Algae development in tannery wastewater treatment tanks / Sreeparna Das in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 105, N° 1 (01-02/2021)  

[article]  inJOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 105, N° 1 (01-02/2021) . - p. 41-48 Titre : Algae development in tannery wastewater treatment tanks Type de document : texte imprimé Auteurs : Sreeparna Das, Auteur ; Debojyoti Das, Auteur ; Sudin Pal, Auteur ; Shuvadip Adhikari, Auteur ; Sanjoy Chakraorty, Auteur ; Subhra Kumar Mukhopadhyay, Auteur Année de publication : 2021 Article en page(s) : p. 41-48 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Algues unicellulaires Caractérisation Cuirs et peaux -- Industrie Eaux usées -- Analyse Phytoplancton Statistique Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : We have carried out this study to characterise the physico-chemical properties of the tannery effluents at different treatment tanks and to identify if any aerobic planktonic forms are thriving in the toxic effluents. Pearson correlation matrix suggests significant positive correlation between pH and TSS, acidity, Pb and Cr. A significant positive correlation between TDS, EC and salinity is also recorded. The concentrations of six metals, namely, Cr, Pb, Cu, Zn, Mn and Fe are well within the safe limits. Principal Component Analysis, a dimension-reduction tool, shows that out of seventeen physico-chemical variables, fourteen variables contain most of the information to influence the biota. Canonical Correspondence Analysis plot strongly suggests that the physico-chemical factors significantly influenced the occurrence of phytoplankton in treatment sites of CETPs. This work addressed the basic study questions, whether any oxygen liberating life-foret is thriving in the treatment tanks that could be used in biological amelioration of toxic tannery effluents! We record the occurrence of three species of Cyanophyceae, one species under Chlorophyceae, two under Euglenophyceae and a single Bacillariophyceae in the treatment tanks extending an opportunity for further researches on the efficiency of these algal species in ameliorating different toxicants in the tannery wastewaters. Note de contenu : - Study area and period - Physico-chemical analyses - Phytoplankton enumeration - Statistical analyses - Table 1 : Physico-chemical conditions (mean ± SD) of wastewater in different treatment tanks of CETPs at CLC, Kolkata - Table 2 : Pearson correlation matrix En ligne : https://drive.google.com/file/d/1iKQ6n3GByceKzivm4-0zO6tciwrK8O4s/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=35316 [article]

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