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Optimation of poly aluminium chloride (PAC) and activated carbon on the laboratory wastewater treatment process in pretreatment sedimentation pondOptimasi poly aluminium chloride (PAC) dan arang aktif terhadap proses pengolahan air limbah laboratorium di bak pengendap awal

The process in the laboratory produces waste that must be treated before releasing into the environment. One of the laboratory wastewater characteristics is high surfactant, COD and TSS content. This research will examine the performance of the anaerobic system of Wastewater Treatment Plants (IPAL) which uses a combined wasp nest with multi-layer filtration (MLF) in treating laboratory wastewater. Wastewater flows into the wasp nest media and MLF then, samples are taken at the inlet point, wasp nest outlet and MLF outlet. The water at each point was then tested for pH value, ammonia content, turbidity, COD, TSS, Fatty Oil and Surfactant as MBAS on days 1, 3 and 5. The test results showed that the combination of wasp nests and MLF was able to reduce the turbidity value. amounted to 84.3%, TSS 68.2%, COD 68.33%, Fatty Oil 63.46%, MBAS 61.23% and ammonia 25%. In addition, IPAL is able to restore the pH of the air to neutral.

No abstract