{"id":3385,"date":"2024-05-14T09:47:52","date_gmt":"2024-05-14T07:47:52","guid":{"rendered":"https:\/\/active-oxygens-sustainability.evonik.com\/?post_type=article&p=3385"},"modified":"2024-05-22T17:51:58","modified_gmt":"2024-05-22T15:51:58","slug":"groundwater-remediation-the-gentle-way","status":"publish","type":"article","link":"https:\/\/active-oxygens-sustainability.evonik.com\/en\/articles\/groundwater-remediation-the-gentle-way\/","title":{"rendered":"Ground\u00adwa\u00adter reme\u00addi\u00ada\u00adtion the gentle way"},"content":{"rendered":"\n
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Ground\u00adwa\u00adter reme\u00addi\u00ada\u00adtion the gentle way<\/h1>\n

Once the site of a mili\u00adtary instal\u00adla\u00adtion, the \u201cPioneer Park\u201d quar\u00adter of Hanau, Germany, is now being trans\u00adformed into a hous\u00ading area for 5,000 resi\u00addents. Yet before the modern living space can fully come to life, reme\u00addi\u00ada\u00adtion is needed for cont\u00ada\u00adm\u00adi\u00adnated ground\u00adwa\u00adter in two sections of the soon-to-be neighborhood.<\/h4>\n<\/div>\n\n\n\n
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H<\/span>anau is one of Germany\u2019s up-and-coming towns. Located east of Frank\u00adfurt, Hanau is home to numer\u00adous large compa\u00adnies and is on the way towards devel\u00adop\u00ading into a major city. This also trans\u00adlates into high demand for new and afford\u00adable hous\u00ading. So when the roughly 50-hectare site of a former mili\u00adtary barracks<\/span><\/span> became vacant in 2008, it made sense for the city to turn this into useful real estate.<\/p>\n<\/div>\n\n\n\n

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An attrac\u00adtive resi\u00adden\u00adtial quarter<\/h5>\n

Since 2018, the site has under\u00adgone trans\u00adfor\u00adma\u00adtion into a modern resi\u00adden\u00adtial quar\u00adter. The largest resi\u00adden\u00adtial construc\u00adtion project in the Rhine-Main area, Pioneer Park<\/a> is conve\u00adniently located, border\u00ading directly on the Bulau Forest and Nature Reserve. Inside the site itself, numer\u00adous green spaces are being created, while the streets are based on the fan shape already laid down by the former barracks. Most of the devel\u00adop\u00adment is being built from scratch. Ulti\u00admately, 5,000 people will find a comfort\u00adable home within Pioneer Park.<\/p>\n

Resi\u00addents already began moving into the first apart\u00adments and houses as early as 2020. But before the entire area can be converted, the condi\u00adtion of the soil and ground\u00adwa\u00adter needed care\u00adful scrutiny. After all, sites previ\u00adously used for mili\u00adtary purposes often reveal some form of cont\u00ada\u00adm\u00adi\u00adna\u00adtion. And indeed, two areas cover\u00ading a total of 11,000 square meters (1.1 hectares) showed the pres\u00adence of chlo\u00adri\u00adnated volatile organic compounds (VOCs). \u201cThe source of the cont\u00ada\u00adm\u00adi\u00adna\u00adtion was chem\u00adi\u00adcal clean\u00ading agents, includ\u00ading those from the barracks\u2019 former dry clean\u00ading facil\u00adity,\u201d explains Mike Mueller, EMEA Busi\u00adness Manager for Soil & Ground\u00adwa\u00adter Reme\u00addi\u00ada\u00adtion at Evonik Active Oxygens. \u201cSome of these solvents seeped under\u00adground, and from there, VOCs entered the ground\u00adwa\u00adter.\u201d This was a prob\u00adlem, as VOCs are harm\u00adful to health. And because the pollu\u00adtant takes a long time to degrade natu\u00adrally \u2013 and even then, usually incom\u00adpletely \u2013 the decom\u00adpo\u00adsi\u00adtion needs to be helped along.<\/p>\n<\/div>\n\n\n\n

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Envi\u00adron\u00admen\u00adtally friendly reme\u00addi\u00ada\u00adtion solution<\/h5>\n

