简体中文 | ENGLISH  
首 页
|
关于我们
|
业务范围
|
技术创新
|
典型案例
|
新闻中心
|
联系我们
|
新闻中心
公司新闻
行业动态
 
本类排行
  • 昆明市第十三污水处理建设项目安全
  • 昆明市委书记程连元、副市长吴涛一
  • 昆明主城污泥处理搬迁项目消化、脱
  • 程连元:全力推进污泥处置减量化无
  • 王凯军:污泥干化-焚烧技术已成为
  • 污水丨一口气看完活性污泥法,最全
  • 总结 | 关于活性污泥的那些事
  • 英国污泥处理处置方式对我国的启示
  • 当前位置:首页  >>    新闻中心  >>    行业动态    
                                我国工业废水处理九大技术分析

    随着国家对环保的重视,以及工业水处理的技术发展,以下简述现如今的工业废水处理的新技术。

    膜技术

    膜分离法常用的有微滤、纳滤、超滤和反渗透等技术。由于膜技术在处理过程中不引入其他杂质,可以实现大分子和小分子物质的分离,因此常用于各种大分子原料的回收,如利用超滤技术回收印染废水的聚乙烯醇浆料等。目前限制膜技术工程应用推广的主要难点是膜的造价高、寿命短、易受污染和结垢堵塞等。伴随着膜生产技术的发展,膜技术将在废水处理领域得到越来越多的应用。

    磁分离技术

    磁分离技术是近年来发展的一种新型的利用废水中杂质颗粒的磁性进行分离的水处理技术。对于水中非磁性或弱磁性的颗粒,利用磁性接种技术可使它们具有磁性。磁分离技术应用于废水处理有三种方法:直接磁分离法、间接磁分离法和微生物—磁分离法。目前研究的磁性化技术主要包括磁性团聚技术、铁盐共沉技术、铁粉法、铁氧体法等,具有代表性的磁分离设备是圆盘磁分离器和高梯度磁过滤器。目前磁分离技术还处于实验室研究阶段,还不能应用于实际工程实践。

    Fenton及类Fenton氧化法

    典型的Fenton试剂是由Fe2催化H2O2分解产生?OH,从而引发有机物的氧化降解反应。由于Fenton法处理废水所需时间长,使用的试剂量多,而且过量的Fe2将增大处理后废水中的COD并产生二次污染。近年来,人们将紫外光、可见光等引入Fenton体系,并研究采用其他过渡金属替代Fe2,这些方法可显著增强Fenton试剂对有机物的氧化降解能力,减少Fenton试剂的用量,降低处理成本,统称为类Fenton反应。Fenton法反应条件温和,设备较为简单,适用范围广;既可作为单独处理技术应用,也可与其他方法联用,如与混凝沉淀法、活性碳法、生物处理法等联用,作为难降解有机废水的预处理或深度处理方法。

    电化学(催化)氧化

    电化学(催化)氧化技术通过阳极反应直接降解有机物,或通过阳极反应产生羟基自由基(?OH)、臭氧等氧化剂降解有机物。电化学(催化)氧化包括一维、二维和三维电极体系。由于三维电极体系的微电场电解作用,目前备受推崇。三维电极是在传统的二维电解槽的电极间装填粒状或其他碎屑状工作电极材料,并使装填的材料表面带电,成为第三极,且在工作电极材料表面能发生电化学反应。与二维平板电极相比,三维电极具有很大的比表面,能够增加电解槽的面体比,能以较低电流密度提供较大的电流强度,粒子间距小而物质传质速度高,时空转换效率高,因此电流效率高、处理效果好。三维电极可用于处理生活污水,农药、染料、制药、含酚废水等难降解有机废水,金属离子,垃圾渗滤液等。

    铁碳微电解处理技术

    铁碳微电解法是利用Fe/C原电池反应原理对废水进行处理的良好工艺,又称内电解法、铁屑过滤法等。铁炭微电解法是电化学的氧化还原、电化学电对对絮体的电富集作用、以及电化学反应产物的凝聚、新生絮体的吸附和床层过滤等作用的综合效应,其中主要是氧化还原和电附集及凝聚作用。铁屑浸没在含大量电解质的废水中时,形成无数个微小的原电池,在铁屑中加入焦炭后,铁屑与焦炭粒接触进一步形成大原电池,使铁屑在受到微原电池腐蚀的基础上,又受到大原电池的腐蚀,从而加快了电化学反应的进行。此法具有适用范围广、处理效果好、使用寿命长、成本低廉及操作维护方便等诸多优点,并使用废铁屑为原料,也不需消耗电力资源,具有“以废治废”的意义。目前铁碳微电解填料己经广泛应用于印染、农药/制药、重金属、石油化工及油分等废水以及垃圾渗滤液处理,取得了良好的效果。关于本公司研发生产的TPFC铁碳填料处理各类废水的效果可以查看TPFC铁碳微电解填料处理各种废水的处理效果。

