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DOI: https://doi.org/10.4491/eer.2018.270
Effects of potassium and carbon addition on bacterial algae bioremediation of boezem water
Indah Nurhayati, Rhenny Ratnawati, and Sugito
Department of Environmental Engineering, Universitas PGRI Adi Buana Surabaya, Dukuh Menanggal XII Surabaya 60234, Indonesia
Corresponding Author: Indah Nurhayati ,Tel: +62-31-5041097 , Fax: +62-31-5042804, Email: indahnurhayati@unipasby.ac.id
Received: August 3, 2018;  Accepted: November 10, 2018.
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ABSTRACT
Bioremediation of bacterial algae is one of wastewater treatment by utilizing symbiosis of bacterial algae, which is relatively inexpensive and safe for the environment. The aims of this research were: (1) to investigate initial characteristic of boezem water of Kalidami Surabaya, (2) to investigate the effect of potassium (K) element and carbon source addition toward the reduction of NH3-N content and organic matter in KMnO4 of boezem water. The research conducted in a laboratory in batches without adding aeration. The initial stage of this research was conducting alga culture until it was obtained chlorophyll-a algae concentration of 3.5 ± 0.5 mg/L. The best result of range finding test was a comparison of boezem water volume with algal which were about 25%:75%. The research conducted in duplo over 18 d. The result of the research can be concluded that boezem water of Kalidami Surabaya for the parameter of pH, temperature, NH3-N, dissolved oxygen, chemical oxygen demand, biological oxygen demand, and number of KMnO4 show that it enables to do bioremediation of bacterial algae. Decrease efficiency occurred in a reactor with the addition of element K 3% and source C. NH3-N and KMnO4 final content 0.164 mg/L and 30 mg/L, respectively.
Keywords: Algae | Bacteria | Bioremediation | Boezem water | KMnO4 | NH3-N
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