Article(id=1321893391726653648, tenantId=1146029695717560320, journalId=1225396423026438145, issueId=1321893331622286028, articleNumber=null, orderNo=null, doi=null, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1751299200000, receivedDateStr=2025-07-01, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1793093544178, onlineDateStr=2026-10-27, pubDate=1784908800000, pubDateStr=2026-07-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1793093544178, onlineIssueDateStr=2026-10-27, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1793093544178, creator=13701087609, updateTime=1793093544178, updator=13701087609, issue=Issue{id=1321893331622286028, tenantId=1146029695717560320, journalId=1225396423026438145, year='2026', volume='46', issue='7', pageStart='1', pageEnd='320', issueExtLink='null', onlineDate='null', pubDate='1784908800000', pubDateStr='2026-07-25', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1793093529849, creator='13701087609', updateTime=1793094587578, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1321897768357048353, tenantId=1146029695717560320, journalId=1225396423026438145, issueId=1321893331622286028, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1321897768357048354, tenantId=1146029695717560320, journalId=1225396423026438145, issueId=1321893331622286028, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=301, endPage=309, ext={EN=ArticleExt(id=1321893391927980241, articleId=1321893391726653648, tenantId=1146029695717560320, journalId=1225396423026438145, language=EN, title=Research on the Application of Compound Doped APAM in the Treatment of Limestone Sand-Making Wastewater, columnId=null, journalTitle=Mining Research and Development, columnName=null, runingTitle=null, highlight=null, articleAbstract=

Anionic polyacrylamide (APAM) is the most widely used flocculant in the mining sand-making industry. The phenomenon of compound doping during its production is relatively common, which leads to the degradation of APAM flocculation performance. Flocculation sedimentation tests were conducted to systematically evaluate the effects of five compounds, including sodium chloride (NaCl), on the flocculation performance of APAM. The characteristics of doped APAM were characterized by using techniques such as X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), and chemical titration. Cost-benefit analysis was employed to quantify the economic impact of the doping behavior. The results show that APAM achieves the optimal flocculation effect at a mass concentration of 0.1% and a dosage of 24 g/t. High compound dosages (≥30%) severely degrade the flocculation performance of APAM. Specifically, when the NaCl dosage is 50%, the median particle size of sludge flocs decreases from 95.3 μm to 41.3 μm, a reduction of 56.7%, and the settling time is extended to more than double, resulting in a significant decline in wastewater treatment efficiency. The established combined detection system integrating solid content measurement, FTIR, XRD, and chemical titration can specifically identify the doping components. The economic analysis indicates that 50% NaCl doping can reduce the production cost of APAM to 6 150 yuan/t, with a profit margin of 48.75%. The research results can provide a technical basis for the quality control of flocculants and the optimization of water treatment systems in sand-making plant.

, authors=Yi Luo¹, Jiacheng Zhu^{1, 2}, Yubin Qian³, Wenxu Zhang⁴, Tao Yan², authorsList=Yi Luo, Jiacheng Zhu, Yubin Qian, Wenxu Zhang, Tao Yan, authorCompany=null, correspAuthors=Tao Yan, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1321893392200610002, articleId=1321893391726653648, tenantId=1146029695717560320, journalId=1225396423026438145, language=CN, title=化合物掺杂APAM在石灰岩制砂废水处理中的应用研究, columnId=1226462297560892399, journalTitle=矿业研究与开发, columnName=选矿与资源综合利用, runingTitle=null, highlight=null, articleAbstract=

阴离子型聚丙烯酰胺（APAM）是矿业制砂领域应用最为广泛的絮凝剂，在其生产过程中掺入化合物的现象较为普遍，会造成APAM絮凝性能劣化的问题。通过开展絮凝沉降试验，系统评估氯化钠（NaCl）等5种化合物掺入对APAM絮凝性能的影响，采用X射线衍射（XRD）、傅里叶变换红外光谱（FTIR）及化学滴定等技术表征掺杂APAM特性，结合成本效益分析量化掺杂行为的经济性影响。结果表明：APAM在质量浓度为0.1%、掺量为24 g/t时絮凝效果最佳；高掺量化合物（≥30%）会严重劣化APAM的絮凝性能，其中NaCl掺量为50%时，污泥絮体中值粒径从95.3 μm降至41.3 μm，降幅达56.7%，沉降时间延长至原来的2倍以上，导致废水处理效率显著下降；建立的固含量测定-FTIR-XRD-化学滴定联用检测体系可特异性识别掺杂成分。经济性分析显示，NaCl掺量为50%时，可使APAM生产成本降至6 150元，利润率为48.75%，研究结果可为制砂厂絮凝剂质量控制及水处理系统优化提供技术依据。

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罗义（1979—），男，河北保定人，硕士，副教授，主要从事工业废水处理等方面的研究。E-mail:luoyi0518@126.com

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罗义（1979—），男，河北保定人，硕士，副教授，主要从事工业废水处理等方面的研究。E-mail:luoyi0518@126.com

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