Abstract: A sediment treatment system for desorption of contaminants and treatment of contaminated sediments, the system comprising a sediment inlet system, a sediment/slurry tank, wherein an outlet of the sediment inlet system feeds into an inlet of the sediment/slurry tank, a water make-up tank, wherein an outlet of the water make-up tank is connected to the inlet of the sediment/slurry tank, a mixing tank/reaction vessel, wherein an outlet of the sediment/slurry tank is connected to an inlet of the mixing tank/reaction vessel, a catalyst storage tank comprising a catalyst and, optionally, a chelator, wherein an outlet of the catalyst storage tank is connected to the inlet of the mixing tank/reaction vessel, and an oxidant agent storage tank comprising an oxidant agent, wherein an outlet of the oxidant agent storage tank is connected to the inlet of the mixing tank/reaction vessel is disclosed. A method for treatment of contaminated sediments is also disclosed.

Abstract: A system for treatment of contaminated sediments and soils using free radical chemical reaction and phase separation processes comprises a sediment or soil inlet system, a slurry tank, wherein the inlet system feeds the slurry tank, a water make-up tank, an optional acid storage tank, wherein the water make-up tank and the acid storage tank are connected to the slurry tank, a reaction vessel, wherein the slurry tank is connected to the reaction vessel, an oxidant agent storage tank, an optional catalyst storage tank, wherein the oxidant agent storage tank and the catalyst storage tank are connected to the reaction vessel, a first particle separator, wherein the reaction vessel is connected to the first particle separator, and an oil/water separator, wherein the first particle separator is connected to the oil/water separator is disclosed. A method for treatment of contaminated sediments and soils is also disclosed.

Abstract: A system for treatment of contaminated sediments and soils using free radical chemical reaction and phase separation processes comprises a sediment or soil inlet system, a slurry tank, wherein the inlet system feeds the slurry tank, a water make-up tank, an optional acid storage tank, wherein the water make-up tank and the acid storage tank are connected to the slurry tank, a reaction vessel, wherein the slurry tank is connected to the reaction vessel, an oxidant agent storage tank, an optional catalyst storage tank, wherein the oxidant agent storage tank and the catalyst storage tank are connected to the reaction vessel, a first particle separator, wherein the reaction vessel is connected to the first particle separator, and an oil/water separator, wherein the first particle separator is connected to the oil/water separator is disclosed. A method for treatment of contaminated sediments and soils is also disclosed.

Abstract: Herein taught is a novel protective cover plate for temporarily covering a prior art electrical outlet box during the construction process so as to protect the electrical outlet box from contaminants, such as plaster, joint compound, or the like. The cover plate is formed from any suitable material that can be corrugated so as to form ridges and grooves. This arrangement provides unusual results as it provides a natural finger grip and it allows the cover plate to be easily adapted or modified on site so as to be useable with substantially any type, style or various size of electrical outlet box.

Abstract: A prefabricated concrete wall with outer and inner wall panels seperated by a rigid insulation panel and air cavities, that allows each wall to expand and contract independently. Mounting brackets are embedded in the panels to allow the inner panel to be raised and dropped into place and openings for doors and windows are provided as well as cavities for electrical service panels, plumbing, electrical boxes, etc. The outer panels are joined together by pins and the base mounting brackets have slotted holes to allow the panels to expand and contract. Also, the outer surfaces of both the inner and outer panels may have finished surfaces to take the appearance of stucco, bricks, stones, or wood panels, etc.