Introduction to Dewatering

The process of removing water from soil, sand, sludge, and other solid materials is called dewatering. We’ve listed below some commonly asked questions about dewatering and some basic info about ADsorb-It products. The entire process of dewatering can be done in a variety of ways and methods, including but not limited to centrifugation and filtration. Here are some basic questions and answers so you can learn more about our products and the entire dewatering process.

How Do Dewatering Products Work

Dewatering products work by keeping certain solids, such as sediment, to remain trapped – allowing the water to pass through the small holes through the fabric or filter. When looking for dewatering products, you want to make sure that you check the micron rating and effluent quality as you want to choose one based on the system you’re using, the type of sediment, and the operating conditions. Dewatering products may have the same use but are used differently depending on the project and the site.

Dewatering Bags: These are often used on construction sites and small ponds. Because of their large size, dewatering bags can capture allot of sediment while attempting to capture oils so be mindful of how you will transport the dewatering bag once it is “full”. 

Dewatering Bags

Dewatering Socks: Dewatering socks, on the other hand, are specifically designed to filter water from hoses and pipes. They are smaller and often times easier to manipulate and transport. 

Dewatering Socks

When Should I Use Dewatering Socks?

Whenever you’re filtering oil from water via hoses and pipes, dewatering socks make a great choice. You can find these socks in a variety of diameters but make sure that you choose one based on the approximate flow rate, not the diameter of your discharge pipe. For example, if you have a 2″ discharge pipe, you may think that you would want to use the ADsorb-it SFS3-30 filter sock but that is incorrect. The water pressure from a 2″ discharge pipe would very likely blow the sock right off the end of it. You’d likely be better off using the SFS8-5 or SFS8-10 filter socks. Remember, the larger the sock, the more surface area will be available for retaining oils. Also, it bears repeating that the ADsorb-it filter socks are most effective at retaining oils, not just capturing sediment. If capturing sediment is your main priority, take a look at our Sedi-Sock:

  • Provides fine particulate filtration as a dewatering option to help achieve compliance with regulatory discharge standards
  • Excellent flow rate in excess of 150 gpm 
  • Tremendous cost savings compared to vacuuming, transporting and off site water disposal
  • “Environmentally Compatible” and disposable as a fuel source
  • Available with or without a 2” male CamLock Fitting w/ wormdrive hoseclamps

Choosing the right size or type of filter sock can be a challenge so please contact us to inquire about the best solution for your application. We’re here to help!