| Penulis/Author |
Yudha Dwi Prasetyatama, S.T., M.Eng. (1) ; Dr. Ngadisih, S.T.P., M.Sc. (2); Dr.nat.techn. Rizki Maftukhah, S.T.P., M.Sc. (3); Dr. Ir. Rudiati Evi Masithoh, S.T.P., M.Dev.Tech., IPU., Asean Eng. (4); Dr. Joko Nugroho Wahyu Karyadi, S.T.P., M.Eng. (5); Prof. Dr. Ir. Lilik Sutiarso, M.Eng. (6) |
| Abstrak/Abstract |
Domestic wastewater treatment unit consisted of a single chamber septic tank and Subsurface Flow Constructed Wetland (SFCW) was built in Yogyakarta, Indonesia. SFCW played a significant role as secondary treatment of septic tank effluent. This study aimed to analyze the soil nitrate and its distribution in sand layer of SFCW. The SFCW had a depth of 0.2 m of coral and sand layers with two leach pipes that were installed in the depth of 0.3 m along the garden and planted with chili (Capsicum frutescens). Soil nitrate content of SFCW and plant growth were analyzed for 8 weeks of observation. Soil samples were taken in different direction, both vertical and horizontal. In vertical direction, samples were taken with
three different depth (10, 15, and 20 cm) from the surface. In horizontal direction samples were taken with three different distance from outlet pipe. Soil nitrate obtained in vertical direction was significantly different (P<0>0.05). The soil nitrate has positive correlation with plant growth, the higher soil nitrate will increase the plant growth. |
