LAJU DEGRADASI SURFAKTAN LINEAR ALKIL BENZENA SULFONAT (LAS) PADA LIMBAH DETERJEN SECARA ANAEROB PADA REAKTOR LEKAT DIAM BERMEDIA SARANG TAWON

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Nida Sopiah

Abstract

Linear alkylbenzene sulfonate (LAS) represents one of active substance
of surfactants in detergents of which in high concentrations may cause
environmental pollutions. The aim of the research was to know the
efficiency of exclusion of LAS and the rate of LAS degradation in
detergent wastes by the anaerobic process at fixed bed reactor equipped
with cross flow material. This research was done in Process Laboratory of
Balai Teknologi Lingkungan BPPT PUSPIPTEK Serpong. Reactor
operation was done through continuous process with close circulation, up
flow and 5 hours Rate Time Hour (RTH). Exclusion of LAS of detergent
waste was recorded for 17 days. The degree of acidity after the process
without inoculum (P1.0) was to 8.45, and for an anaerob condition with
added inoculum (P1.1) was 7.88. The efficiency of the highest exclusion
of CO soluble was equal to 80.96% (P1.1) with effluent 476 mg/L, and 76.81 % (P1.0) with effluent 531 mg/L. The exclusion of LAS of detergent
wastes was 99.19% (P1.1) with LAS effluent equal to 17.51 mg/L and
98.3% (P1.0) with LAS effluent equal to 27.84 mg/L. The maximum rate of
LAS surfactant degradationunt 0.95 ppm/day (P1.1) and 0.44 ppm/day
(P1.0).

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RESEARCH ARTICLES

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