CD Skripsi
Penggunaan Limbah Cair Tahu Dengan Campuran Limbah Cair Septic Tank, Urin Sapi Dan Em4 Menjadi Pupuk Organik Cair Untuk Pertumbuhan Fitoplankton
Liquid wastes originated from tofu industries (T), human excreta (HE) liquid waste and cow’s urine (CU)are rich in organic materials and they are potential as basic ingredient for liquid fertilizer.To understand the N, P and K content in the liquid fertilizer made from mixed waste and its effectiveness in improving the growth of phytoplankton, a study has been conductedfrom September to November 2015.There were 7 treatments applied, namely P1 (100% T); P2 (90 % T and 10% CU) ; P3(90% T and 10% EM4); P4 (90% T and 10% HE); P5 (80% T, 10% CU and 10% EM4); P6 (80% T, 10% CU and 10% HE) and P7 (70% T, 10% CU, 10% HE and 10% EM4). Results shown that P6 is the best, with 22.590 mg/L N content and 146 mg/L P content. The K content in all treatments was almost the same. Addition of the liquid fertilizer into phytoplankton media significantly increases the abundance of phytoplankton. The highest abundance was obtained in P6. This fact indicates that human excreta waste and cow urine can be used to substitute the use of EM4 in fermenting the tofu liquid waste. Based on data obtained, it can be concluded that the liquid fertilizer made from mixed tofu liquid wastes, human excreta, cow’s urine and EM4 is effective for increasing the phytoplankton abundance. Keyword: Tofu liquid waste, human excreta liquid waste, cow’s urine, EM4, Liquid Fertilizer, phytoplankton
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