Browsing by Author "Jatav, S.S."

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    Release Behavior of Phosphorus from Bentonite Clay-Polymer Composites with Varying Cross-Linker Levels, and Neutralization Degree
    (2023) Verma, Y.; Datta, S.C.; Mandzhieva, S.S.; Jatav, S.S.; Perelomov, L.; Burachevskaya, M.; Rajput, V.D.
    Abstract: Being of crucial significance for agrarian production, phosphorus and its forthcoming availability have drawn increasing attention over the last few years. Increasing phosphorus use efficiency without adverse effects to the environment is one of biggest challenges of agriculture. The use of clay-polymer composites loaded with phosphorus has provided solution to this problem. According to available data, for the first time in our laboratory, we have synthesized clay-polymer composites using modified bentonite, with different percentage of neutralization, as well as levels of cross-linking agent. Different types of clay, i.e., bentonite and organically modified bentonite, two levels (40 and 60%) of neutralization degree, and two levels (0.5 and 1%) of cross-linker were used to accomplish the target. The synthesized composites were subsequently loaded with diammonium phosphate fertilizer (14 grams diammonium phosphate fertilizer per unit weight of clay-polymer composites) and characterized via X-ray diffraction, Fourier transform infrared spectroscopy, transmission electronic microscopy, and scanning electron microscopy. Research findings indicated that highest cumulative phosphorus recovery (0.07 mg/kg soil in Alfisol and 0.26 mg/kg soil in Inceptisol) was recorded in the product synthesized from modified organo-clay in which neutralization degree was 60% and cross-linker level was 0.5%. Similarly, highest soil available phosphorus (7.2 mg/kg in Alfisol and 10.4 mg/kg in Inceptisol) was recorded in the same composite. Therefore, clay-polymer composites prepared from organo-clay can be considered as a promising carrier of phosphorus for enhancing its use efficiency. � 2023, Pleiades Publishing, Ltd.
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    Sewage sludge quality assessment of sewage treatment plant, Bhagwanpur, Varanasi and its safe utilization in agriculture
    (Triveni Enterprises, 2021) Jatav, H.S.; Singh, S.K.; Jatav, S.S.; Latare, A.M.; Kumar, V.; Singh, P.
    Aim: To study about the sewage sludge treatment process and its physico-biochemical analysis of sewage sludge for feasible use. Methodology: Sewage sludge samples were collected from sewage treatment plant, Bhagwanpur, Varanasi, India and processed through 2 mm sieve and further analyzed for different physical, chemical and biological analysis and compared with standard. Results: Sewage sludge consisted multielement along with a good amount of organic matter. However, sewage sludge also contained some amount of heavy metals and organic pollutants that can adversely affect soil micro-organisms. Interpretation: Sewage sludge application in soil offers essential nutrients for plant growth and decreases environmental and economic factors that restrict landfill or incineration disposal of sewage sludge. However, a careful assessment of the characteristics of soil and sewage sludge, as well as plant species to be grown, is required prior to soil application of sewage sludge. The present study will support the use of sewage sludge in agriculture to improve the soil health with a safe limit application. � 2021 Triveni Enterprises. All rights reserved.