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      Reuse of Sewage Sludge as Organic Agricultural Products: An Efficient Technology-Based Initiative

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          Abstract

          Rapid urbanisation has led to a dramatic increase in sewage sludge production. There are limited methods of managing sewage sludge along with high energy and monetary investment. A cost-effective, environment-friendly, and sustainable solution needs to be developed for the management of sewage sludge. In the current study, sludge from the Jagjeetpur sewage treatment plant (STP) had been collected, composted, and characterized during January and February 2022. A comparison of STP sludge compost and compost made from farmyard manure showed the presence of essential agricultural nutrients in them, due to which they find application for plant growth. Two products, Jaivik Poshak and Jaivik Prom, containing farmyard compost, were compared with the amended version of the same, containing compost from STP sludge instead of normal compost. The results showed that the modified Jaivik Poshak was the best for maintaining pH and increasing electrical conductivity. The available nitrogen in the soil upon its application increased by 1.6 times ( p<0.001 ) with respect to control, and it brought about 100% tomato seed germination within sixteen days. The above finding has been validated by goodness of fit value, factor analysis, and hierarchical analysis. The product, modified Jaivik Prom increased organic carbon content and brought about 5.81 and 8 times the enhancement in available phosphorous ( p<0.001 ) and potassium ( p<0.001 ) content in soil, respectively, with respect to the control set. The heavy metal content in the soil as a result of all types of treatment was within the permissible limit. This study thus proves that sludge from STP may be used for agricultural uses after proper fortification and testing to convert waste to wealth along with environmental sustenance.

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          Sewage sludge disposal strategies for sustainable development

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            Comparative assessment of municipal sewage sludge incineration, gasification and pyrolysis for a sustainable sludge-to-energy management in Greece

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              Sewage sludge combustion

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                Author and article information

                Contributors
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                Journal
                Applied and Environmental Soil Science
                Applied and Environmental Soil Science
                Wiley
                1687-7675
                1687-7667
                February 7 2024
                February 7 2024
                : 2024
                : 1-16
                Affiliations
                [1 ]Herbal Research Division, Patanjali Research Foundation, Haridwar, Uttarakhand 249404, India
                [2 ]University of Patanjali, Haridwar, Uttarakhand, India
                [3 ]Patanjali Ayurved Private Limited, Prasauni 3, Bara Birgunj Kalaiya Road, Kalaiya, Nepal
                Article
                10.1155/2024/1433973
                dd7f3274-1df5-413a-b47e-23dacdf92f07
                © 2024

                https://creativecommons.org/licenses/by/4.0/

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