第10卷,第4期2020年7月Vol. 10, No. 4
July , 2020环境工程技术学报Journal of Envionmentvi Engineering Technology 王之超,何洁,张曼丽,等•油基钻井岩屑固化体中多环芳桂释放特征"J # •环境工程技术学报,2020,10(4 ):647552.WANG Z C , HE J , ZHANG ML, et al. Release characteristics cf PAHs in oil-based drilling cuttings solidified body " J #. Journal cf Environmental Engineering Technology , 2020,10(4) : 647-652. 油基钻井岩屑固化体中多环芳怪释放特征
王之超1,何洁1,张曼丽2,蔡洪英2,黄泽春1"
1.中国环境科学研究院
2.重庆市固体废物管理中心
摘要油基钻井岩屑资源化利用的有效方式是制备成块状固化体,但固化体在应用过程中存在多环芳O 浸出的风险。采用 固体中无机组分有效量测试(NEN7371)方法和块状材料中无机组分的扩散实验(N E N7375)方法,研究固化体内荼、蔥、荧蔥、 苯并(b )荧蔥和苯并(W 苗5种多环芳O 的释放特性,评估其浸出释放风险。结果表明:5种多环芳O 的有效释放率均在2% 以下,其中苯并(W 苗有效释放率最高,浸出液中浓度超过GB/N 14848-2017(地下水质量标准》中'类限值;在静态浸泡释放 特征试验中,5种多
雷击次数环芳O 的释放集中在浸出前期,前16 d 累积释放量占64 d 累积释放总量的比值均超过78% ;5种多环芳 O 释放机理包括扩散控制、溶解释放、延滞释放、耗竭和表面冲刷,固化体中不同多环芳O 释放特征存在一定的差异,但总体 上以扩散控制为主,后期均表现为耗竭机制。
关键词 油基钻井岩屑;固化体;多环芳O ;浸出;释放特性
马钱子散
中图分类号:X705 文章编号:1674591X (2020)04 564756 doi :10. 12153/(. Psn. 1674-991X.20200013
穿孔板
Release characteristics of PAHs in oil-based drilling cuttings solidified body
WANG ZhPhxv 1, HE Jia 1, ZHANG Manli 2, CAI Honyyiny 2, HUANG Zechun 1*
收稿日期:2020-02-09
基金项目:国家重点研发计划项目(2018YFC1900103)
作者简介:王之超(1994-),男,硕士研究生,主要研究方向为固体废物处置及资源化利用,******************责任作者:黄泽春(1974—),男,研究员,博士,主要从事固体废物管理与处理处置技术研究,huangzc@ coes. ory. cn 1. Chinese Research Academy of Environmental Sciences
2. Chongqing SWib Waste Management Center
刚度矩阵Abstrah An Ofectiva wxy tv further dispose and utiOza resources is tv make oil-based drilling cuttings into blacky solidified body. However, when solidified body is used, PAHs mxy leach out. The relexsa chwwPistics of 5 kinds of polycyclic aromatic hydocsOons (PAHs) in solidified body, including naphthalene, anthrxcenv, Ouoranthena, beneo(b)fouoeantheneand beneo(a)pyeene(BaP)cweeestudoed byusongthetestmethod ofe f ectoveamountof inoryanic components in solid ( NEN7371) and the didusion Psi method of inoryanic components in bulk mateials (NEN7375)and toa s e s theoeoeachongeeoeaseeosks.Theeesuotsshowed thatthee f ectoveeeoeaseeatesofthe5 k onds of PAHs we ee a o be oow 2% . The e f e ct ove ee oease amount of BaP eiceeded theoomotongvaoueofCategoey ' in Groondwateo Quality Standard ( GB/N 148485017) ; In static immersion relexsa chwwPistic expeiments, 5 kondsofPAHseeoeased attheeaeoystage,and theoeaccumuoated eeoeaseamountatthepeevoous16 daysaccounted foemoeethan 78% ofthecumuoatovetotaoeeoeaseamountof64 days.Theeeoeasemechanosm ofthe5 kondsof PAHsoncouded do f usoon conteoo,do s ooutoon eeoease,deoayed eeoease,depoetoon and suefacewash-o f .Do f eeent PAHson sooodofoed bodyhad do f eeenteeoeasechaeacteeostocs,bu
ton geneeao,theyweeemaonoyeeoeased on theway ofdo f usoon conteoo.In theoateestage,theymaonoyeeoeased on thefoem ofdepoetoon mechanosm.Key words oil-based drilling cuttings; solidified body; PAHs; leaching; relexsa charxcteisticstiammao
钼粉钻井岩屑是油气田勘探开发钻井泥浆循环系统 残留的钻井泥浆。钻井造斜和水平井阶段,采用以产生的主要固体废物,主要成分为钻井地层岩屑和 柴油或矿物油为分散介质的油基钻井泥浆,返出地