A good reme\u00addi\u00ada\u00adtion solu\u00adtion was needed. To find the right measure, site devel\u00adoper LEG Hessen-Hanau GmbH \u2013 an enter\u00adprise of the BIG BAU Group<\/span><\/span><\/span> \u2013<\/span> <\/span>together with the City of Hanau <\/span><\/span><\/span>contracted global infra\u00adstruc\u00adture consul\u00adtancy AECOM<\/a>. A preferred approach quickly emerged: An active ingre\u00addi\u00adent was to be injected into the substrate that would accel\u00ader\u00adate degra\u00adda\u00adtion of the pollu\u00adtants. As it so happened, Evonik Active Oxygens is head\u00adquar\u00adtered in the Hanau area \u2013 and is itself a major supplier of sophis\u00adti\u00adcated tech\u00adnolo\u00adgies for soil and ground\u00adwa\u00adter remediation.<\/p>\n

The degra\u00adda\u00adtion of VOCs can be tricky. A biolog\u00adi\u00adcal or chem\u00adi\u00adcal approach alone is often not enough. That is why Evonik\u2019s EHC\u00ae Reagent<\/a> was selected for the task. This prod\u00aduct is composed of controlled-release organic carbon, with nutri\u00adents derived from a grain-milling by-prod\u00aduct, and micronized zero valent iron (ZVI), sourced from scrap iron. The use of these recy\u00adcled ingre\u00addi\u00adents thus makes EHC\u00ae not only safe to handle and easy to apply, but also an espe\u00adcially sustain\u00adable prod\u00aduct. It is also highly effec\u00adtive against VOCs. Mueller says: \u201cEHC\u00ae Reagent trig\u00adgers phys\u00adi\u00adcal, chem\u00adi\u00adcal, and micro\u00adbi\u00ado\u00adlog\u00adi\u00adcal processes. Inject\u00ading this substance into the subsoil under high pres\u00adsure reli\u00adably leads to the rapid and perma\u00adnent destruc\u00adtion of VOCs in groundwater.\u201d<\/p>\n

The appli\u00adca\u00adtion method for EHC\u00ae Reagent is also advan\u00adta\u00adgeous. Evonik worked together with its field tech\u00adnol\u00adogy part\u00adner Sensatec GmbH<\/a> to pursue \u201cin-situ chem\u00adi\u00adcal reduc\u00adtion\u201d (ISCR). Mueller explains: \u201cWith ISCR, we are apply\u00ading the prod\u00aduct directly into the ground. There is no need to pump out the ground\u00adwa\u00adter, process it, and put it back again. Compared to such a \u2018pump-and-treat\u2019 method, ISCR saves energy, time, and costs.\u201d This also helps make the approach more sustain\u00adable<\/a>. In fact, a well-designed ISCR appli\u00adca\u00adtion such as this one can gener\u00adate signif\u00adi\u00adcantly lower carbon diox\u00adide (CO2<\/sub>) emis\u00adsions than alter\u00adna\u00adtive reme\u00addi\u00ada\u00adtion measures.<\/p>\n<\/div>\n\n\n\n

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Convinc\u00ading results<\/h5>\n

EHC\u00ae Reagent had already proven its effec\u00adtive\u00adness many times before, start\u00ading with soil and ground\u00adwa\u00adter reme\u00addi\u00ada\u00adtion projects in the U.S. That is why, in the summer of 2020, a pilot test was carried out within the cont\u00ada\u00adm\u00adi\u00adna\u00adtion hotspot in Pioneer Park in order to judge its effec\u00adtive\u00adness in the Hanau setting. In prepa\u00adra\u00adtion, AECOM and Sensatec had obtained a precise picture of the compo\u00adsi\u00adtion of the subsoil and the distri\u00adb\u00adu\u00adtion of pollu\u00adtants. They used this high-reso\u00adlu\u00adtion infor\u00adma\u00adtion to inject the solid mixture at several points into the ground under high pres\u00adsure and with pinpoint accu\u00adracy. Subse\u00adquent monthly measure\u00adments of the ground\u00adwa\u00adter confirmed the desired effect: The VOCs, which had been leak\u00ading into the ground for decades, were almost completely degraded after just eigh\u00adteen months. After the pilot test, <\/span><\/span><\/span>any<\/span><\/span><\/span> remain\u00ading detectable substances were signif\u00adi\u00adcantly below the permis\u00adsi\u00adble limit values for groundwater.<\/p>\n<\/div>\n<\/div>\n\n\n\n