    臭氧氧化

    臭氧是一种强氧化剂,与还原态污染物反应时速度快,使用方便,不产生二次污染,可用于污水的消毒、除色、除臭、去除有机物和降低COD等。单独使用臭氧氧化法造价高、处理成本昂贵,且其氧化反应具有选择性,对某些卤代烃及农药等氧化效果比较差。为此,近年来发展了旨在提高臭氧氧化效率的相关组合技术,其中UV/O3、H2O2/O3、UV/H2O2/O3等组合方式不仅可提高氧化速率和效率,而且能够氧化臭氧单独作用时难以氧化降解的有机物。由于臭氧在水中的溶解度较低,且臭氧产生效率低、耗能大,因此增大臭氧在水中的溶解度、提高臭氧的利用率、研制高效低能耗的臭氧发生装置成为研究的主要方向。

    湿式(催化)氧化

    湿式(催化)氧化法是在高温(150~350℃)、高压(0.5~20MPa)、催化剂作用下,利用O2或空气作为氧化剂(添加催化剂),(催化)氧化水中呈溶解态或悬浮态的有机物或还原态的无机物,达到去除污染物的目的。湿式空气(催化)氧化法可应用于城市污泥和丙烯腈、焦化、印染等工业废水及含酚、氯烃、有机磷、有机硫化合物的农药废水的处理。

    等离子体水处理技术

    低温等离子体水处理技术,包括高压脉冲放电等离子体水处理技术和辉光放电等离子体水处理技术,是利用放电直接在水溶液中产生等离子体,或者将气体放电等离子体中的活性粒子引入水中,可使水中的污染物彻底氧化、分解。水溶液中的直接脉冲放电可以在常温常压下操作,整个放电过程中无需加入催化剂就可以在水溶液中产生原位的化学氧化性物种氧化降解有机物,该项技术对低浓度有机物的处理经济且有效。此外,应用脉冲放电等离子体水处理技术的反应器形式可以灵活调整,操作过程简单,相应的维护费用也较低。受放电设备的限制,该工艺降解有机物的能量利用率较低,等离子体技术在水处理中的应用还处在研发阶段。

    超声波氧化

    频率在15~1000kHz的超声波辐照水体中的有机污染物是由空化效应引起的物理化学过程。超声波不仅可以改善反应条件,加快反应速度和提高反应产率,还能使一些难以进行的化学反应得以实现。它集高级氧化、焚烧、超临界氧化等多种水处理技术的特点于一身,加之操作简单,对设备的要求较低,在污水处理,特别是在降解废水中毒性高、难降解的有机污染物,加快有机污染物的降解速度,实现工业废水污染物的无害化,避免二次污染的影响上具有重要意义。近年来利用超声波直接处理或强化处理有机废水的研究日益增多,内容涉及降解机理、动力学、中间产物、影响因素、系统优化等方面。

    辐射技术

    20世纪70年代起,随着大型钴源和电子加速器技术的发展,辐射技术应用中的辐射源问题逐步得到改善。利用辐射技术处理废水中污染物的研究引起了各国的关注和重视。与传统的化学氧化相比,利用辐射技术处理污染物,不需加入或只需少量加入化学试剂,不会产生二次污染,具有降解效率高、反应速度快、污染物降解彻底等优点。而且,当电离辐射与氧气、臭氧等催化氧化手段联合使用时,会产生“协同效应”。因此,辐射技术处理污染物是一种清洁的、可持续利用的技术,被国际原子能机构列为21世纪和平利用原子能的主要研究方向。

    来源:水博网

     

    友情链接:  墨铸传媒    中国水网    污水处理工程网    中和荣华环保科技(北京)有限公司   
    版权所有:中和利华投资管理(北京)有限公司
    备案号: 京ICP备 12045876号

