Pemantauan Kualitas Air Sungai Digoel, Distrik Jair, Kabupaten Boven Digoel, Papua

ABSTRACT: Digoel river have an important role to the human activity and environment in Boven Digoel Regency. Increasing of human  and  industrial  activity  around  the  watershed  of  Digoel  River  were  suspecious  to  cause  the  degradation water quality in Digoel River. This research was done to monitor the impact of the industrial activity to the quality of  water  in  outlet  of  waste  water  treatment  plant(WWTP)  of  PT.  Korindo  to  the  water  quality  of  Digoel  River. Parameter analised are the physical, chemical, organic chemical, microbiology and metal content in water. Analysis of  the  water  quality  accordance  to  PP Nomor 82 Tahun 2001  about  water  quality  managementand  water  pollution and  Permen  LH  Nomor  5  tahun  2014  about  the  quality  of  waste  water.The  monitoring  was  conducted  in  three months  at  five  sampling  stasion  (river  upstream,  river  down  stream,  outlet  WWTP  plywood,  outlet  WWT workshop,  outlet  WWTP  palm  oil)  in  Districk  Jair.  The  rsult showed,  parameter  of  BOD,  COD,  phospate,  phenol and total coliform in Digoel River exceeded class I of water quality standards. Outlet of plywood WWTP have two parameters  that  exceed  the  quality  standard  which  were  TSS  15.67  mg/L  and  phenol  13.33  mg/L.The  outlet  of WWTP workshop have four pameter exceeded the quality standard which were TSS (383.67 mg/L), oil/fats (502.0 µg/L),  phenol  (11.0  µg/L),  and  zinc  (21,000  mg/L).  IPAL  oil  WWTP  outlet  have  two  parameter  sexceeded  the quality  standars  which  were  oil/fats  (313.0  µg/L)  and  total  coliform  (>  979  cells/100  mL).  The  result  indicating  that the status of water quality of Digoel River are categorized as “lightly polluted”. Therefore based on utilization, it was categorized as class IV water quality that can be used for irrigating, planting and other purposed that meet the  requairement  of  water  qualiy  in  this  class,  while  for  other  uses  need  necessary  processing.  In  order    not  to  increase  the  pollution  in  the  Digoel  river  the  WWTP  of  industry  around  Digoel  River  should  improved  their treatment, so that waste water discharged to the Digoel River not exceed the stanards quality. 
Key words: water quality, digoel river, status of water quality, pollutant index
Penulis: ROSYE H.R. TANJUNG, HENDRA K. MAURY DAN SUWITO
Kode Jurnal: jpbiologidd160005

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