Bamboo charcoal for cadmium

Tested bamboo charcoal as a low-cost adsorbent for cadmium ions in water.

Built / tested: adsorbents

As reported in: Wang, Wang, Ma (2010). Adsorption of cadmium (II) ions from aqueous solution by a new low-cost adsorbent—Bamboo charcoal. Journal of Hazardous Materials. doi:10.1016/j.jhazmat.2009.12.032

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lab Hydroxyapatite 2010

Magnetic HAp for cadmium and zinc

Magnetic hydroxyapatite nanoparticles as adsorbents for cadmium and zinc in water.

Built / tested: adsorbents

As reported in: Feng, Gong, Zeng et al. (2010). Adsorption of Cd (II) and Zn (II) from aqueous solutions using magnetic hydroxyapatite nanoparticles as adsorbents. Chemical Engineering Journal. doi:10.1016/j.cej.2010.05.049

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lab Zeolites 2010

Natural zeolite removes ammonium

Used natural Chinese zeolite as an adsorbent for ammonium in water.

Built / tested: adsorbents

As reported in: Huang, Xiao, Yan et al. (2010). Ammonium removal from aqueous solutions by using natural Chinese (Chende) zeolite as adsorbent. Journal of Hazardous Materials. doi:10.1016/j.jhazmat.2009.09.156

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lab Alginate (seaweed) 2008

Chitosan-alginate beads for copper

Compared chitosan, crosslinked chitosan and chitosan-alginate beads for adsorbing copper ions from water.

Built / tested: adsorbent beads

As reported in: Ngah, Fatinathan (2008). Adsorption of Cu(II) ions in aqueous solution using chitosan beads, chitosan–GLA beads and chitosan–alginate beads. Chemical Engineering Journal. doi:10.1016/j.cej.2007.12.006

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lab Zeolites 2007

Clinoptilolite for lead

Lead removal from water with natural and pretreated clinoptilolite: equilibrium and kinetics.

Built / tested: adsorbents

As reported in: Günay, Arslankaya, Tosun (2007). Lead removal from aqueous solution by natural and pretreated clinoptilolite: Adsorption equilibrium and kinetics. Journal of Hazardous Materials. doi:10.1016/j.jhazmat.2006.12.034

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lab Diatomite 2003

Diatomaceous earth for dye removal

Studied physical characteristics and adsorption mechanisms of diatomaceous earth for removing dyes from textile wastewater.

Built / tested: adsorbents

As reported in: Al-Ghouti, Khraisheh, Allen et al. (2003). The removal of dyes from textile wastewater: a study of the physical characteristics and adsorption mechanisms of diatomaceous earth. Journal of Environmental Management. doi:10.1016/j.jenvman.2003.09.005

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