2022-02-22
Hengyang Industry carries out all necessary steps for site rehabilitation. Soil remediation is a complex process which requires careful attention in investigation, expertise in identification of the optimal method, and correct application of the mechanical, physiochemical, thermal, or biological remediation procedures. Remediation can be done on-site or off-site and is adaptable to every type of contamination.
Remediation of soil contaminated by oil, chemicals, acid tars & mercury using methods like:
Soil washing
Stabilization
Solidification
Bioremediation
Ecological restoration
The selection process must consider many inputs and depends on several factors that are carefully analyzed by our experts. Selection process is especially important because for a given soil contamination scenario, there often is no single remediation technology that is the obvious choice. In general, several technologies may be applicable. The challenge is to choose the best applicable technology, the one that offers the required clean-up effectiveness at the lowest cost. Laboratory or field treatability studies of the most applicable technologies are often performed as part of the selection process. If multiple contaminants are present (e.g., metals and hydrocarbon), more than one remediation technology may be required. For example, while bioremediation or thermal desorption will remove hydrocarbon contamination, they do not impact metals. Soil washing does not do as well in removing hydrocarbon, but does remove metals. When clean-up units are run in series, this arrangement is referred to as a treatment train.
In most cases soil contamination occurs at manufacturing sites; that is mainly, refineries and petrochemical plants. At these sites, much of the impacted soil will be contaminated with aged heavy petroleum hydrocarbons and byproducts. Also occasionally soil contamination with lighter products (e.g., gasoline, diesel), is found in manufacturing sites.
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