    地址:北京市海淀区上地九街9号9号2层214号
    电话:010-82890619                     传 真:010-82899868

    The charm hybrid blooming of Jordan six rings Michael Jordan,the basketball hero myth is the title of the famous wholesale sneakers NBA star,that has the honor of 6 NBA championship rings,twice three consecutive.cheap jordans Following retiring,he chose to stand within the basketball court,bing the Jordan brand sneaker in to shine.Retro every 12 months and different sytle on the dazzing jordans sneaker form,generating Jordan brand sneak to be one of several favortie sporting on the basketball heroes.The turn out of the Jordan 6 rings grow to be an different to court while sneakers for cheap in the landscape,a assortment of some essence of ancient AJ shoes.From high-end carbon fiber and nylon composition sneakers body,expressing the dominering fashion.The jumpman emblem within the outside from the hell cheap jordans sneakers and 96,97,98 fatures while in the tongue diplay the micacles of Jordan.The ingenious design of this pair of charm hybrid blooming shos silhouetted Jordans obsession jordan shoes for sale of basketball.We will in no way overlook what the tremendous shock bring to us.
    The new Guys in Dallars Staff of Inexpensive Jordans So it has been a while I realize. Nothing truly cheap jordan huge occurring in my life you recognize that, went for the super industry to order Inexpensive Jordans , acquired a hair reduce and oh yeah..... I am A DALLAS MAVERICK! What up D-town! I am ecstatic to get within your town and on this team.My move to Dallas is actually a excellent scenario and I am happy with the move however we weren't capable to finish what we started in Washington. But I'm content to be right here in Dallas competing for any Low cost Jordans title.Obviously playing by using a man like Jason Kidd, you do not need to function so hard and Dirk draws a lot focus and also you acquired guys that just truly need to win and that's the only aim. I am just enjoying myself as Inexpensive Jordans and I am pleased and I believe that just lifts a lot of weight off my shoulders. It is considerably less complicated with these guys since they tend to cheap jordans free shipping discover you proper in rhythm and they are excellent staff players given that they've got been around the league to get a very long time. They michael jordan shoes comprehend the game.Dirk can be a humorous man. Playing towards him you'll not consider he has a lot persona along air jordans with a sense of humor, but you see him behind the scenes and jordans free shipping he is unbelievable. He created this complete transition very easy for me. Like we went to the Jay Z concert the other evening. We just enjoy each other and he is constantly checking on me producing confident I tend not to need to have anything and helping me locate a Cheap Jordans retailer. He's just an all-around excellent guy. That just displays me that he genuinely desires me here.My first game in Dallas, I acquired an insane applause and 80 percent on the arena had straws within their mouth. It had been unbelievable. And obviously that straw issue received cut off fast. It is what it really is however. I respect the leagues determination, although it's something I been performing for eight years. It truly is all excellent, I jordan shoes for sale can find one thing else to chew on.
    Traditional Low-cost jordans free shipping Air Jordans Ranked Top In Playboy Cheap Jordans Free of charge Shipping on the web shop are offering Low cost Jordans expecially Cheap Air Jordans for the Jordans Sneaker supporters! There's a excellent jordans for cheap information about jordan sneakers Jordan Brand, also very good towards the individuals who favor Jordans Low cost! It was explained that, on Might 31, 23 Air Jordans Inexpensive will be ranked best michael jordan shoes through the Playboy Magazine for its wonderful influences in a number of generation. Our www.jordanstrading.com is a terrace which 1000's of Inexpensive Jordans are internet hosting in. jordan shoes for sale Here, we are able to offer you greatest Inexpensive Jordan Sneakers jordan shoes online like Air Jordans Cheap Series along with other Low cost Jordans. Select our www.becheapjordans.com and www.jordanstrading.com to obtain great Jordans Low-cost!
    Shell out Consideration To New cheap sneakers Senior Designer of Inexpensive Jordans In August?¨o?2010?¨o?the Jordans Sneaker Brand picked and promoted the Luedecke as new senior designer of Inexpensive Jordan Sneakers. Luedecke attended in Jordan Brand in 2003 as being a innovational designer of Inventive Kitchen authentic jordans Division. Considering that 2010, he is now a jordans free shipping great designer director of excellent Low cost Jordans, for example Nike Zoom Trainer 1, Nike Hyperdunk and Nike Free, far more essential is, he produced the Laser Incision Tech.sneakers for cheap Welcome to pay out a go to to our Low-cost Jordans Free of charge Shipping on-line retailer to get superb Low-cost Air Jordans as well cheap jordan as other Jordans Low cost, Inexpensive jordans sneakers Jordans in www.jordanstrading.com and www.cheapjordansfor.com will match for all of your exquisite styles or tips!
