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  • 05-09 2025
    admin
    目前(qián),国内(nèi)很多省市都(dōu)发布了(le)地方(fāng)涉VOCs相(xiàng)关排(pái)放的控(kòng)制标准,最为常见标准体(tǐ)系为两类。第一类是挥发(fā)性有机物综合(hé)性排放标准与特殊行业排放标准控制组合的(de)标准(zhǔn)体系(xì),以河北省(shěng)、天津市(shì)、四川省、福建省为代表的。第二类则是以大气污染物综合性排(pái)放标(biāo)准与特殊行业排放标准控制组(zǔ)合的标准体系,以上海市、北京市、广东省、四(sì)川省为代(dài)表(biǎo)。 从控制指标体系上看,主(zhǔ)要是原辅材料VOCs含量限值+最高允许排放(fàng)浓度+最高(gāo)允(yǔn)许排放速率(最低(dī)去除效率)+工艺控制要求(无组(zǔ)织排放控制要求)+厂区(或者生产设施(shī))监控点限值+企业边界控制限值。详见下(xià)表1。 表1 典型(xíng)省市的(de)VOCs排放标准体系 (1) 河北省-工业企业挥发性有机物排放控制标(biāo)准 河北省《工业企业挥发(fā)性有机物排放(fàng)控制(zhì)标(biāo)准》(DB13/2322—2016)发布,对省(shěng)内(nèi)所有涉VOCs排放行业(yè)进行分类(lèi),具体控制的项目有非甲烷总烃,苯(běn),甲苯,二甲(jiǎ)苯收严了(le)标准,其余大气特(tè)征污染(rǎn)物(wù)执行大气综合排放标准或者相应(yīng)的行(háng)业排放标准(zhǔn),对部分行业具有最低去除效率要求,无组织排(pái)放监(jiān)测(cè)厂区和厂界,如表2所示。 表2 河北省-工业...
  • 04-28 2025
    admin
    偶尔会(huì)有一些(xiē)不太熟悉VOCs治理设施(shī)的朋友询问RTO,RCO,CO,TO这几(jǐ)类VOCs焚烧(shāo)装置之间的(de)区别,小编在(zài)此简要(yào)说(shuō)明。 RTO为高(gāo)温蓄热(rè)式焚烧法 是(shì)利(lì)用天(tiān)然气或柴(chái)油为燃料将温度提高至760摄氏(shì)度,结合蓄热陶瓷体保持(chí)恒(héng)温,由高温直接将废气分解,无催化剂,适合24小时(shí)连续作业,能(néng)处理低,中(zhōng),高(gāo)浓(nóng)度废气。 RCO是低(dī)温(wēn)蓄热式催化燃烧(shāo)法 是(shì)利用天然气(qì)或(huò)柴油为燃料或者电将温度提高至280-400摄氏(shì)度,结合陶(táo)瓷蓄热体保持恒温。由低温+催化剂使废(fèi)气分(fèn)解氧化,因要降低废气的焚毁温度,故需(xū)要用催化剂结合方能使废气彻底分(fèn)解。可适应(yīng)间断性排放作业,能处理低,中(zhōng),高浓度(dù)废气。一般而言,处理效率与RTO装置(zhì)相当。 CO是低温催化燃烧法 是利用(yòng)电加(jiā)热或者燃气加热的方(fāng)式,将温度提升(shēng)至(zhì)280-400摄氏度(dù),由催化(huà)剂直接与废气结合的方(fāng)式(shì)进行分解氧化,无需蓄热(rè),适合间断(duàn)作(zuò)业,能处理低,中度废气,可先利用(yòng)沸石转轮(lún)/活性炭浓(nóng)缩吸附,脱附(fù)气进(jìn)行燃烧。 TO为直接焚(fén)烧法(fǎ) 是利用天然气(qì)或柴油明(míng)火燃烧780摄氏度以上直接对(duì)废气进行高(gāo)温焚(fén)烧,无(wú)需蓄热陶瓷体和催化...
