Asian Journal of Microbiology, Biotechnology & Environmental Sciences Paper

Vol 20, Feb. Suppl. Issue, 2018; Page No.(9-16)

THE EFFECTS OF PLANTING MEDIA OF COCONUT FIBRE AND CHARCOAL RICE HUSK ON AMMONIA, PHOSPHATE, SULFIDE, COPPER AND ZINC IN HYDROPONIC SYSTEM OF SPINACH (AMARANTHUS TRICOLOR L.)

REFILDA, LOKA PUTRI GUSTIN, HAMZAR SUYANI AND DESWATI

Abstract

Hydroponics research with the axis of the system is expected to reduce ammonia, phosphate, sulfide, copper and zinc contained in the solution of fish pellets. For testing the concentration of ammonia and phosphate dilution of the sample solution by using doubly distilled water, while to test the concentration of sulfides, copper and zinc sample by pretreatment with wet digestion process using HNO3 65% and then heated until a solution are colorless (clear). The content of ammonia and phosphate in the analysis using UV/Vis, while the content of sulfide, copper and zinc were analyzed using flame atomic absorption spectrophotometry (AAS). It has been made known that the samples of fish pellets undergo a process of reduction of the maximum on the 30th day of hydroponic systems. On the 30th day, hydroponics were made using a variety of medium using spinach (Amaranthus tricolor L.) as a plant that will assist the process of reducing toxic substances. For the ammonia reduction process, copper and zinc metals obtained data that the best medium variation for the reduction process is a medium with composition CRH (charcoal rice husk) 100% and CCF (coconut fibre) 100%, whereas for phosphate reduction in medium with composition CCF: CRH = 75%:25% and composition CCF: CRH = 50% : 50%

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