Physicochemical Characteristic of Sago Hampas and Sago Wastewater in Luwu Regency

Hammado Nururrahmah,Budiyono Budiyono,Utomo Sudarno,Hadiyanto Hadiyanto,Maryono Maryono,Budi Warsito

doi:10.1051/e3sconf/20187307007

Abstract

A study was carried out to determine the physicochemical characteristics of sago hampas and sago wastewater from sago processing mill in Luwu Regency. The sago hampas was used is the residue of sago starch filtration of unrefined raw fiber. The sago wastewater was taken from processing mill are discharged into river. The points of sago wastewater sampling were undertaken in three different points, namely first wastewater (A1), the last wastewater (A2), and water that has been discharged into the river (A3). The sago hampas and sago wastewater processing mill was obtained by Spectrofotometric, Atomic Adsorption Spectroscopy, and analytical methods. The sago hampas content was found at C-Organic 33.01%; N-total 1.66%; C/N ratio 20; P2O5 0.04%, and minerals which are Calsium 27716 ppm, Magnesium 4247 ppm, and Sulfur 743 ppm. COD concentration sago from wastewater was found at A3 point which is 177.3985 mg/l; N-total 0.1%; Phospor 0.01 ppm; Kalium 10.46 ppm; Magnesium 5.84 ppm; and Calsium 0.62 ppm. The high content of organic materials and minerals in sago hampas and sago wastewater needs to be processed before discharging it into the river. The results of this study indicate that sago waste can be used as a feedstock biogas production.

Highlights

Indonesia poses approximately 1.2 million ha of sago plantation producing around 8.4-13.6 million tons of sago annually
In Indonesia, the majority of sago plants are found in Papua, West Papua, Maluku, North Sulawesi, Central Sulawesi, Southeast Sulawesi, South Sulawesi, South Kalimantan, West Kalimantan, Jambi, West Sumatra, and Riau [1]
This study aimed to investigate the viability of biogas conversion using Sago waste by initially detecting the physicochemical characteristic of sago hampas and wastewater

Summary

Introduction

Indonesia poses approximately 1.2 million ha of sago plantation producing around 8.4-13.6 million tons of sago annually. Of this number, Papua owns about 90% of the sago area. In South Sulawesi, especially in Tana Luwu (Luwu District, Palopo City, Luwu Utara Regency, and East Luwu Regency), sago becomes the main source of food and income for the local community. Sago becomes the main food for the local community in some areas in Indonesia as it contains high nutrient and calorie sources it may replace the use of rice. Sago is one of the best carbohydrate-producing plants which contain 84.7 gram carbohydrate in every 100 gram of sago starch. The comparison of calories counted 100 gram for some common starch sources such as corns, cassavas, sweet potatoes and sago are 361, 195, 143, and 353 respectively [2]

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