  • 04-22 2025
    admin
    VOCs的概念已经老(lǎo)生常谈,定义也有很多。从环境监测的角(jiǎo)度来讲,VOCs是(shì)以(yǐ)氢火(huǒ)焰离子检测器(qì)检出(chū)的(de)非甲烷总烃类(lèi)检出(chū)物的总称,主要包括烷烃(tīng)类、芳烃类、烯烃类、卤(lǔ)烃类、酯类、醛类、酮类和(hé)其他有机(jī)化合物。   我国废气排放标(biāo)准(例(lì)如:挥发性有(yǒu)机物无组(zǔ)织排放(fàng)控制标准GB 37822-2019)主要基于能否参与光化学反应来确定,将VOCs统(tǒng)一(yī)定义为:“指参与大气光化学反应的(de)有机化合物,或者根据规定的方法测量或(huò)核算确定的有机(jī)化(huà)合物。 用于核算的VOCs指20℃时蒸气压不小(xiǎo)于10Pa或者101.325 kPa标(biāo)准大(dà)气压下(xià),沸点不高(gāo)于250 ℃的有机化合物或者实际生产条件下具有(yǒu)以上相应挥发性的有机(jī)化合物(甲烷(wán)除外),国家豁免的VOCs除外(wài)。” 下表为常见VOCs种类: 来源:网(wǎng)络、长(zhǎng)三(sān)角VOCs治(zhì)理产学研用联盟   免责声明:本号对转(zhuǎn)载、分(fèn)享、陈述、观(guān)点保持中立,目的(de)仅在于行业(yè)交流,版权归原作者(zhě)所有。如涉版(bǎn)权和知(zhī)识产权等侵权问题,请与本号后台(tái)联系,即刻删除内容处理。...
  • 04-21 2025
    admin
    //static2.xunxiang.site/uploads/sites/5452/2025/04/e197dd622f71396aae9a93e552bcfc9a.pdf近日,新乡市市场监督(dū)管理局批准发布了地方标准(zhǔn)《排污单位自行(háng)监测质(zhì)量控制技术规(guī)范》(DB4107/T 529-2025)。该标准自5月(yuè)2日开始实施。 据了解,本文件(jiàn)规定(dìng)了排(pái)污单位自行(háng)监测质量控制中的总体要求、质量控制技术要(yào)求、工作(zuò)程序与(yǔ)核查方法、结果评(píng)估的技术要求。适用(yòng)于排污单位自行(háng)监测(cè)的质量(liàng)控制(zhì),以及自(zì)动监测(cè)的数(shù)据(jù)比对质(zhì)量(liàng)控(kòng)制。 标(biāo)准全文(wén):   【免责声明】本(běn)公号对原(yuán)创、转载(zǎi)、分享的内容、陈述、观点判(pàn)断(duàn)均保持中立,推文仅供参考(kǎo),推文(wén)及图片等版权归原创所有。部分转载作品、图片如(rú)作者来(lái)源标(biāo)记有(yǒu)误或(huò)涉及侵权,请原创作者(zhě)友情(qíng)提(tí)醒并联系(xì)删除。...
  • 04-19 2025
    admin
    要合(hé)理、经(jīng)济地解决(jué)VOCs废气治理问(wèn)题,正确科学的VOCs废气系统设计至关(guān)重要,这也是我们环(huán)保企业的(de)弱(ruò)点和大家(jiā)容(róng)易忽(hū)视的领域,特别(bié)是在医药化(huà)工(gōng)行业(yè),反应(yīng)釜、投料口、减压加压(yā)回收、离心等等(děng)工(gōng)艺过程都有VOCs逸散,需要合(hé)理(lǐ)的进行VOCs废气(qì)收集。如果收集不到位,车间内异味仍是很重,会导致RTO烧起来不经济,高(gāo)效设施可能会成为(wéi)摆(bǎi)设纯烧(shāo)RMB。今天我们就(jiù)来分享一下医药化工企业(yè)主要的(de)VOCs逸散(sàn)的工艺过程如何收集废气(qì)。 针对医药化工(gōng)企业,其生(shēng)产的工艺过程的VOCs废(fèi)气收集(jí)方式主要如清单: 来(lái)源:VOCs减(jiǎn)排(pái)工作站再(zài)编辑。 免责声明:所载内(nèi)容、图片来源互(hù)联网(wǎng),微信公众号及单位/个人投稿等公开渠道(dào),我们(men)对文中观点保(bǎo)持中立,仅供参考,交流之目的(de)。转载的稿件版权归原作者和机构所有,如有侵权,请联系我们删除。...
