Analisis Kadar Nitrat (No3) dan Nitrit (No2) dari Limbah Cair Industri Karet dengan Menggunakan Spektrofotometer pada Balai Riset Standardisasi Industri Medan

Abstract

Many rivers now that can not simply be used, because of contamination by human activities. Sources of sewage pollution can be either domestic or non domestic waste is a liquid. Liquid waste is discharged into the river, if excessive can cause environmental damage. One of the chemicals contained in waste water is Nitrate (NO3) and Nitrite (NO2). Nitrate (NO3) and Nitrite (NO2) is a chemical compound that is toxic to the environment. In this analysis, determination of nitrate and nitrite in the waste rubber spectrophotometer. From analysis of obtained results has been done for levels of Nitrate (NO3) was 1,6 mg / L ; 7,3 mg / L and 35,6 mg / L, while for the levels of Nitrite (NO2) is 0,053 mg / L ; 0,062 mg / L and 0,109 mg / L. From the results it is known that liquid waste from the rubber industry in the third week exceeds the quality standard set by the Minister of Environment No 51 in 1995 that is 20 mg / L for Nitrate (NO3) and Nitrite (NO2) 1 mg / L.