Indiscriminate discharge of wastewater into the environment can lead to environmental pollution. Heavy metals present in wastewater can infiltrate into the ground to cause groundwater contamination. In this study, a solar still was employed in the removal of heavy metals from domestic wastewater. Five wastewater samples with high heavy metal contents were kept in a solar still and subjected to heat from the sun. The solar still was constructed using locally available materials. The concentration of Iron (Fe), Zinc (Zn), Manganese (Mn), Chromium (Cr) and Cadmium (Cd) in the untreated and treated wastewater samples were determined. The study revealed a drastic reduction in the heavy metal content of the treated wastewater, however, the heavy metal content of most of the treated wastewater samples did not fall within World Health Organization (WHO) limit for potable water. Remarkably, The Zn content of four out of the five treated wastewater samples fell within WHO limit for potable water except for sample 2 which witnessed a drastic reduction from 13.9 to 3.28 mg/L but still did not meet up with WHO limit of 3 mg/L. The treated wastewater can be safely discharged into the environment; however, further treatment is required to make the water safe for human consumption.
Third World Academy of Sciences (TWAS). Safe drinking water-the need, the problem, solutions and an action plan. Third World Academy of Sciences. 2002; Trieste, Italy.
Raouf MEA, Maysour NE, Farag RK, Abdul- Raheim, AM. Wastewater Treatment Methodologies, Review Article. Int J Environ & Agri Sci. 2019; 3: 018.
Mehmood K, Rehman SKU, Wang J, Farooq F, Mahmood Q, Jadoon, AM, et al. Treatment of Pulp and Paper Industrial Effluent Using Physicochemical Process for Recycling. Water. 2019; 11:2393-2408y.
World Health Organization (WHO) Guidelines for drinking- water. 2006; Geneva: World Health Organization.
World Health Organization (WHO) (2007). Combating waterborne disease at household level. 2007; Geneva: World Health Organization.
Kim MJ, Nriagu J, Haack, S. Carbonate Ions and Arsenic Dissolution by Ground Water. J. Environ. Sci. Technol. 2000; 34: 3094-3100.
Xie RJ, Tan EK, Lim SK, Haw E, Chiew CP. Pre-treatment Optimisation of SWRO membrane desalination under tropical conditions. Desalination and Water Treatment. 2009; 3(1-3): 183-192.
Vedavyasan CV. Pretreatment trends-an overview. Desalination. 2007; 203(1-3): 296-299.
Atalay A, Pao S, James M, Whitehead B, Allen, A. Drinking water assessment at underserved farms in Virginia’s coastal plain. Journal of Environmental Monitoring and Restoration. 2008; 4:53-64.
Adrados B, Sánchez O, Arias CA., Becares E, Garrido L., Mas J, et al. Microbial communities from different types of natural wastewater treatment systems: vertical and horizontal flow constructed wetlands and biofilters. Water Res. 2014; 55: 304–312.
Alison W, Michael B, Troy H, Xiaobo X, Nicholas AB, Jay G. Cost-effectiveness of nitrogen mitigation by alternative household wastewater management technologies, Journal of Environmental Management. 2015; 150: 344–354.
Nwankwo LI. Study of Natural Radioactivity of Ground water in Sango-Ilorin. Nigeria. Journal of Physical Science and Application. 2013; 2 (8): 289-295.
Islam MS, Ahmed MK, Raknuzzaman M, Habibullah-Al-Mamun M, Islam MK. Heavy metal pollution in surface water and sediment: a preliminary assessment of an urban river in a developing country. Ecol. Indic. 2015; 48: 282–291.
Wołowiec M, Komorowska-Kaufman M, Pruss A, Rzepa G, Bajda, T. Removal of Heavy Metals and Metalloids from Water Using Drinking Water Treatment Residuals as Adsorbents: A Review. Minerals, 2019; 9: 487-504.
Wambu EW, Attahiru S, Shiundu PM, Wabomba J. Removal of heavy-metals from wastewater using a hydrous Alumino-silicate mineral from Kenya. Bull. Chem. Soc. Ethiop. 2018; 32(1), 39-51.
Koz B, Cevik U, Akbulut, S. Heavy metal analysis around Murgul (Artvin) copper mining area of Turkey using moss and soil. Ecol. Indic., 2012; 20: 17–23.
Aziz HA., Adlan, MN, Hui CS, Zahari, MSM, Hameed BH. Removal of Ni, Cd, Pb, Zn and colour from aqueous solution using potential low cost absorbent. Indian J. Eng. Mater. Sci. 2005; 12, 248-258.
Lee M, Cho K, Shah AP, Biswas, P. Nanostructured sorbents for capture of cadmium species in combustion environments. Environ. Sci. Technol. 2005; 39: 8481-8489.
