Effects of potassium and carbon addition on bacterial algae bioremediation of boezem water

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.

The Effect of Dichloromethane on Product Separation during Continuous Hydrothermal Liquefaction of Chlorella vulgaris and Aqueous Product Recycling for Algae Cultivation

“…This is possibly caused by a particularly high content of K and Na after ACA treatment. K can neutralize the organic anions and other compounds to stabilize the pH in the culture, and Na was reported to exert a beneficial effect on the microalgae biomass production. However, it should also be noted that a concentration of Na higher than 3 mM could generate a toxic effect for the growth .…”

Treatment for Landfill Leachate Utilize Coagulation-Flocculation Combined with Biofilter

“…Seeding was a breeding process carried out to grow and revive microorganisms. The process of adapting microorganisms that had grown to the conditions of the new reactor and the leachate to be treated was also called the acclimatization process (Nurhayati et al, 2019). The leachate flowed continuously into the aerobic-anaerobic biofilter reactor for eight hours.…”

Bioremediation Greywater using Vermifilter

“…The BOD/COD concentration ratio of 0.53 was in the range of 0.30-0.80. It indicate that wastewater is biodegradable, and untreated (Nurhayati et al, 2019;Ratnawati dan Sugito, 2021). The low DO concentration was due to the high concentration of organic substances (Singh et al, 2019b;Sugito et al, 2021).…”

“…The removal of NH3-N occurred due to the nitrification process by Nitrosomonas sp bacteria oxidizing NH3-N to nitrite (Ratnawati dan Sugito, 2021). Nitrobacter bacteria oxidize nitrite to nitrate (Nurhayati et al, 2019;Singh et al, 2019b). Bacteria need oxygen to reduce NH3-N.…”