Original Research Article
Year: 2019 | Month: July-September | Volume: 4 | Issue: 3 | Pages: 1-5
Effectiveness of Decreasing Cod Liquid Waste Using Constructed Wetlands Systems
Amrafidah AR Hasan1, Erniwati Ibrahim2, Atjo Wahyu3, Anwar Daud4, Aminuddin Syam5, Agus Bintara6, Andi Sumrah Pananrangi7
1Student Master Program Department of Environmental Health, Faculty of Public Health, Hasanuddin University, Indonesia
2Department of Environmental Health, Faculty of Public Health, Hasanuddin University,
3Department of Occupational Safety and Health, Faculty of Public Health, Hasanuddin University,
4Department of Environmental Health, Faculty of Public Health, Hasanuddin University,
5Department of Nutrition, Faculty of Public Health, Hasanuddin University,
6Department of Environmental Health, Faculty of Public Health, Hasanuddin University,
7Department of Non Formal Education, Faculty of Teacher Training and Education, Muhammadiyah University of Bulukumba.
Corresponding Author: Amrafidah AR Hasan
ABSTRACT
In every production activity a tofu industry can produce waste water in the form of liquid waste. The liquid waste of tofu industry has characteristics such as having a cloudy color, strong odor, foaming, and having an acid content from the production by adding vinegar. The purpose of this study was to determine the effect of water hyacinth plants in reducing COD levels using a Constructed Wetland system using variations of water hyacinth 1 kg, 1.5 kg, and 2 kg with a detention time of 7 days, 14 days and 21 days. Based on the results of the study using General Linear Model-Repeated Measure analysis shows the value of p = 0,000 <0,05, which means that there is an effect of differences in water hyacinth plant weight to detention time of decrease in liquid waste COD of tofu industry, with COD levels decreasing with a percentage of 96- 97%.
Key words: Liquid Waste, Water Hyacinth, COD, Constructed Wetland System.