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\u201cFor us, the measure\u00adment results confirmed that the ISCR proce\u00addure has once again done an excel\u00adlent job,\u201d says Mueller. \u201cWe there\u00adfore proceeded to treat the remain\u00ading cont\u00ada\u00adm\u00adi\u00adnated areas in the first half of 2023, with full support from the local regu\u00adla\u00adtory agency.\u201d As with the pilot test, special\u00adists from Evonik\u2019s part\u00adner Sensatec took on the tech\u00adni\u00adcal appli\u00adca\u00adtion. At 73 smaller drill points, they used injec\u00adtion probes to push EHC\u00ae Reagent up to 12 meters into the subsur\u00adface, where the suspen\u00adsion once again began its work to degrade VOCs. Today, the qual\u00adity of the ground\u00adwa\u00adter is on track toward the spec\u00adi\u00adfied limits.<\/p>\n

For Hanau\u2019s Lord Mayor Claus Kamin\u00adsky, this approach toward the pollu\u00adtant prob\u00adlem is exem\u00adplary: \u201cIt is impor\u00adtant to us that the soil and ground\u00adwa\u00adter qual\u00adity in Pioneer Park is completely within accept\u00adable para\u00adme\u00adters. Thanks to the compa\u00adnies involved and Evonik\u2019s active ingre\u00addi\u00adent, we are well on our way<\/span><\/span>. The fact that Evonik, a company from the imme\u00addi\u00adate vicin\u00adity, had the right solu\u00adtion ready makes it all the better for me. It\u2019s an excel\u00adlent exam\u00adple of commu\u00adnity at work.\u201d<\/p>\n<\/div>\n\n\n\n

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The project part\u00adners are also satis\u00adfied. \u201cWe are advanc\u00ading the appli\u00adca\u00adtion of sustain\u00adable, in situ reme\u00addi\u00ada\u00adtion tech\u00adnolo\u00adgies in Germany, and the Pioneer Park site is a show\u00adcase exam\u00adple of their success,\u201d remarked Gordon Bures, Reme\u00addi\u00ada\u00adtion Engi\u00adneer at Sensatec\u2019s Berlin office. And Peter Martus, AECOM Envi\u00adron\u00admen\u00adtal Team Leader in Germany, said: \u201cWe have designed a sustain\u00adable solu\u00adtion which reflects Pioneer Park\u2019s ambi\u00adtion to create a climate-friendly neigh\u00adbor\u00adhood. Work\u00ading in collab\u00ado\u00adra\u00adtion with project part\u00adners to test and iden\u00adtify the best solu\u00adtions for the project, the inno\u00adv\u00ada\u00adtive approach we chose now means that the project can move at a faster pace than if we had used tradi\u00adtional reme\u00addi\u00ada\u00adtion methods.\u201d<\/p>\n<\/div>\n<\/div>\n\n\n

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An award-winning example<\/h5>\n

The jury of the 2024 German Brown\u00adfield Awards was also convinced by the results. On 16 May 2024, the Pioneer Park ground\u00adwa\u00adter reme\u00addi\u00ada\u00adtion project took the bronze medal<\/span><\/span> in the cate\u00adgory \u201cEspe\u00adcially Sustain\u00adable\u201d due to its posi\u00adtive social, economic, and envi\u00adron\u00admen\u00adtal impact.<\/p>\n

With EHC\u00ae Reagent, Evonik Active Oxygens offers a proven means of completely reme\u00addi\u00adat\u00ading tough VOC cont\u00ada\u00adm\u00adi\u00adna\u00adtions in a short period of time. In view of the large number of areas in Germany that were formerly used for indus\u00adtrial, commer\u00adcial, or mili\u00adtary purposes, the demand for the envi\u00adron\u00admen\u00adtally friendly, effec\u00adtive, and cost-savings reme\u00addi\u00ada\u00adtion method is on the rise..<\/p>\n

