Penggunaan Fitoremediasi dengan Sistem Up-Flow untuk Mereduksi Polutan pada Outlet Kolam Anaerob II Limbah Cair Pabrik Kelapa Sawit
Abstract
Oil palm plantations are one of the commodity crops that have an important role in the economy in Indonesia, namely as an export commodity that generates foreign exchange in addition to oil and gas. The increase in world demand for oil palm commodity encourages the growth of oil palm industry so that estimates of liquid waste also increase. If the liquid waste is disposed of directly into the aquatic environment without proper management, it will have a negative impact. This study aims to find the best phytoremedian in reducing the pollutants of WWTP II anaerobic ponds in the oil palm mill industry and to get the reduction. Research activities took place from July 2020 to September 2020 in the field and Analysis Laboratory of the Lampung State Polytechnic. This study uses an up-flow system with a stagnant condition and is carried out on a laboratory scale by testing using descriptive methods. The phytoremedian used in this study were water nails (Azolla pinnata) (A1), water spinach (Ipomoea aquatica) (A2), cattail (Typha angustifolia) (A3) and water bamboo (Equisetum hyemale) (A4). The results showed that the best phytoremedian in reducing the observation variable of oil palm mill effluent outlet anaerobic pond II was water spinach (Ipomoea aquatica). Phytoremedian Ipomoea aquatica at the end of the treatment was able to reduce the COD value with a decrease percentage of 41.29%, increase the pH to 8.57, reduce the TSS value to 124 mg/L, the turbidity value to 21 mg/L, the total N value to 0.021 mg/L, the K value becomes 2.59 mg/L.
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