Laserfiche WebLink
Oxygen Release Compound,ORC® <br /> � Disposal Issues <br /> Upon the completion of a ORC filter sock application, usually about six months, the <br /> disposal of the product becomes an issue. <br /> The status of the product is that it will form a weakly cemented magnesium hydroxide <br /> and sand matrix by the time it is removed from the wells in which it is placed This is <br /> essentially a solid block of Milk of Magnesia and sand in a 50:50 ratio It may have <br /> absorbed minor amounts of the target hydrocarbons during exposure,however, it is clear <br /> that if the spent material was exposed to the air it would soon dissipate or be further <br /> remediated since it would retain moisture for a period Spent product set on a tarp and <br /> exposed to air would probably allow ND to be reached in a short period on the <br /> assumption compounds were present The larger problem is the cost of testing the filter <br /> socks <br /> It is probably easiest to simply dispose of the spent filter socks in drums at a cost of <br /> approximately $100 per 55 gallon drum For each of the Regenesis filter sock products <br /> • there are the following approximate unit disposal charges <br /> Filter Sock Size Number/55 gal Drum Unit Disposal Cost <br /> 6-inch diameter 15 to 20 $3.75 to $5.00 <br /> 4-inch diameter 45 to 60 $125 to $1.66 <br /> 2-inch diameter 110 to 150 $0.50 to $0.66 <br /> In a typical scenario, 150 socks would be in a barrier, and would be changed out twice <br /> a year. A total of 300 socks would therefore cost between $ 150 and $1500 per year for <br /> disposal depending on size,not including drum cost and labor for retrieval and handling. <br /> R EG EN E- LS ------------ ----------------- <br /> 0 Bioremediation Products 27130A Paseo Espada, Ste 1407, San Juan Capistrano, CA 92675 <br /> Phone 714-443-3136 Fax 714-443-3140 <br />