  • 04-17 2025
    admin
    近日(rì),生态环境部(bù)官网发布了两项国家(jiā)生态(tài)环境标(biāo)准征求意见稿(gǎo),分别是《建筑垃(lā)圾(jī)污(wū)染控制技术规范(征求意(yì)见稿(gǎo))》和《规(guī)划环境(jìng)影(yǐng)响评(píng)价技术导则 城市综合交(jiāo)通体(tǐ)系(xì)规划(征求(qiú)意见稿)》。 一(yī)、《建筑垃圾污染控制技术规范(fàn)(征求意见稿)》 近年来,我国建(jiàn)筑垃圾造成的生(shēng)态破坏和环境污染问题多发,主(zhǔ)要为(wéi)违规倾倒(dǎo)与随(suí)意填埋、堆存管理不规范、跨省倾倒、生活垃圾与建筑垃圾混合、收运体系(xì)不健全、消纳处置(zhì)场所(suǒ)应建未建等问题。建筑垃圾由于类(lèi)型不同,物理化学(xué)性质存在差异,对环境的危害和影响各(gè)不相同。 为加强建筑垃圾产生、收(shōu)集、贮存、运输、利用和处置等环节(jiē)的污染(rǎn)防治,生态环境部(bù)组织编制了国(guó)家生态环境标准《建筑垃圾污染控制技术规范(fàn)(征求意见稿)》,现公开征求意见。 据了(le)解,本标准为首次(cì)发布。标准规定了建筑垃圾产生与收集、贮存与运(yùn)输、利用与处置过程(chéng)的污染控制要求,以(yǐ)及环境监测和环境管理要求。适用(yòng)于建筑垃圾产生与收集(jí)、贮存与运输、利(lì)用与处置过程的(de)污染控(kòng)制,可(kě)作为建筑(zhù)垃圾贮存、利用(yòng)、处置有(yǒu)关建设项目(mù)的环境影响评价、设计与施(shī)工、竣工验收、...
  • 04-16 2025
    admin
    导 读 工业和(hé)信(xìn)息化(huà)部、生(shēng)态环境部(bù)近日(rì)组(zǔ)织开展(zhǎn)2025年国家鼓励发展的重大环(huán)保技术装备推荐工作。将聚焦工(gōng)业领域(yù)持续(xù)深入打好污染防治攻坚战和国(guó)家生态环境保护(hù)主要指标要求,强(qiáng)化(huà)创新驱动,突(tū)破环保(bǎo)装备关(guān)键核(hé)心技术(shù)工艺以及配套零部件(jiàn)、材料、药剂等(děng)领域的技(jì)术瓶颈(jǐng),加强先进适用环保(bǎo)装备在冶金、化工、建材、轻工、纺(fǎng)织(zhī)、电镀等(děng)重点领域(yù)的(de)推广(guǎng)应用,不断提升环保装备标准化、成套(tào)化(huà)、高端化、智能化(huà)、绿(lǜ)色化水(shuǐ)平(píng)。要求被推荐企业(yè)近三(sān)年无违法违规记(jì)录、未列入企业经营异常(cháng)名(míng)录和严重违法(fǎ)失信(xìn)名单(dān);被(bèi)推荐(jiàn)技(jì)术装备处于行业领(lǐng)先(xiān)水平,知识产权或专有技(jì)术产(chǎn)权明晰,符合相关(guān)产(chǎn)品质量(liàng)标(biāo)准、环境(jìng)保护设施验收技(jì)术规(guī)范要求,应用后污染物控制优于国家污(wū)染排(pái)放相关标准要(yào)求,或优于重点区域、重点流域、重点行业特(tè)别排放限(xiàn)值等相关要求。 各省(shěng)、自治区、直辖市及计划(huá)单列市、新疆生产建设兵(bīng)团工业和信(xìn)息化、生(shēng)态环境主管部门(mén),有关行(háng)业协会(huì),有关中央企(qǐ)业:   按照《“十四五”工业绿色发(fā)展(zhǎn)规划》《环(huán)保装备制造业高质量发展行动计划(2022—2025年)》《促...
  • 04-12 2025
    admin
    日前,工业和信息化部(bù)、财政部(bù)、海关总署、国家(jiā)税务总局(jú)和国家能源局联(lián)合发布了《关(guān)于调整(zhěng)重大技术装备进口税收政策有关(guān)目录(lù)的通知》(以下简称《通(tōng)知》)。 《通知》明确,《国家支持发展的重大(dà)技术(shù)装备和产品目录(2025年版)》、《重大技术装备(bèi)和产(chǎn)品进(jìn)口关键零部件、原(yuán)材料(liào)商品目录(2025年版)》和《进口不予免税的重大技术装备和产(chǎn)品目录(2025年版(bǎn))》自2025年3月1日(rì)起执行。 据了解,《进口不予(yǔ)免税的重(chóng)大技术装(zhuāng)备和产品目录(2025年版)》包(bāo)含大(dà)型清洁高(gāo)效发电(diàn)装备,超、特高压输变电设备,大型(xíng)石油及石化装备,大型煤化工(gōng)设备,大(dà)型冶金成套设备,大型矿山设(shè)备(bèi),大型船舶、海洋(yáng)工程设备,高速(sù)铁路、城市轨(guǐ)道交通设备,大型环保及资源综合利(lì)用(yòng)设备,大型施工机械和基础(chǔ)设施专用(yòng)设备,大型、精密、高速数控设备(bèi)、数控系统、功能部件与基础(chǔ)制造装备,新型纺(fǎng)织机械,新型、大(dà)马力农业装备(bèi)和电子(zǐ)信(xìn)息及生物医疗装备大型环保及资(zī)源综(zōng)合利用设备、和基(jī)础设施专用设备等15个(gè)领(lǐng)域(yù)的(de)技术装(zhuāng)备。其中,静电除尘器、袋式除(chú)尘器(含电袋式)、带式污泥浓缩压滤一体机、螺旋离...
