Nailing Down Permit Details
Once you are directed to the proper state authority you will encounter various requirements for effluent, turbidity, and chemical analysis. Generally speaking, coastal states have more stringent standards than inland states. Each state has a different permit application process and some require professional engineering certification. There can be significant fines for proceeding with a dredging project without prior permit approval. Save yourself time, money, and a headache — make sure your permits are in order.
Geotubes are large, synthetic bladders used to dewater solids with the aid of polymer injection. Typically biosolid residue ponds are only 5%-10% solids by weight. Water treatment residue may measure slightly higher. The purpose of geotubes is to settle out residue particles and return the clarified water to its source. With time geotubes can dewater the material to be 30%-65% solids, depending upon the material. Haulage costs are significantly reduced by hauling 50% solids instead of 5%.
An Expanding Market
We performed our first geotube project in 2008. This market is expanding and in the last two years geotube projects represented 75% of our work. Energy Resources, Inc. has the equipment and manpower to perform these specialized projects.