Valorization of tannery solid wastes for sustainable enzyme induced carbonate precipitation process

Sujiritha, Parthasarathy Baskaran; Vikash, Vijan Lal; Antony, George Sebastian; Ponesakki, Ganesan; Ayyadurai, Niraikulam; Nakashima, Kazunori; Kamini, Numbi Ramudu

doi:10.1016/j.chemosphere.2022.136533

Cited by 6 publications

(1 citation statement)

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“…Therefore, some researchers have tried to use some low-cost production and domestic wastes as a calcium source, ammonium source, or additives for reactions in experiments, hoping to control costs and strengthen performance of improved soil. For example, solid leather waste has been used to promote the carbonate precipitation process [ 129 ]. Lime solution was used as a substitute for a calcium source, and the leather hydrolysate powder obtained from thermal hydrolysis of leather waste residues was used to produce urease for the EICP reaction.…”

Section: Future Prospects For New Ground Consolidation Technologies L...mentioning

confidence: 99%

Naturally Derived Cements Learned from the Wisdom of Ancestors: A Literature Review Based on the Experiences of Ancient China, India and Rome

et al. 2023

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For over a thousand years, many ancient cements have remained durable despite long-term exposure to atmospheric or humid agents. This review paper summarizes technologies of worldwide ancient architectures which have shown remarkable durability that has preserved them over thousands of years of constant erosion. We aim to identify the influence of organic and inorganic additions in altering cement properties and take these lost and forgotten technologies to the production frontline. The types of additions were usually decided based on the local environment and purpose of the structure. The ancient Romans built magnificent structures by making hydraulic cement using volcanic ash. The ancient Chinese introduced sticky rice and other local materials to improve the properties of pure lime cement. A variety of organic and inorganic additions used in traditional lime cement not only changes its properties but also improves its durability for centuries. The benefits they bring to cement may also be useful in enzyme-induced carbonate precipitation (EICP) and microbially induced carbonate precipitation (MICP) fields. For instance, sticky rice has been confirmed to play a crucial role in regulating calcite crystal growth and providing interior hydrophobic conditions, which contribute to improving the strength and durability of EICP‑ and MICP-treated samples in a sustainable way.

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Section: Future Prospects For New Ground Consolidation Technologies L...mentioning

confidence: 99%