Studi Kemampuan Vertical Subsurface Flow Constructed Wetland Dalam Menyisihkan Konsentrasi Tss, TDS, Dan Orp Pada Lindi Mengggunakan Tumbuhan Alang-alang (Typha Angustifolia)

Abstract

In general, the leachate contains organic and inorganic substances with a high concentration that are toxic. Leachate TPS Industrial Estate Terboyo have TSS content of 530 mg / l, TDS 1930 ppm, and ORP value was 193 mv. Therefore, the processing of leachate is very important before being dumped directly into the recipient's body of water in order not give a bad influence on the quality of the environment. One of the technologies to manipulate the leachate i.e. using constructed wetlands. This research aims to know the decrease in concentration of TSS, TDS, and ORP with the system sub surface flow constructed wetland. The type of plant that used in this research is Typha angustifolia which has been used in several previous research (Hamdani, 2013) with a system of sub-surface flow constructed wetland to reduce the organic pollution load in wastewater. In addition, plant Typha angustifolia grows and develops around the site. The research was conducted with a residence time of 15 days. There are 4 reactors were observed and made in duplicate, with a variation of the number of plants, among other: 1 plant ,3 plants,5 plants, and without plant and the residence time variation among others: 3,6,9,12, and 15 days. Sampling was done with a variation interval of 3 days was based on the results of research conducted by Tangahu & Warmadewanthi (2001) and Ismaryanto (2012). System Vertical Subsurface Flow Constructed Wetlands by use of plant Thypa angustifolia could remove the concentration of TSS, TDS, and change the rate of ORP. Highest TSS removal efficiency in the reactor that contains 5 plants with a residence time of 15 days, amounting to 97.55% and for TDS occur in the reactor which contains 1 plant with a residence time of 6 days, by 77%. While the ORP value changes are not too significant, which is about 200 mV in the overall residence time