Basalt selectively adsorbs organic toxic materials, such as dioxins, furans, polychlorinated biphenyls (PCBs), bis(2-ethylhexyl)phthalate, arsenic, mercury, chromium, copper, nickel, zinc, cadmium, lead, and the like, from substances such as sediment, which contains water and the toxic materials.

The process for creating one or more engineered media for use in a water purification filter is a passive multi-stage multi-media filter for use in water purification. The process for creating one or more engineered media for use in a water purification filter removes harmful contaminants from a water stream including, but not limited to, toxic heavy metals and metalloids, pharmaceutical residues, micro-toxins, endocrine disrupters, chlorinated and other halogenated solvents, fluoride, nitrate, and naturally occurring radioactive contaminants. The process for creating one or more engineered media for use in a water purification filter maintains concentrations of phytochemicals that provide health benefits. Water processed through the process for creating one or more engineered media for use in a water purification filter meets United States, European Union and World Health Organization standards for safe drinking water.

A water purification electrode composed of a porous carbon material is disclosed. The electrode may be used as a flow-through cathode in an electro-peroxone process providing high H.sub.2O.sub.2 production activity for electrochemical wastewater treatment. The porous carbon material is a binding agent-free carbon structure that enables H.sub.2O.sub.2 to be electro-generated in situ at cathode. The porous carbon material may be synthesized from resorcinol and can provide a relatively large reaction surface area of 200-800 m.sup.2/g. The porous carbon material also achieves low energy consumption as well as a wide pH working range, making it suitable for treating many types of organic, inorganic, and biological contaminants in water. The electrode may be integrated with an anode, ozone generator, and other components into a compact, integrated water purification system.

Basalt selectively adsorbs organic toxic materials, such as dioxins, furans, polychlorinated biphenyls (PCBs), bis(2-ethylhexyl)phthalate, arsenic, mercury, chromium, copper, nickel, zinc, cadmium, lead, and the like, from substances such as sediment, which contains water and the toxic materials.

A method and system for the reduction of contamination in soil and groundwater is provided. Cyclic oligosaccharides can be used, for example, to carry oxidants, carry activators, solubilize organic contaminants and promote biodegradation.

A method and system for the reduction of contamination in soil and groundwater is provided. Cyclic oligosaccharides can be used, for example, to carry oxidants, carry activators, solubilize organic contaminants and promote biodegradation.

A decomposer for an organohalogen compound, containing iron particles comprising iron and iron oxide, wherein the iron particles have a metallic iron content of 15% or more by mass, wherein the metallic iron content is a content of metallic iron in the outermost surface layer of the iron particles to which the ion beam etching has been applied twice under the following etching conditions: degree of vacuum in a chamber: 2.010.sup.2 Pa accelerating voltage of an ion gun: 10 kV emission current: 10 mA etching time: 14 seconds.
The decomposer need not contain copper and has the ability to satisfactorily decompose an organohalogen compound. A method for producing the decomposer is also provided.

The GURU-BRAHMA filter for purifying drinking water is a passive multi-stage multi-media filter for use in water purification. The GURU-BRAHMA filter for purifying drinking water removes harmful contaminants from a water stream including, but not limited to, toxic heavy metals and metalloids, pharmaceutical residues, microtoxins, endocrine disrupters, chlorinated and other halogenated solvents, fluoride, nitrate, and naturally occurring radioactive contaminants. The GURU-BRAHMA filter for purifying drinking water maintains concentrations of beneficial phyto-chemicals including, but not limited to flavonoids, phytosterols, tannins, polysaccharides, saponins, polyacetylenes, that provide many health benefits including natural cleansing of the blood and the liver and protection against the accumulation of bacteria, fungus, and viruses. Water processed through the GURU-BRAHMA filter for purifying drinking water meets United States, European Union and World Health Organization standards for safe drinking water. The GURU-BRAHMA filter for purifying drinking water comprises a filter housing and a plurality of filter modules.

A system and method for contaminant removal from water with biochar are disclosed. An example method includes loading biochar into a porous container. The example method also includes providing the porous container in a protective carrier. The example method also includes providing the porous container with the biochar within the protective carrier into a water body, waterway, or drainage area. The example method also includes sequestering at least some contaminants in the water body, waterway, or drainage area by the biochar in the container. The example method also includes removing the protective carrier with the porous container from the water body, waterway, or drainage area after the biochar has been loaded with nutrients, thereby physically removing the sequestered contaminants from the water body, waterway, or drainage area. The example method also includes providing the biochar loaded with nutrients for a secondary purpose.

A cement composition based on a sulfoaluminate clinker is described, together with its use for agglomerating and inerting sediment/dredging sludge, and the relative inerting method and apparatus.