KUALITAS LIMBAH CAIR EKSTRAKSI SAGU (Metroxylon Sp.) MENGGUNAKAN ALAT PENYARING SISTEM BERLAPIS PADA BEBERAPA WAKTU PENYIMPANAN

Abstract

In order to produce sago starch, sago bar had to be crushed and extracted using water to separate starch from other compounds. In the sago processing, a lot of water was used to extract sago starch and finally was discarded as liquid waste. In this study, the quality of sago liquid waste, before and after applying a layer-based filter containing: coir, charcoal, gravel and sand, was measured. The study was designed with a different time of storage of the Sago liquid waste, namely 0,1,2,3,4, and 5 day of storage. Each day the liquid waste was filterd using layer-based filter, and then the quality of the liquid waste was compared. The parameters measured were total suspended solids, total dissolved solids, final pH, and physical parameters such as smell and color. The results of this study showed that quality decrese of sago liquid waste accurs during 5 days of storage as indicated by increasing the total suspended solids (up to 1400 mg/L) and the dissolved solids (up to 2000 mg/L), decresing the pH value (down to 5) and arising unpleasant smells. Furthermore, the use of the layer-based filter was effective enough to restore the quality of the sago liquid water by decreasing the total solids, neutralizing the pH value and reducing the unpleasant smell.

Pengaruh Jenis Sumber Nitrogen Terhadap Karakteristik Nata De Sago

“…Selain itu, lindi sagu yang dibuang begitu saja secara terus menerus ke sungai atau lahan akan menurunkan kualitas perairan dan memberikan dampak negatif terhadap lingkungan (Apriyanto et al, 2021). Oleh karena itu, perlu usaha untuk meminimalisir dampak dari pembuangan lindi sagu tersebut dengan memanfaatkan lindi sagu sebagai bahan baku pembuatan nata de sago (Gultom et al, 2016).…”

Development of A Hybrid Method by Integrating Electrocoagulation Countinous System with Activated Charcoal Adsorption to Treat Sago Wastewater

“…Where the initial BOD levels were 297.00 mg/L to 36.90 mg/L with a decreasing efficiency of 87.58%. The COD value indicates the total content of organic substances, both biodegradable and non-biodegradable, while the BOD value only measures the biodegradable part [18].…”

“…Based on Indonesian plantation statistics for 2016-2018 and referring to the 2018 national sago production projection of 281,898 tons, nationally the total sago liquid waste produced is 7,800,000 m 3 . The waste still contains high organic matter, fiber, 4% unextracted starch, nitrogenous solution, and cyanoglucoside [1]. Sago liquid waste is generally acidic, has foul smells, and has a high solids concentration.…”