The efficient role of aquatic plant (water hyacinth) in treating domestic wastewater in continuous system

Rezania S 1 , Din MF 1 , Taib SM 2 , Dahalan FA 3 , Songip AR 4 , Singh L 5 Show all authors , Kamyab H 1

Affiliations 

  • 1 a Centre for Environmental Sustainability and Water Security (IPASA), Research Institute for Sustainable Environment, Universiti Teknologi Malaysia , Johor Bahru , Malaysia
  • 2 b Department of Environmental Engineering , Faculty of Civil Engineering, Universiti Teknologi Malaysia (UTM) , Johor , Malaysia
  • 3 c Water Research Group, The School of Environmental Engineering, Universiti Malaysia Perlis (UniMAP), Kompleks Pengajian Jejawi , Arau . Perlis , Malaysia
  • 4 d Malaysia-Japan International Institute of Technology, Universiti Teknologi Malaysia Kuala Lumpur, Jalan Semarak , Kuala Lumpur , Malaysia
  • 5 e Faculty of Technology, Universiti Malaysia Pahang (UMP), Lebuhraya Tun Razak , Gambang , Kuantan , Pahang , Malaysia
Int J Phytoremediation, 2016 Jul 2;18(7):679-85.
PMID: 26684985 DOI: 10.1080/15226514.2015.1130018

Abstract

In this study, water hyacinth (Eichhornia crassipes) was used to treat domestic wastewater. Ten organic and inorganic parameters were monitored in three weeks for water purification. The six chemical, biological and physical parameters included Dissolved Oxygen (DO), Biological Oxygen Demand (BOD), Chemical Oxygen Demand (COD), Ammoniacal Nitrogen (NH3-N), Total Suspended Solids (TSS), and pH were compared with the Interim National Water Quality Standards, Malaysia River classification (INWQS) and Water Quality Index (WQI). Between 38% to 96% of reduction was observed and water quality has been improved from class III and IV to class II. Analyses for Electricity Conductivity (EC), Salinity, Total Dissolved Solids (TDS) and Ammonium (NH4) were also investigated. In all parameters, removal efficiency was in range of 13-17th day (optimum 14th day) which was higher than 3 weeks except DO. It reveals the optimum growth rate of water hyacinth has great effect on waste water purification efficiency in continuous system and nutrient removal was successfully achieved.

* Title and MeSH Headings from MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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