Fertilizers from monosodium glutamate waste encapsulated with chitosan nano-zeolite

Abstract

Fertilizers that are safe for the environment are highly necessary to increase the agricultural productivity in handling critical land conditions, where nutrients contained in the soil are far below the normal levels of 4–5 %. This nutrient crushing occurs due to the use of synthetic chemical fertilizers, pesticides, and excessive chemical drugs. Therefore, the authors make fertilizer with a high slow release of zeolite, chitosan from the skin shell and monosodium glutamate (MSG) waste. The method used is demineralization, deproteination, and deacetylation to obtain chitosan. After that, the zeolite encapsulation was activated by chitosan and MSG waste. The product obtained is in the form of a milling solid using HEM to obtain the results of nanoparticles. These results were characterized by FTIR, SEM-EDX, XRD. XRD results refer at (angle (2θ): 20) containing NH2 compounds, at (angle (2θ): 21–23) containing SiO2, then at spectra (angles (2θ): 25–28) containing LiAl SiO4 compounds then at (angle (2θ): 30–34) containing C and at (angle (2θ): 42–44) containing FeO4 P. SEM results show MSG micrographs wrapped in nano-zeolite and nano-chitosan fertilizers with a sample size of 90-100nm and it is known that in MSG waste fertilizer encapsulated with nano zeolite-chitosan containing micronutrients in fertilizers such as Si as much as 10.7 %, sodium 11.8 %, nitrogen 11.8 %, 1.2 % iron, potassium 0.3 % and 0.1 % phosphorus. The FTIR results showed a peak in the fingerprint area of the MSG-zeolite-chitosan waste spectra that identified the presence of macro nutrients N, P, K, Ca, Mg and several micro elements such as Cu, and Zn in addition to other elements needed in slow release fertilizers.