1. Home
  2. Vol 3, No 2 (2020)
  3. Mulyati

DEVELOPMENT OF COD (CHEMICAL OXYGEN DEMAND) ANALYSIS METHOD IN WASTE WATER USING SPECTRODIRECT

Ade Heri Mulyati, Leny Heliawati, Sutanto ., Uswatun Hasanah, Diana Widiastuti, Siti Warnasih, Yulian Syahputri

Abstract


Increased human activities will cause various problems, one of which is water pollution in water sources because it receives a pollution load that exceeds its carrying capacity. In the context of environmental conservation, the government has set quality standards for liquid waste produced by various industries and other activities in a Decree of the State Minister for the Environment. COD (Chemical Oxygen Demand) is one of the most important parameters in wastewater quality standards. This study aims to validate the COD analysis method which refers to COD Thermoreactor System (LOVIBOND brand) at Pakuan University Service Laboratory, to ensure the validity of COD analysis results at Pakuan University Service Laboratory. Spectrodirect COD analysis method provides results that meet the requirements of accuracy, precision, LOD, and LOQ which is quite good. The results of the Coefficient of Variation give good results with a value of 1.8841% indicating the accuracy of the analysis method is good. The accuracy parameter also gives good results and meets the requirements with a% recovery value of 98.70351%. Overall, it can be stated that the spectrodirect analysis method tested is an accurate, precise, simple, and economical method for determining COD levels

Keywords


waste water; COD analysis; validation; accuratio; precition

References


Asmadi, Khayan, Kasjono H.S. 2011. Teknologi Pengolahan Air Minum. Yogyakarta: Gosyen Publishin g

Asmadi dan Suharno. 2012. Dasar Dasar Teknologi Pengolahan Air Limbah.Gosyen Publishing : Yogyakarta.

KEP-42 / MENLH / 10/1996. Decree of the State Minister for the Environment Number

KEP-42 / MENLH / 10/1996. Kep. MENLH No. 112 of 2003. Decree of the State Minister of the Environment Number 112 of 2003.

Metcalf & Eddy, Inc. 1991. Wastewater Engineering: treatment, disposal, reuse. 3rd ed. (Revised by: G. Tchobanoglous and FL Burton).

Kep. MENLH No. 113 of 2003. Decree of the State Minister of the Environment Number 113 of 2003.

Kep. MENLH No. 51 of 2004. Decree of the State Minister for the Environment Number 51 of 2004.

Apha. 1989. Standard methods for the examination of waters and wastewater. 17th ed. American Public Health Association, American Water Works Association, Water Pollution Control Federation. Washington, DC 1467 p

McGraw-Hill, Inc. New York, Singapore. 1334 p. Umaly, RC and Ma LA Cuvin. 1988.

De Santo, RS 1978. Concepts of applied ecology. Heidelberg Science Library. Springer-Verlag, New York. 310 p.

Sastrawijaya, 2000, Pencemaran Lingkungan, Rineka Cipta, Jakarta.

Instruction Manual BO 600 BOD and COD Thermoreactor System (LOVIBOND Brand)


Full Text: PDF

DOI: 10.33751/jsi.v3i2.3006

Refbacks

  • There are currently no refbacks.