EFISIENSI METODE MULTI SOIL LAYERING (MSL) DALAM PENYISIHAN COD DARI LIMBAH CAIR HOTEL (Studi Kasus: Hotel �X� Padang)

Abstract

ABSTRAKDalam penelitian dilakukan pengolahan limbah cair Hotel yang bersumber dari dapur dan laundri dengan metode Multi Soil Layering (MSL). Tujuan penelitian ini untuk menentukan efisiensi penyisihan COD dan mempelajari pengaruh faktor variasi material organik dalam campuran tanah pada lapisan anaerob dan variasi Hydraulic Loading Rate (HLR) terhadap efisiensi pengolahan limbah cair hotel dengan metode MSL. Dua buah reaktor MSL berdimensi 50 x 15 x 100 cm dengan lapisan batuan yang sama pada kedua reaktor berupa kerikil berukuran 35 mm serta lapisan anaerob berupa campuran tanah dengan arang (reaktor 1) dan campuran tanah dengan serbuk gergaji (reaktor 2) dengan rasio komposisi 2 : 1. Limbah dialirkan pada masing-masing reaktor dengan variasi HLR 500, 750, dan 1.000 l/m2hari. Konsentrasi COD sebelum diolah adalah 132,600201,240 mg/l, setelah diolah dengan MSL konsentrasi berubah menjadi 12,48088,920 mg/l. Secara umum, variasi material organik dalam campuran tanah tidak begitu berpengaruh pada penyisihan COD. Variasi HLR cukup berpengaruh, dimana HLR 500 l/m2hari memberikan efisiensi penyisihan COD yang lebih tinggi. Efisiensi penyisihan COD yang diperoleh pada penelitian ini berturut-turut pada reactor 1 berkisar antara 55 -90 % dan pada reactor 2 berkisar antara 56-89%. Hasil menunjukkan bahwa kedua reaktor mampu menyisihkan COD pada limbah cair hotel.Kata Kunci: COD, limbah cair hotel, multi soil layering (MSL)ABSTRACTResearch COD removal from hotel wastewater stemmed from laundry and kitchen with Multi Soil Layering method (MSL) was conducted. The aim were to observe COD removal efficiency and to study the effect of organic material variation in soil as the anaerob layer as well as the effect of various hydraulic loading rate (HLR). In this research, there were two MSL reactors with dimension of 50 x 15 x 100 cm. Aerob layers of both reactors in the form of gravel 3-5 mm sized while anaerob layers are composed from soil mixed with charcoal (reactor 1) and soil mixed with sawdust (reactor 2) with ratio 2:1. HLR of wastewater for each reactor are 500, 750, and 1.000 l/m2day. Concentration of COD was 132,600-201,240 mg/l. COD concentration successively reduced to 12,480-88,920 mg/l.This result indicated both reactors can cast aside COD and also neutralize hotel liquid waste pH. In general, organic material variation of in soil mixture, that is sawdust and charcoal did not show any significant influence. HLR of 500 l / m2/day allowed the best removal efficiency at each contaminant parameters. As a whole efficiency removal of COD at this research successively at reactor 1 ranged from 55-90%, and 56-89%.Key Words:COD, hotel wastewater, multi soil layering (MSL)

Efektivitas Multi Soil Layering Dalam Mereduksi Limbah Cair Industri Kelapa

“…Zona anaerob terdapat pada lapisan campuran tanah. Proses pengolahan limbah cair dalam MSL terdiri atas dekomposisi, fiksasi, nitrifikasi, denitrifikasi, filtrasi, adsorpsi, dan absorpsi (An et al, 2016) Dari beberapa penelitian yang telah dilakukan membuktikan bahwa metoda MSL cukup efektif digunakan dalam mengolah limbah cair domestik, air sungai tercemar dan limbah cair industri seperti limbah cair industri santan kelapa (Putra et al, 2018), limbah minyak goreng (Salmariza, 2017), limbah cair kelapa sawit (Mutia et al, 2015), limbah cair hotel (Elystia, 2012).…”

Penggunaan Metode Multi Soil Layering (MSL) untuk Penyisihan Pencemar pada Limbah Cair Industri Pembekuan Ikan

“…These layers are separated by an intermediate layer of mixed zeolite. The MSL method has been applied to hotel wastewater (Mutia et al, 2015) in addition to palm oil wastewater (Elystia et al, 2012).…”

Efficiency of Multi Soil Layering (MSL) System in A Household Scale of Wastewater Treatment Using Environmental Friendly Materials

“…Until now, MSL research in Indonesia is still related to hotel wastewater (Elystia et al, 2012), ethanol industry wastewater, palm oil liquid waste (Mutia et al, 2015), and paddy wastewater. Therefore, there is a need for further studies on the efficient use of the Multi Soil Layering method to treat domestic wastewater (greywater) with environmentally friendly materials that are available in Indonesia.…”