Corrigendum to “Adsorption of chromium(VI) on low cost adsorbents derived from agricultural waste material: A comparative study [J. Hazard. Mater. 145 (July (3)) (2007) 465–470]”

2009 ◽  
Vol 170 (1) ◽  
pp. 506 ◽  
Author(s):  
Shashi Prabha Dubey ◽  
Krishna Gopal
Keyword(s):  
Comparative Study ◽  
Low Cost ◽  
Agricultural Waste ◽  
Waste Material ◽  
Chromium Vi

A comparative study of chromium(VI) removal using sawdust and eucalyptus bark

2009 ◽  
Vol 9 (4) ◽  
pp. 343-347
Author(s):  
Abhinav Sharma ◽  
Aditya Tulsyan ◽  
Srinivas Motamarri
Keyword(s):  
Comparative Study ◽  
Hexavalent Chromium ◽  
Low Cost ◽  
Industrial Area ◽  
Contaminated Water ◽  
Tannery Effluent ◽  
Freundlich Isotherms ◽  
Chromium Vi ◽  
Experimental Parameters ◽  
Eucalyptus Bark

A comparative study on low cost biological adsorbents such as eucalyptus bark and sawdust has analyzed them for their effectiveness in the removal of hexavalent chromium. Batch experiments were carried out on synthetic solutions mimicking bore water collected from an industrial area contaminated with tannery effluent. The analysis on hexavalent chromium removal was carried out by varying experimental parameters such as pH, dosage and contact time. The study reveals that sawdust works best at pH 3 while eucalyptus shows better results at pH 2. Moreover, the optimum dosages determined for the absorbents were in compliance with the Langmuir and Freundlich isotherms. The study highlights the benefits of eucalyptus bark in purification of Cr(VI) contaminated water supply.

Color Removal from Wastewater Using Low-Cost Activated Carbon Derived from Agricultural Waste Material

2003 ◽  
Vol 42 (9) ◽  
pp. 1965-1976 ◽  
Author(s):  
Kunwar P. Singh ◽  
Dinesh Mohan ◽  
Sarita Sinha ◽  
G. S. Tondon ◽  
Devlina Gosh
Keyword(s):  
Activated Carbon ◽  
Low Cost ◽  
Agricultural Waste ◽  
Waste Material ◽  
Color Removal

scholarly journals The Use of the Biomass of a Macromycete Fungus for the Bioremediation of Chromium (VI) in Solution

2021 ◽  
pp. 15-27
Author(s):  
Ismael Acosta Rodríguez ◽  
Erika Enriquez Domínguez ◽  
Adriana Rodríguez Pérez ◽  
Juan Fernando Cárdenas González ◽  
Víctor Manuel Martínez Juárez ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Industrial Waste ◽  
Agaricus Bisporus ◽  
Low Cost ◽  
Agricultural Waste ◽  
Colorimetric Method ◽  
The Other ◽  
Chromium Vi ◽  
Removal Capacity ◽  
Biomass Removal

Recently, the removal capacity of different heavy metals from sites contaminated by low-cost materials has been studied, with promising results. These adsorbents include dead microorganisms, clay minerals, agricultural waste, industrial waste, and other materials. The objective of this work was studying the removal capacity of Cr (VI) by a commercial mushroom, the macromycete Agaricus bisporus (white strain), by the Diphenylcarbazide colorimetric method It was found that the biomass removal 100 mg/L of the metal at 21 minutes, pH 1.0, 28oC, and 100 rpm. On the other hand, if the concentration of the metal is increased, the removal capacity for the analyzed biomass decreases at 28oC. 200 mg/L are removal at 60 minutes, while with 1 g/L of the metal, its removal 90.3%. If the concentration of the bioadsorbent is increased, the removal of the metal also increases, and the presence of other heavy metals does not influence in the removal of the metal, and this was desorbed 70.4%, with NaOH 0.5 N. Finally, it was observing that after 7 days of incubation, 76.2%, and 66.1%, of Cr (VI) present in naturally contaminated earth and water, were removal, respectively.

Removal of nutrients from Organic Liquid Agricultural Waste using filamentous algae.

2020 ◽  
Author(s):  
Gonzalo Flores-Morales ◽  
Mónica Díaz ◽  
Patricia Arancibia-Avila ◽  
Michelle Muñoz-Carrasco ◽  
Pamela Jara-Zapata ◽  
...  
Keyword(s):  
Organic Waste ◽  
Low Cost ◽  
Organic Liquid ◽  
Agricultural Waste ◽  
Filamentous Algae ◽  
Tertiary Treatment ◽  
Nutrient Reduction ◽  
Algae Removal ◽  
Algae Growth ◽  
Waste Effluents

Abstract A feasibility analysis of tertiary treatment for Organic Liquid Agricultural Waste is presented using filamentous algae belonging to the genus Cladophora sp. as an alternative to chemical tertiary treatment. The main advantages of tertiary treatments that use biological systems are the low cost investment and the minimal dependence on environmental variables. In this work we demonstrate that filamentous algae reduces the nutrient load of nitrate (circa 75%) and phosphate (circa 86%) from the organic waste effluents coming from dairy farms after nine days of culture, with the added advantage being that after the treatment period, algae removal can be achieved by simple procedures. Currently, the organic wastewater is discarded into fields and local streams. However, the algae can acquire value as a by-product since it has various uses as compost, cellulose, and biogas. A disadvantage of this system is that clean water must be used to achieve enough water transparency to allow algae growth. Even so, the nutrient reduction system of the organic effluents proposed is friendly to the ecosystem, compared to tertiary treatments that use chemicals to precipitate and collect nutrients such as nitrates and phosphates.

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