    Air Jordans twelve Joe Johnson PEAs a single spokesman of Jordan Brand,Joe Johnson often so chic on the pitch.Anticipate sneakers for cheap for MJ,Finley and Ray,Joe is probably the gamers who you jordans for cheap are prepared to pay out funds to determine him perform.This pair of Cheap Jordans black and red Air Jordan twelve custom-made versioned from jordan retro 11 the boots for him within the earlier this year.The based mostly materials of this part is a black matte and black snake skin pattern uppers.Coupled having a striking red lining,JUMPMAN logo and embroidered labels figure 22 in the heel,right away highlighting the shining light.You'll find several Cheap Jordans on our site,every one of the things on www.ischeapjordans.com is in good top quality,competitive cost jordan retro 5 and trendy style.To certain the exceptional top quality,every make hyperlink is extremely strickly supervised.Here jordan sneakers would be the pradise from the Low-cost Jordans,cheap sneakers welcome to our internet site to purchase your favorite.
    NikeiD Air Max 90 SampleA couple of weeks ago,cheap jordans for sale we already know the Nike Air Max 90 Hyperfuse joined the Nike iD ranks,which also marks the customized Nike iD includes a new material.These days,the samples NIKE iD Air Max 90 looks to bring our thoughts back.The ripstop nylon upper materials jordan retro 13 a unique texture and intriguing splash fenders,remind us the upper pattern of the Air Tech Challenge II.The letter "CUSTOM"in the heel of present the custom make.sneakers for cheap Given that Nike 2010 launched Hyperfuse technolgoy and application it for the style of basketball.The exceptional ventilation,wear-resistant,lightweight,bundle efficiency,stay fresh in our memory.It is eye-attracting for jordans for cheap the followers who pursuit to the relaxed.jordan retro 3 This bold ideal will certainly be more of NikeiD,maybe you happen to be the subsequent very own of NikeiD.cheap sneakers Do you like this custom edition?
    Air Jordan 9 Bin 23Very good news for you all,as an internet seller will get more new versions of Inexpensive jordan shoes online Shoes in June, including the brand new releasing of Jordan Sneakers,The Air Jordan 6 Pack and Air Jordan 9 Bin 23 ,these Low-cost Jordans are coming June five at a reduced value on our web site.This Air Jordan 9 Bin 23 serves for being the cheap jordan second providing from the Air Jordan Bin 23 Assortment. We're certain the brand new inexpensive jordans might be a lot more coveted compared to the cheap sneakers 1st described Air Jordan two. Firstly ,we would want to describe them merely.Its base is made up jordan shoes of white leather and a few gold nubuck with the latter a part of the texture in glossy finish.In addition, it's midsoles, laceholders and also the logo in the Jumpman within the white sole colored in gold as well. To provide a total complement towards the sneakers, and the stamp of the Bin 23 might be witnessed about jordan shoes for sale the lateral side in the sneakers. So if given the best possibility and option, would you make this yours with us? jordan sneakers Would you be willing to purchase this pair when they can be found right here? We are going to maintain you posted,Otherwise you can pre buy this Low-cost Air Jordan 9 Bin 23 at our site.
    Cheap Jordans 11 IE Low jordan sneakers Welcome to spend consideration to our Low cost Jordans centre www.jordanstrading.com, yes, we carry you the new Jordans and cheap jordan fashionable Jordans Low cost, the classic Cheap Jordans 11 IE Lower is released not too long ago! This retro coming Low-cost cheap sneakers Jordan Footwear applies the low-cut and hollow out mesh design and style, can make cheap jordans sneakers your feet appreciate amazing feelings in scorching summer jordan retro 11 season. Have a look at its translucent baby blue outsole, so grace, will certain make you a lot more stylish!Now, hurry to browse our Cheap wholesale sneakers Jordans catalog, whenever you browse our Inexpensive Jordans On Sale in www.becheapjordans.com, you may take pleasure in the normal Low-cost Jordans Totally free Shipping, hurry to obtain some great Inexpensive Air Jordans, super Jordans Low-cost right here, you won't miss what you adore!
    Air Jordan Hybrid new sample The fit sneakers Jordan Brand will releae in 2012 is exposed,which fit toe and heel air jordans draw the crack explosion from classic Air Jordan 3 style.the outsole and lace portion is the eviden cheap jordan from Air Jordan 5.The upper is just like Air Jordan 6,the laser magic is derived from your Air Jordan 20. The title on the jordan sneakers fashion now just isn't clear but,jordan shoes the reported of network will probably be Jordan Spiz'ike II.sneakers for cheap This match sneakers design will probably jordans free shipping be sale in Summer time subsequent 12 months.