Abstract In the coming decades, humanity will be faced with the challenge of feeding 10 billion people and managing large quantities of solid waste. These issues can be mitigated through the development of sustainable fertilizers derived from electrochemically treated waste activated sludge (EWAS) while promoting a nitrogen circular economy. This study investigates the chemistry of novel fertilizers to determine their soil chemistry dynamics. Untreated waste activated sludge (WAS) and EWAS were applied to agricultural soil and potting mix, and the resulting aqueous samples were analyzed to determine nitrogen, phosphorous, and carbon adsorption and release behaviors. Commercial inorganic and natural fertilizers were utilized for comparison. X‐ray absorption near‐edge structure (XANES) spectroscopy was performed to characterize phosphorus speciation in the solid phases of the novel fertilizers. Results indicated that EWAS and WAS samples released less total nitrogen into solution than other treatments due to organoclay complexation of biomolecules and differences in the solubility of the nitrogen species. Samples containing EWAS released a higher percentage of organic and total carbon into solution due to the deformation of the structure of the organic matter by the alkaline electrolysis process. The solubility of nitrogen and carbon in the sludge was increased by the electrochemical process. Solid‐phase phosphorus in EWAS and WAS was characterized by XANES analysis as struvite, which is a novel finding with important implications for P management from waste‐based fertilizers. These experimental findings suggest that fertilizing with EWAS could result in reduced runoff and improved soil health while facilitating domestic fertilizer production.

Katherine Coyle

Jedidian Adjei

Ehsan Abbasi

Princess Vargas

Lindsey Slaughter

Christian E. Alvarez‐Pugliese

Gerardine G. Botte

Matthew G. Siebecker

Soil Science Society of America Journal

SSSA JOURNAL 发表土壤物理学内容；水文学；土壤化学；土壤生物学；土壤生物化学；土壤肥力；植物营养；土壤学；水土保持与管理；森林、山脉和荒地土壤；土壤和植物分析；土壤矿物学，湿地土壤。观众是研究人员、学生、土壤科学家、水文学家、土壤学家、地质学家、农学家、树木学家、生态学家、工程师、认证从业者、土壤微生物学家和环保主义者。该杂志发表原创研究、问题论文、评论、注释、评论和致编辑的信以及书评。如果被编委接受，邀请论文可以在期刊上发表。

The Soil Science Society of America Journal publishes research related to soil science, including soil physics, hydrology, soil chemistry, soil biology, soil biochemistry, soil fertility, plant nutrition, soil science, soil conservation and management, soils of forests, mountains, and wastelands, soil and plant analysis, soil mineralogy, and wetland soils. The journal's audience includes researchers, students, soil scientists, hydrologists, soil scientists, geologists, agronomists, foresters, ecologists, engineers, certified practitioners, soil microbiologists, and environmentalists. The journal accepts original research, issue papers, reviews, comments, letters to the editor, and book reviews. Invited papers may also be published in the journal if accepted by the editorial board.

《Soil Science Society of America Journal》发表与土壤科学相关的研究，包括土壤物理学、水文学、土壤化学、土壤生物学、土壤生物化学、土壤肥力、植物营养、土壤学、水土保持与管理、森林、山脉和荒地土壤、土壤和植物分析、土壤矿物学以及湿地土壤等领域。该期刊的读者群体包括研究人员、学生、土壤科学家、水文学家、土壤学家、地质学家、农学家、树木学家、生态学家、工程师、认证从业者、土壤微生物学家和环保主义者。期刊接受原创研究、问题论文、评论、注释、致编辑的信件以及书评。如果被编委接受，邀请论文也可以在期刊上发表。

Category	Quartile
农林科学	3
农林科学, 土壤科学	4

Novel slow‐release fertilizer promotes nitrogen circularity while increasing soil organic carbon

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Journal Info

Category	Quartile
SOIL SCIENCE	2