METHOD AND APPARATUS FOR USE OF MIXING ELEMENTS IN WASTEWATER/ RECYCLE WATER UV DISINFECTION SYSTEM.

摘要

An apparatus and method for mixing at least one fluid flowing through a fluid system using ultraviolet light to control organisms. Ultraviolet lamps are positioned in the fluid flow and arrays of triangularly shaped mixing elements are arranged at spaced intervals along the length of each lamp, wherein the plurality of arrays of triangularly shaped mixing elements create four vortices surrounding each elongated member forming a square array of vortices. An apparatus and method for mixing at least one fluid flowing through a fluid system using ultraviolet light to control organisms. Ultraviolet lamps are positioned in the fluid flow and arrays of triangularly shaped mixing elements are arranged at spaced intervals along the length of each lamp, wherein the plurality of arrays of triangularly shaped mixing elements create four vortices surrounding each elongated member forming a square array of vortices. The invention provides fabric conditioning compositions, which include as the conditioning agent, one or more quaternary ester ammonium salt compounds, which include a mixture of quaternary mono-, di- and tri-ester ammonium salt components, wherein the amount of quaternary diester ammonium salts is greater than about 40% by weight, and the amount of quaternary triester ammonium salts is less than about 20% by weight based on the total amount of quaternary ester ammonium salts. The composition contains a high level of quaternary diester ammonium salt content, and low level of quaternary triester ammonium salt content.