Davarnejad R, Panahi P. Cu (II) removal from aqueous wastewaters by adsorption on the modifified Henna with Fe3O4 nanoparticles using response surface methodology. Sep. Purif. Technol. 2016; 158: 286–292.
Fu F, Wang Q. Removal of heavy metal ions from wastewaters: A review. J. Environ. Manag. 2011; 92: 407–418.
Lai YC, Chang YR, Chen ML, Lo YK, Lai JY, Lee DJ. Poly(vinyl alcohol) and alginate cross-linked matrix with immobilized Prussian blue and ion exchange resin for cesium removal from waters. Bioresour. Technol. 2016; 214: 192–198.
Landaburu-Aguirre J, Pongracz E, Peramaki P, Keiski RL. Micellar-enhanced ultrafifiltration for the removal of cadmium and zinc: Use of response surface methodology to improve understanding of process performance and optimisation. J. Hazard. Mater.2010; 180: 524–534.
Lertlapwasin R, Bhawawet N, Imyim A, Fuangswasdi S (2010). Ionic liquid extraction of heavy metal ions by 2-aminothiophenol in 1-butyl-3-methylimidazolium hexaflfluorophosphate and their association constants. Sep. Purif. Technol. 2010; 72: 70–76.
Nurul A, Satoshi K, Taichi, K, Aleya, B, Hideyuki K, Tohru S, et al. Removal of Arsenic in Aqueous Solutions by Adsorption onto Waste Rice Husk. Ind. Eng. Chem. Res. 2006; 45: 8105-8110.
Rahmanian B, Pakizeh M, Esfandyari M, Heshmatnezhad F, Maskooki A. Fuzzy modeling and simulation for lead removal using micellar-enhanced ultrafifiltration (MEUF). J. Hazard. Mater. 2011; 192: 585–592.
Silva AM, Cruz FLS, Lima RMF, Teixeira MC, Leao, VA. Manganese and limestone interactions during mine water treatment. J. of Hazardous Materials. 2010; 181: 514-520.
Verma V, Tewari S, Rai J. Ion exchange during heavy metal bio-sorption from aqueous solution by dried biomass of macrophytes. Bioresour. Technol. 2008; 99: 1932–1938.
Yoon J, Amy G, Chung J, Sohn, J, Yoon Y. Removal of toxic ions (chromate, arsenate, and perchlourate) using reverse osmosis, nanofifiltration, and ultrafifiltration membranes. Chemosphere. 2009; 77, 228–235.
Somasani SL. Removal of Heavy Metals from Drinking Water by Adsorption onto Limestone with a Focus on Copper and Aluminum Applications. Masters Theses and Specialist Project 2012. Western Kentucky University.
Edeoja AO, Ikpambese KK. Prediction of Efficiency for a Passive Flat Plate Collector for Water Desalination using Artificial Neural Network. Journal of Energy Technologies and Policy, 2015; 5 (7): 54-59.
Lewis NS. Toward Cost-Effective Solar Energy Use. 2007. Accessed on 6th October, 2021, from http://science.sciencemag.org/content/315/5813/798.ful.
Tiwari GN, Singh HN, Tripathi R. Present status of solar distillation. Solar Energy. 2003; 75 (5): 367-373.
Kalita P, Dewan A, Borah S. A review on recent developments in solar distillation units. Sadhana. 2016; 41(2): 203-223.
J. Zuluaga-Gomez J, Bonaveri P, Zuluaga D, Álvarez-Peñaa C, Ramírez-Ortiz N. Techniques for water disinfection, decontamination and desalinization: a review, Desalination and Water Treatment. 2020; 181: 47–63.
Velmurugan V. Kumaran SS, Prabhu VN, Srithar K. Productivity enhancement of stepped solar still: performance analysis, Therm. Sci., 2008; 12: 153–163.
Nayi KH, Modi KV. Pyramid solar still: a comprehensive review. Renewable Sustainable Energy Rev. 2018; 81: 136–148.
American Public Health Association (APHA) (2005). Standard methods for the examinations of water and wastewater. 21st ed.Washington, DC: American Public Health Association.
Rajappa B, Manjappa S, Puttaiah ET. Monitoring of heavy metal concentration in groundwater of Hakinaka Taluk, India. Contemporary Engineering Sciences. 2010; 3(4):183-190.
World Health Organization (WHO) 2008 Guidelines for Drinking Water Quality (Geneva: WHO Press, World Health Organization).
Patil G, Ahmed I. Heavy metals contamination assessment of Kahargaon dam water near Chhindwara City. Acta Chim. Pharm. 2011; Indica 7-9.