WATER QUALITY OF SINAMAR RIVER LIMA PULUH KOTA DISTRICT WEST SUMATERA BASEDON STRUCTURE OF MICROALGAE PERIPHYTON AS BIOINDICATOR

Ekawaty, Reni and Harmailis, Harmailis and Abizar, Abizar (2017) WATER QUALITY OF SINAMAR RIVER LIMA PULUH KOTA DISTRICT WEST SUMATERA BASEDON STRUCTURE OF MICROALGAE PERIPHYTON AS BIOINDICATOR. In: int'l conference proceeding : IPCET-17,CM3E-17,ABEMS-17,ICEEE-17,ICCEE-17,ICASE-17,ICAFE-17,EBHRM-17,LHHSS-17,LEBHM-17. EXELLENCE IN RESEARCH AND INNOVATION. ISBN 9788193417454

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Abstract

sinamar river is one of the rivers in limapuluh kota district that have important functional. this river is used as irrigation, bathing and washing, and husbandries. there are many human activities as long as this river such as residents, industries, traditional markets, and agricultural. the objective of this study is to know the level of sinamar river pollution based on microalgae periphytons communities. the samples was taken in 8 sections. the result are microalgae periphytones in batang sinamar founded 24 spesies, cyanophyta (3 spesies), chloropyhta (7 spesies), chrysophyta (12 spesies), euglenophyta (2 spesies), diversity. indeks is about 2,51-2,75 and saprophyt index is about 0,9-1,3. this indicated batang sinamar contaminated lightly. Based on water quality. batang sinamar has DO 6,88-8,33 mg/L, BOD,0.14-1,60 mg/L, COD 0,8-10,4 mg/L, Amoniak <0,14 mg/L, TSS 0,058-0,16 mg/L, and pH 6,52-7,37. All of this parameter still in range of indonesian goverment regulation no 82/2001

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