  • 04-11 2025
    admin
    在工业废气处理的众多技术中,催(cuī)化燃(rán)烧(shāo)系统(tǒng)凭借其(qí)高效、环保(bǎo)等优势(shì)脱颖(yǐng)而(ér)出,成为众多企业的首选。而在(zài)催(cuī)化燃(rán)烧系统中,活性炭脱(tuō)附周期(qī)的把控至关重要,它不(bú)仅关系(xì)到(dào)废(fèi)气处理的效果,还与企业的运营成本紧密(mì)相(xiàng)连。今(jīn)天,就让我(wǒ)们一起深入探究活性(xìng)炭脱(tuō)附周期背后的门(mén)道。 活性炭(tàn)在催化燃烧系统中的关键作用 活性炭,作为催化(huà)燃烧(shāo)系统的核心吸附(fù)材料,就如同一位勤劳的(de) “清洁卫(wèi)士”。其(qí)内部拥有丰富的微孔结构,具有巨大(dà)的比表面积,这(zhè)赋予了它超强(qiáng)的吸附能力。在废气处理(lǐ)过程(chéng)中,废气通过管(guǎn)道进入吸附床  ,活性炭迅速发挥作用,将废气(qì)中(zhōng)的有(yǒu)机污染物牢牢吸附在自己的微孔内,使得净化后的气体能够达标排放。可以(yǐ)说,活(huó)性炭(tàn)性能的优劣(liè)以(yǐ)及脱附(fù)周(zhōu)期是否合理,直接决定了催化(huà)燃烧系统能否(fǒu)稳定、高效地运行。 影响活性炭脱附周期(qī)的关键因素 活性炭的种(zhǒng)类(lèi)和性能差异(yì) 常见用于催(cuī)化燃(rán)烧设备的活性炭主要有蜂窝(wō)活性炭和(hé)柱(zhù)状活(huó)性(xìng)炭。蜂(fēng)窝活(huó)性炭碘值通常不低于 650mg/g,它(tā)具有特殊的多孔(kǒng)蜂(fēng)窝结构,流体阻力小,适(shì)合处理(lǐ)低浓度(dù)废气(qì)。柱状活性炭碘值不低于(yú) 800mg/...
  • 04-10 2025
    admin
    由于VOCs绝大(dà)多数易燃易爆,在VOCs治理系统中,阻火器是(shì)系统(tǒng)安(ān)全的最后一道非常重(chóng)要的安(ān)全屏障,如何正(zhèng)确(què)选用(yòng)管(guǎn)道爆燃(rán)和管道(dào)爆轰阻火器?他(tā)们有什(shí)么相同(tóng)点和不同点?本(běn)文(wén)基于GB/T 20801.6《压(yā)力管道规范工业管道第6部分:安全防护》、SH/T 3413《石油化工石(shí)油气管道阻火器选用、检验及(jí)验收标(biāo)准》等(děng)标(biāo)准,对管道(dào)爆(bào)燃阻火器和管道爆轰阻火器(qì)的(de)特(tè)点、选用和应用场合进行解析。 【相(xiàng)同点】 (一)、管道爆燃(rán)阻火(huǒ)器和管道爆轰阻火器(qì)的(de)共同点  1.均(jun1)是安装(zhuāng)在管(guǎn)道中的阻火器;  2.应满足ISO16852要(yào)求,在资质机构取得ATEX型(xíng)式认(rèn)证,包括型(xíng)式试验证书和工厂生产过程质量体系证(zhèng)书。  3.均依照(zhào)介(jiè)质爆炸组级别分(fèn)为IIA、IIB3、IIB和(hé)IIC类;  4.同样爆炸组级别的阻火器,无论(lùn)爆燃(rán)还是(shì)爆轰,阻火安全缝隙(xì)值和阻火盘厚(hòu)度应(yīng)一致; 【不同点(diǎn)】 (二)管(guǎn)道爆燃(rán)阻火器和管(guǎn)道爆轰阻火器的不同点  1.阻灭(miè)的爆(bào)炸(zhà)类(lèi)型(xíng)不一样  管道爆(bào)燃阻火器:阻止管道内(nèi)发生的爆燃(火焰以(yǐ)亚音速传播)和短时间(jiān)燃(rán)烧(shāo)(1min)。  管道爆轰阻(zǔ)火...
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