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Hanau\u2019s Pioneer Park neigh\u00adbor\u00adhood is being trans\u00adformed into a modern resi\u00adden\u00adtial quar\u00adter. Cont\u00ada\u00adm\u00adi\u00adnated ground\u00adwa\u00adter at the former mili\u00adtary instal\u00adla\u00adtion is being sustain\u00adably reme\u00addi\u00adated with EHC\u00ae Reagent. <\/p>\n","protected":false},"featured_media":3373,"template":"","article-category":[78],"article-tag":[109,87],"acf":{"top_article":false},"yoast_head":"\nGroundwater remediation through in situ chemical reduction<\/title>\n<meta name=\"description\" content=\"Soil and groundwater from industrial and military sites can often be contaminated. 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Effective remediation is possible with in situ chemical reduction (ISCR).\" \/>\n<meta property=\"og:url\" content=\"https:\/\/active-oxygens-sustainability.evonik.com\/en\/articles\/groundwater-remediation-the-gentle-way\/\" \/>\n<meta property=\"og:site_name\" content=\"Profilwerkstatt | Nachhaltigkeitsseite Active Oxygens\" \/>\n<meta property=\"article:modified_time\" content=\"2024-05-22T15:51:58+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/active-oxygens-sustainability.evonik.com\/wp-content\/uploads\/Pioneer-Park_Header_16-9_Stadt-Hanau_Thomas-Feuerhahn.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"2048\" \/>\n\t<meta property=\"og:image:height\" content=\"1152\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"7 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/active-oxygens-sustainability.evonik.com\/en\/articles\/groundwater-remediation-the-gentle-way\/\",\"url\":\"https:\/\/active-oxygens-sustainability.evonik.com\/en\/articles\/groundwater-remediation-the-gentle-way\/\",\"name\":\"Groundwater remediation through in situ chemical reduction\",\"isPartOf\":{\"@id\":\"https:\/\/active-oxygens-sustainability.evonik.com\/de\/#website\"},\"datePublished\":\"2024-05-14T07:47:52+00:00\",\"dateModified\":\"2024-05-22T15:51:58+00:00\",\"description\":\"Soil and groundwater from industrial and military sites can often be contaminated. 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Contaminated groundwater at the former military installation is being sustainably remediated with EHC\u00ae Reagent. ","permalink":"https:\/\/active-oxygens-sustainability.evonik.com\/en\/articles\/groundwater-remediation-the-gentle-way\/"},"term":{"title":"Ground\u00adwa\u00adter reme\u00addi\u00ada\u00adtion the gentle way","permalink":"https:\/\/active-oxygens-sustainability.evonik.com\/en\/articles\/groundwater-remediation-the-gentle-way\/","categories":"<li class=\"tag-line__item\" data-scroll>\n <a href=\"https:\/\/active-oxygens-sustainability.evonik.com\/en\/article-tag\/soil-remedation\/\"\n alt=\"View all posts in soil remediation\">\n #soil remediation<\/a><\/li> <li class=\"tag-line__item\" data-scroll>\n <a href=\"https:\/\/active-oxygens-sustainability.evonik.com\/en\/article-tag\/water-treatment\/\"\n alt=\"View all posts in water treatment\">\n #water treatment<\/a><\/li> "},"_links":{"self":[{"href":"https:\/\/active-oxygens-sustainability.evonik.com\/en\/wp-json\/wp\/v2\/article\/3385"}],"collection":[{"href":"https:\/\/active-oxygens-sustainability.evonik.com\/en\/wp-json\/wp\/v2\/article"}],"about":[{"href":"https:\/\/active-oxygens-sustainability.evonik.com\/en\/wp-json\/wp\/v2\/types\/article"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/active-oxygens-sustainability.evonik.com\/en\/wp-json\/wp\/v2\/media\/3373"}],"wp:attachment":[{"href":"https:\/\/active-oxygens-sustainability.evonik.com\/en\/wp-json\/wp\/v2\/media?parent=3385"}],"wp:term":[{"taxonomy":"article-category","embeddable":true,"href":"https:\/\/active-oxygens-sustainability.evonik.com\/en\/wp-json\/wp\/v2\/article-category?post=3385"},{"taxonomy":"article-tag","embeddable":true,"href":"https:\/\/active-oxygens-sustainability.evonik.com\/en\/wp-json\/wp\/v2\/article-tag?post=3385"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}