Abstract
Only 15% of the industries in Citarum Watershed, specifically in Bandung Regency, West Bandung Regency, Sumedang Regency, Bandung City and Cimahi City, are registered as PROPER industries. They must comply to indicators as set in the Minister of Environment and Forestry Decree No. 3 In 2014 concerning Industrial Performance Rank in Environmental Management, as a requirement to apply for PROPER. Wastewater treatment and management, referencing to Minister of Environment and Forestry Decree No. 5 In 2014 concerning Wastewater Effluent Standards, must be performed to be registered as PROPER industries. Conducting only physical-chemical parameter monitoring of wastewater is insufficient to determine the safety of wastewater discharged into the river, therefore additional toxicity tests involving bioindicator are required to determine acute toxicity characteristic of wastewater. The acute toxicity test quantifies LC50 value based on death response of bioindicators from certain dosage. Daphnia magna was used as bioindicator in the toxicity test and probit software for analysis. In 2015-2016, the number of industries that discharged wastewater exceeding the standard was found greater in non-PROPER industries than in PROPER industries. Based on the toxicity level, both PROPER and non-PROPER industries have toxic properties, however PROPER industries of 2015-2016 is more toxic with LC5096 value reaching 2.79%.
Highlights
PROPER (Program Penilaian Peringkat Kinerja Perusahaan/Assessment of Industrial Performance Rank Program) as industrial rank incentive of environmental aspect is one of efforts implemented by Indonesian Ministry of Environment and Forestry (MoEF) to pursue compliance of environmental management regulations
Results shows that average LC50 from three reference tests is 4.685, which is close to the value mentioned in literatures, it is adequate to do the Whole Effluent Toxicity (WET) test
PROPER and non-PROPER industries of 2015-2016 discharged wastewater with some of its parameters exceeding the standard regulated in PermenLKH No 5/2014
Summary
PROPER (Program Penilaian Peringkat Kinerja Perusahaan/Assessment of Industrial Performance Rank Program) as industrial rank incentive of environmental aspect is one of efforts implemented by Indonesian Ministry of Environment and Forestry (MoEF) to pursue compliance of environmental management regulations. Registered PROPER industries in Upper Citarum watershed, Bandung Regency; West Bandung; Sumedang Regency; Bandung City and Cimahi City, amount to only 15% of all industries around those locations (BPLHD West Java, 2015). PROPER industry participants must comply to certain parameters in Minister of Environment and Forestry Decree No 3 In 2014 (PermenLKH No 3/2014) to be registered. There are further tests to be conducted and effluent standards to be complied, according to Minister of Environmental and Forestry Decree No 5 In 2014 (PermenLKH No 5/2014) concerning wastewater effluent standard, including physical, chemical and biological parameters. Wastewater quality measurements in physical parameters have burden of solid dimensions, while chemical parameters require another chemical addition. Further biological tests exposing certain dosage on bioindicators is needed to determine toxicity level of discharged wastewater
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