Authors: ElSayed, Eman , Rudra, Ramesh , Abbassi, Bassim , Prasher, Shiv , Shahin, Faisal
Identifier: CSBE18134
Download file:
Published in: CSBE-SCGAB Technical Conferences » AGM Guelph 2018

Download RAW file:
DOI:
Description: Wastewater contains a wide variety of pollutants. When wastewater is poorly treated, pollutants such as heavy metals could be discharged to surface water, consequently, posing a risk to aquatic life and human health. In the present study, our goal is to efficiently remove heavy metals from domestic wastewater effluents by using potential sorbents such as biochar originated from agricultural waste. Therefore, triplicates of 10 cm columns packed with biochar (rice straw torrefacted at400 ?C) were prepared then wastewater at four flow rates (1, 2, 4, 10 ml min-1) were passed through the columns. The leachates were collected and analyzed for their content of heavy metals (lead, cadmium, copper, chromium, iron and zinc) by atomic absorption. Breakthrough curves were constructed for each flow rate. In order to simulate the mobility of each heavy metal in the column profile, a one-dimensional model, HYDRUS-1D, was employed. The HYDRUS software is selected among the most widely used models because of the simulating water flow and solute transport in soils. Results showed that Hydrus-ID is capable of simulating the transport of lead, cadmium, copper and zinc under the experiment conditions. This was confirmed by the calculated Nash number for each element as 0.72, 0.72, 0.78 and 0.78 for lead, cadmium, copper and zinc, respectively. The results can be scaled up to design a low-cost effective and environmentally friendly filters for domestic and industrial wastewater.

Keywords: Modelling, wastewater, heavy metals, biochar, transport
Résumé:
Mots-clés:
Citation:
Volume:
Issue:
Pages -
Contributor:
Date: 2018-07-22
Technical field:
Conference name: CSBE/SCGAB 2018 Annual Conference, School of Engineering, University of Guelph, Guelph, Ontario, July 22-25 2018.
Session name: Poster Session

Other information:
Type: Text.Article
Format:
Publication type: Technical conference
Source:
Relation:
Coverage: Canada
Language 1: en
Language 2:
Rights: Canadian Society for Bioengineering
Notes:
Other files: