RANCANGAN INSTALASI PENGOLAHAN AIR LIMBAH INDUSTRI TEPUNG AREN DI KABUPATEN KLATEN PROVINSI JAWA TENGAH SEBAGAI ALTERNATIF PENGELOLAAN LINGKUNGAN

Donan Wijaya, ST., Dr. Slamet Suprayogi, MS.

2012 | Tesis | S2 Magister Pengelolaan Lingkungan

Penelitian ini bertujuan untuk mengetahui karakteristik limbah cair dari industri tepung aren, mengetahui sebaran industri penghasil limbah cair, menghitung besaran debit limbah cair, dan merencanakan sistem instalasi pengolahan air limbah (IPAL). Metode penelitian adalah kombinasi antara survei lapangan untuk pengumpulan data, analisis sampel di laboratorium, dan analisis studio rancang bangun. Teknik pengambilan sampel yang digunakan adalah purposive sampling. Data yang diambil adalah jumlah industri, volume bak pada masing-masing industri, titik koordinat, sampel air limbah dan air sumur warga. Data sebaran industri dianalisis menggunakan sistem informasi geografis, sedangkan untuk data kualitas air limbah dan air tanah dilakukan analisis deskripsi kuantitatif dan deskriptif kualitatif. Hasil yang diperoleh dari uji laboratorium bahwa parameter Total Disolved Solid, Total Suspended Solid, Derajat Keasaman (pH), Chrom, Biological Oxygen Demand (BOD), Chemical Oxygen Demand (COD), dan Minyak melebihi baku mutu Kepmen LH No. KEP-51/MENLH/10/1995. Posisi industri terbanyak berada di permukiman di perbatasan antara Desa Daleman dan Desa Pucangmiliran yang dibatasi oleh Sungai Belukan sehingga berpotensi tercemar limbah. Terdapat 54 industri pembuatan tepung aren dengan debit total limbah cair sebesar 216,06 m3/hari. Instalasi pengolahan air limbah (IPAL) yang digunakan adalah cascade aerasi 6 tingkat dengan ketinggian 1,8 m dan rectangular sedimentasi dengan ukuran panjang 4,64 m, lebar 1,16 m, dan tinggi 2,5 m.

This study aims to determine the characteristics of liquid waste of palm flour industry, to know the distribution of industrial liquid waste, to calculate the amount of liquid waste discharge, and to plan the system of wastewater treatment plant (WWTP). The research methods are the combination of field surveys for data collection, analysis of samples in the laboratory, and analysis of design studio. The sampling technique is purposive sampling. The data obtained are the number of industries, the volume of the tub in each industry, the coordinate points, the samples of wastewater and the water wells citizens. Industrial distribution data were analyzed using geographic information system, while for the data quality of wastewater and ground water performed analysis of quantitative descriptive and qualitative descriptions. The results obtained from laboratory tests were the parameters of Total Disolved Solid, Total Suspended Solid, Degree of acidity (pH), Chrom, Biological Oxygen Demand (BOD), Chemical Oxygen Demand (COD), and Oil exceed the quality standard of the Regulation of Environmental Minister KEP-51/MENLH/10/1995. The position of the largest industries are in the settlements on the frontier between the Daleman Village and Pucangmiliran Village that bounded by the Belukan River thereby potentially contaminated waste. There are 54 palm flour-making industries with a total discharge of liquid waste 216,06 m3/day. Wastewater treatment plant (WWTP) used is the cascade aeration 6 levels with a height of 1,8 m and the rectangular sedimentation with a length 4,64 m, width 1,16 m, and height 2,5 m.

Kata Kunci : Industri tepung aren; Limbah cair; IPAL