Penentuan kadar total padatan tersuspensi ( TSS ) dan sulfida ( S2- ) dari air limbah inlet dan outlet PT. Toba Pulp Lestari, Tbk Porsea

Abstract

Has Analyzed levels of TSS (Total Suspended Solids) and sulfide (S 2-) in the laboratory pulp mill effluent PT. Toba Pulp Lestari Tbk. The level of TSS (Total Suspended Solids) performed by gravimetric method is by filtration, drying and weighing until constant weight. Sulfide content inspection was conducted using a spectrophotometer. Wherein the wavelength of 665 nm sulphide. Analysis of the effluent based on the parameters - parameters of effluent standards set by the Minister of Environment. From The results of the analysis obtained by the levels of total suspended solids in the sample 1 = 44 mg / l, sample 2 = 45 mg / l and sample 3 = 46 mg / l. Sulfide levels in the samples 1 = 0.0054 mg / l, sample 2 = 0.0030 mg / l and sample 3 = 0.0023 mg /l. When Compared to the parameters of the analysis results by parameter waste effluent standards set by the Ministry of Environment, the waste water in the analysis is still below the levels of effluent quality.