土壤蒸汽萃取技术

When Soil Vapor Extraction (SVE) technology is selected as the best available remediation methodology, it is important to understand the rate of concentration decay. The 80/20 rule for SVE applications considers that 70%-80% of the hydrocarbon mass trapped in the soil will be extracted within months after starting but concentration will be high loadings of 50%-100% of the Lower Explosive Limit (LEL). The remaining 0%-30% will be the longest operating condition at concentration loadings of less than 25% of the LEL.  Understanding this traditional school of thought assists when selecting the most cost-effective oxidation technology.

船 & 海岸环境 will not only manufacture oxidizers for soil vapor extraction (SVE) applications, but can also integrate SVE blowers on the oxidizer skid. 远程挂载刹车系统, 货物集装箱内的全封闭包装, 也有预制建筑. 视设计条件而定, we can assist with blower technologies including: regenerative, 容积式, 离心风机, 扶轮爪, 液环, 和多级风机. 作为你的工程顾问, we can assist with the evaluation of appropriate blower selection that will meet performance specifications and other aspects such as noise level and maintenance requirements.

Once the appropriate SVE blower is selected, 船 & Shore Application Engineers will help you decide the best oxidizer for the project. Determined by various factors, we can evaluate and compare all available technologies. If the initial concentrations are above 50% LEL, then the 直接燃烧的热氧化剂 would typically be selected (with or without a 热交换器). 一旦浓度下降到LEL的25%以下, this thermal oxidizer can be converted to catalytic mode. One drawback when selecting this system is that once concentrations fall below 12%-13% LEL, 氧化剂将使用补充燃料, 增加了整个生命周期的成本.­

土壤蒸汽萃取氧化剂
土壤蒸汽萃取氧化剂

直接燃烧热氧化剂的例子

创新热氧化剂制造商

在过去的十年里,船 & Shore has made significant advancements to the proven 再生热氧化剂(RTO)技术.  传统上, the smallest RTO commercially available would have a minimum flow rate of about 2,500 scfm; however, our proven RTO design allows us to manufacture units rated from 500 scfm to 80,000年scfm. For remediation applications, this is important as the total life cycle costs are reduced. 船 & Shore RTOs can also manage the initial high loading and are flexible enough to automatically manage process air as concentrations drop.  不像传统的热氧化剂设计, there is no need to modify the controls when changing over to the catalytic mode and costly catalyst replacement after 50,000小时使用. 与催化热氧化剂相比, our innovative RTO technology will not need supplemental fuel until you reach 2%-3% of the LEL, thereby dramatically reducing annual fuel costs.

SCFM再生热氧化剂
RTO热氧化剂例子

Example of 1,200 SCFM regenerative thermal oxidizer (RTO)

根据具体场地要求, we are happy to assist with SVE blower selection and manufacture the system to meet any design conditions, but we will also evaluate and compare overall life cycle costs for any of our oxidizer technologies.  让船 & Shore help you select the best oxidizer for Soil Vapor Extraction application.

请求报价