Distribution of organic contamination based on depth stratification in Maninjau Lake, Indonesia

Conference on Innovation in Technology and Engineering Science

工业技术（总论）

Komala, P.S.^1 ; Nur, A.^1 ; Nazhifa, I.^1

Environmental Engineering Department of Andalas University, Limau Manis Kec. Pauh, Kota Padang, Sumatera Barat

25163, Indonesia^1

关键词: Environmental conditions;    Government regulation;    National standard;    Organic contamination;    Organic content;    Quality standard;    Shallow lakes;    Strong correlation;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/602/1/012057/pdf
DOI  :  10.1088/1757-899X/602/1/012057

学科分类：工业工程学

来源: IOP

【 摘 要 】

The purpose of this study was to analyze the organic content of Lake Maninjau based on depth stratification and its organics carrying capacity. Sampling was carried out at the location of lake utilization, namely in the lake center, settlement, hydropower, endemic fisheries, and fish cage following Indonesian National Standard SNI 6989.57: 2008. The parameters measured were BOD5, COD and environmental condition such as pH, DO and temperatures. Lake Maninjau generally is polluted, especially for organic pollutants characterized by the BOD5 and COD values that did not meet the quality standard of Government regulations the Republic of Indonesia Number 82 the year 2001 class 2 according to its designation namely 21.87-47 mg BOD/L and 35.2-74 mg COD/L. Using one-way analysis of variance (ANOVA) at 0.05% level of significance both BOD5 and COD has a strong correlation with depth of the lake, at hydropower and endemic fisheries. At the shallow lake depths, water is easy to mix so that the organic matter distributed vertically. Fish cage has the highest contribution to the contamination of organic matter in the lake.