Impacts of magnesium sulfate and calcium superphosphate on nitrogen conservation, humification, and fertilizer effectiveness during corn starch residue-soybean meal-oyster shell co-composting
文献类型：期刊论文
| 作者 | Xie, Min1,3; Zhang, Yuxue3; Wang, Derui3; Zeng, Yang2; Feng, Dawei3 |
| 刊名 | JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
 |
| 出版日期 | 2026-02-01 |
| 卷号 | 14期号:1页码:14 |
| 关键词 | Oyster shell waste Calcium superphosphate Magnesium sulfate Nitrogen retention Humification Fertilizer efficiency |
| ISSN号 | 2213-2929 |
| DOI | 10.1016/j.jece.2025.120875 |
| 通讯作者 | Feng, Dawei(dwfeng@yic.ac.cn) |
| 英文摘要 | The rapid development of the aquaculture industry has led to substantial accumulation of oyster shell waste, creating an urgent need for effective treatment methods. Composting presents a promising solution. Due to their high alkalinity, direct composting of oyster shells is often inefficient. This study investigated the effects of magnesium sulfate (MS) and calcium superphosphate (CS) as mineral additives on the co-composting process of oyster shells with organic waste, focusing particularly on nitrogen retention, humification efficiency, and fertilizer value. The results demonstrated that CS facilitated conversion of humic precursors (reducing sugars, amino acids, polyphenols), increasing humification rate and extent. The CS treatment yielded the highest levels of humic substances (168.28 g/kg), humic acid (136.83 g/kg), and HA/FA ratio of 4.35 at the end of composting. In contrast, treatments incorporating MS showed lower maturity and higher electrical conductivity. X-ray diffraction analysis confirmed struvite (MgNH4PO4 & sdot;6H2O) formation in MS + CS, which mitigated NH3 emissions and reduced nitrogen loss, thereby enhancing the fertilizing potential of the products. Although all matured composts promoted Chinese cabbage growth, the CS treatment exhibited the most pronounced effect. In conclusion, calcium superphosphate effectively optimizes the co-composting of oyster shells by significantly improving compost quality and fertilizer efficiency, whereas the addition of magnesium sulfate must be carefully regulated to avoid negative impacts. This research provides a practical technical pathway for sustainable oyster shell waste utilization and acidic soil amendment. |
| WOS关键词 | ORGANIC-MATTER DEGRADATION ; FERMENTATION ; ADDITIVES ; BIOCHAR ; WASTE |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001656464100001 |
| 资助机构 | National Natural Science Foundation of China |
| 源URL | [http://ir.yic.ac.cn/handle/133337/41998]  |
| 专题 | 海岸带生物学与生物资源利用重点实验室 |
| 通讯作者 | Feng, Dawei |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Shandong Univ, Sch Environm Sci & Engn, Qingdao 266237, Peoples R China 3.Chinese Acad Sci, Yantai Inst Coastal Zone Res, 17 Chunhui Rd, Yantai 264003, Shandong, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xie, Min,Zhang, Yuxue,Wang, Derui,et al. Impacts of magnesium sulfate and calcium superphosphate on nitrogen conservation, humification, and fertilizer effectiveness during corn starch residue-soybean meal-oyster shell co-composting[J]. JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING,2026,14(1):14. |
| APA | Xie, Min,Zhang, Yuxue,Wang, Derui,Zeng, Yang,&Feng, Dawei.(2026).Impacts of magnesium sulfate and calcium superphosphate on nitrogen conservation, humification, and fertilizer effectiveness during corn starch residue-soybean meal-oyster shell co-composting.JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING,14(1),14. |
| MLA | Xie, Min,et al."Impacts of magnesium sulfate and calcium superphosphate on nitrogen conservation, humification, and fertilizer effectiveness during corn starch residue-soybean meal-oyster shell co-composting".JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING 14.1(2026):14. |
入库方式： OAI收割
来源：烟台海岸带研究所
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