KAJIAN PENCEMARAN DETERJEN DAN FOSFAT AKIBAT LIMBAH DOMESTIK PERMUKIMAN KUMUH DI SUNGAI BRANTAS KOTA MALANG - JAWA TIMUR

• Main Authors: , Selly Ayu Janetasari, , Prof. Ir. Suryo Purwono, MA.Sc., Ph.D.
• Format: Theses and Dissertations NonPeerReviewed
• Published: [Yogyakarta] : Universitas Gadjah Mada 2013
• Subjects: ETD
• Online Access: https://repository.ugm.ac.id/125954/; http://etd.ugm.ac.id/index.php?mod=penelitian_detail&sub=PenelitianDetail&act=view&typ=html&buku_id=66136
• Institution: Universitas Gadjah Mada

One of the problems can never be solved, is a detergent sewage directly into water bodies. Waste detergents disrupt aquatic ecosystems. Beside that, phosphate as filler of detergent can caused eutrophication in waterways. he study aims to assess the concentration of detergents and phosphates, comparing the amount of use of detergent in each research area, and the influence of detergent phosphate pollution of chemical physical factor of river water, also aquatic organisms (phytoplankton ) as bio-indicators of organic pollution. This study used a survey method with purposive sampling method. Data collection was took three times in three research areas, upstream (Dinoyo and Ketawanggede), middle ( Penanggungan and Samaan) and downstream (Oro - oro Dowo and Kiduldalem). Sampling was carried out with considering the speed of the river flow and peak activity in the household wash. Detergents and phosphate concentration compared with Keputusan Gubernur No.45 Tahun 2002 and Peraturan Pemerintah No.82 Tahun 2001. Comparison of the use of detergent in each areas were analyzed by analysis of variance statistic. Effect of detergent concentration and phosphate to the physical chemical factors of river water and phytoplankton abundance analyzed by using of multiple regression statistics . The results showed : ( 1 ) concentration of detergents is not to exceed the quality standard designation yet, ranging from 0,050 to 0,309 mg / L, whereas the concentration of phosphate has goes exceed the designation of Class II quality standards ranging from 0,031 to 0,690 mg / L. ( 2 ) The average use of detergents slum society in Brantas river bank based on analysis of variance of the pathway , were significantly different in each area of study, the downstream use of detergents has declined. ( 3 ) Detergent and phosphate concentration in Brantas River influencing the change of turbidity about 61,6 % , dissolved oxygen ( DO ) 47,6% and a pH 15%. Concentration of phosphate detergents and also gives effect to the abundance of phytoplankton at 12,6 % .