SURFACE MODIFICATION ON BIOCHAR COMPOSITES BASED ON DOLOMITE AND SOYBEAN HULL AS PHOSPHORUS ADSORBENT IN WASTE WATER
Dina Wahyu Indriani1,2, Stella Jovita1, Holilah Holilah3, Hendrix Yulis Setiawan4, Yatim Lailun Ni^Mah1, Didik Prasetyoko1st Try to Submit This Sample Abstract

1Department of Chemistry, Faculty of Science and Analytical Data, Institut Teknologi Sepuluh Nopember, Jl. Arif Rahman Hakim, Kampus ITS Keputih-Sukolilo, Surabaya, 60111, Indonesia.
2Department of Bioprocess Engineering, Faculty of Agricultural Technology, Universitas Brawijaya, Jalan Veteran Malang, 65144, Indonesia
3Research Center for Biomass and Bioproducts, National Research and Innovation Agency of Indonesia (BRIN), Cibinong, 16911, Indonesia
4Department of Agroindustrial Technology, Faculty of Agricultural Technology, Universitas Brawijaya, Jalan Veteran Malang, 65144, Indonesia

Corresponding author: didikp[at]chem.its.ac.id- didik.prasetyoko[at]gmail.com

Abstract

Investigation of the adsorption behavior characteristics of biochar composite materials is of particular concern for sustainable new material innovations. Various types of agricultural waste, including corn cobs, cassava peels, soybean hull, bamboo, rice husks and other similar materials, can increase their value when transformed into new materials. The valorization of this material can be carried out by the co-pyrolysis method by making biochar so that it becomes surface modifications of biochar composite. The purpose of this co-pyrolysis method is to produce biochar composites with optimum characteristics which can be used as adsorbents to overcome environmental problems such as water pollution. The purpose of this study was to investigate new composite materials by exploring agricultural waste, soybean waste with a dolomite composite base using pyrolysis treatment (400, 600 and 800 C) for 2 hours with the Response Surface Methodology (RSM) optimization method of to adsorb phosphorus in waste water. The removal percentage was uptake 95 percent from 800 C of composite biochar respectively. In addition, this research also examines the mechanism of adsorption, desorption and application of phosphate from the recovery results.

Keywords: dolomite- phosphate adsorption- soybean hull- surface modifications

Topic: Waste and environmental management