Optimization of Organic Biopolymer as Green Inhibitor for Silica Treatment in Geothermal Field

Abstract This paper explores the challenges posed by silica scale, a solid deposit that forms in geothermal water due to temperature, pressure, or pH changes. The silica scale formation can lead to pipe blockages, reduced flow rates, and increased operational costs. The research focuses on biopolymer’s potential as a solution to prevent silica scale in geothermal energy systems. Biopolymers, which are natural polymers derived from sources like plants, animals, or microorganisms, present several advantages over synthetic polymers. These include biodegradability, biocompatibility, and renewability, making them eco-friendly and cost-effective inhibitors for silica scale prevention. The current investigation entailed a meticulous evaluation of supplementary inhibitor compounds sourced from bio-oil and phytochemicals. This assessment was conducted within a controlled laboratory setting, utilizing a pressure reactor and a brine sample. These new formulation organic inhibitors demonstrated considerable potential in mitigating scale deposition. It also alters the morphology and size of silica particles, reducing their ability to precipitate and form scale. Lastly, the paper outlines various methods to assess the effectiveness of a silica antiscalant agent, taking into account the type of agent, system conditions, and the desired outcome. This comprehensive study provides valuable insights into the use of biopolymers as a potential solution for silica scale prevention in geothermal energy systems.