A solid waste treatment method includes the steps of: degradation and sterilization via chlorination of the solid waste, stabilization of the solid waste and regeneration of biomass to reduce or eliminate solid waste. The solid waste treatment method may be utilized in agricultural, industrial or municipal settings.

The present invention provides compositions and methods of reducing cyanuric acid levels in recreational water systems.

Described herein is a filtration medium comprising a carbon substrate having a surface of CO.sub.xE.sub.y, wherein E is selected from at least one of S, Se, and Te; and wherein x is no more than 0.1 and y is 0.005 to 0.3; a filtration device comprising the filtration medium; and methods of removing chloramines from aqueous solutions.

A photocatalytic composition is disclosed that includes a silver halide in combination with one or more rare earth elements. The composition may be used for the photocatalytic degradation of pollutants.

A high efficiency treatment system (system) wastewater treatment system including a tank with a multi-chamber tank system that is designed to remove pollutants from domestic wastewater. Embodiments of the system consist of a pretreatment chamber, which is in fluid communication with an anoxic chamber, which is in fluid communication with an aeration chamber, which is in fluid communication with a clarification chamber, and which is in fluid communication with a polishing chamber. The system can be applied to remove suspended solids, BOD, ammonia, nitrate and TKN from wastewater.

The invention relates to methods for recovering a fluorinated surfactant molecule from an aqueous or mixed aqueous organic solution, comprising the step of contacting said solution containing a fluorinated surfactant with a zeolite that has pores delineated by rings that comprise between 10 to 14 tetrahedrally coordinated framework atoms (‘T’).

A ballast water treatment system includes: a chemical agent container for containing a chemical agent for a ballast water treatment; a chemical liquid preparation tank having a tank main body for containing the chemical agent supplied from the chemical agent container and water for dissolving the chemical agent, and a mixture part for mixing the chemical agent with the water in the tank main body; a chemical liquid storage tank for storing the chemical liquid obtained by dissolving the chemical agent in the water in the chemical liquid preparation tank; and a chemical liquid supply part for supplying the chemical liquid stored in the chemical liquid storage tank into ballast water.

An electrolyzed water-manufacturing apparatus comprises: a flow-through-type electrolysis tank, having a pair of electrodes disposed parallel to each other, obtained by forming an anode chamber and a cathode chamber with a diaphragm stretched between the electrodes parallel therewith, and through which water flows through the anode chamber and the cathode chamber sequentially; a electrolysis starting water supply tube connected to the inlet of the anode chamber for supplying electrolysis starting water only to the anode chamber; an electrolyzed water extraction tube connected to the outlet of the cathode chamber for extracting the electrolyzed water; a circulation tube connecting the anode chamber outlet to the cathode chamber inlet; a free chlorine-removing filter disposed in the circulation tube; and a circulation tube formed downstream of the free chlorine-removing filter.

A method for increasing the quantity of dissolved oxygen in water includes addition of an oxidant to the water to increase the oxidation-reduction potential (ORP) of the water to between about 400 and 850 mV, followed by electrolysis to generate oxygen gas. The voltage applied to the electrolytic cells during electrolysis is less than 300 mV. The dissolved oxygen content of the water exiting the electrolytic cell is about 90% of saturation to super saturation.

A negative hydrogen ion intelligent filtration system includes a housing; a filtering mechanism disposed in the housing and comprising a first filter, a second filter connected to the first filter, a third filter connected to second filter, a fourth filter connected to the third filter, a fifth filter connected to the fourth filter, a sixth filter connected to the fifth filter, a seventh filter connected to the sixth filter, an eighth filter connected to the seventh filter, a ninth filter connected to the eighth filter, a tenth filter connected to the ninth filter, a eleventh filter connected to the tenth filter and a twelfth filter connected to the eleventh filter; an inflow port connected to the first filter and extending out of the housing; an outflow port connected to the twelfth filter and extending out of the housing; and a flow rate control mechanism disposed in the housing, located between the first filter and the inflow port and connecting the first filter and the inflow port.