摘要:
A device for purifying water, making use of a membrane filter and pipes and pumps needed for that purpose, which device comprises a supply line for water to be purified, which supply line is connected to at least one filter unit, the discharge line of which at least one filter unit is connected to a storage tank for the thus treated water, which storage tank is provided with a discharge line for purified water, whilst one or more purification units are disposed between the filter unit and the storage tank, wherein at least one purification unit comprises a disinfectant dosaging system.
摘要:
The invention relates to a container (14) with a content (8), which comprises at least one hypochlorite compound, in particular a calcium hypochlorite compound, for generating an aqueous solution, and with at least one inlet attachment (46) for attachment to a water supply line (48) and at least one outlet attachment (50) for attachment to an outlet line (52, 92) for a liquid composed of the incoming water and of the content (8), wherein the content (8) is located in accordance with the flow between the inlet attachment (46) and the outlet attachment (50), and the container (14) is designed as a transportable exchange unit that is sealed off from the outside in the unattached state. The invention further discloses a device for producing a disinfecting solution, and a method for generating such a disinfecting solution and for treating an aqueous system.
摘要:
The specification discloses a borate microemulsion product. In one embodiment, the borate microemulsion includes from about 24 to about 32 weight percent emulsified sodium pentaborate; and from about 24 to about 32 weight percent particulate boric acid suspended therein. The microemulsion has a density of about 9.5 to about 10.5 pounds per gallon at about room temperature. In certain embodiments, the microemulsion has a viscosity of about 1200 to about 1520 at a temperature of from about 66 °F to about 70 °F. In certain other embodiments, microemulsion has a viscosity of about 1000 to about 3000 at a temperature of from about 70 °F to about 75 °F.
摘要:
Water is supplied from a mains water supply station (6) to a main supply- conduit (12) which feeds a plurality of regional supply networks (14,16,18), via respective pressure reducing valves (20, 22, 24), at respective regional pressures. Each regional supply network has a boundary value for a parameter related to a property of the water, which may be water pressure or concentration of a water treatment agent. Each network has a critical point at which the value of the parameter is deemed least acceptable. Water supply characteristics in respect of each regional supply network (14,16,18) are monitored and the water supplied into the main supply conduit is processed to ensure acceptable values of the parameter are maintained at each critical point. Processing of the water may comprise controlling the output of one or more pumps arranged to pressurize the water supplied into the main supply conduit (12), or it may comprise controlling the addition of water treatment agent. Moreover, the processing of the water may be dependent on any one or more of : time, hour of the day, season, ambient air temperature.
摘要:
Processes for biofilm or microorganism growth control in an aqueous system such as a pulp, paper or board manufacturing system are described in which a halogenated hydantoin is added to the aqueous system in combination with haloamine, chlorine dioxide or a combination thereof. The halogenated hydantoin is preferably a fully or partially halogenated dialkyl hydantoin, and more preferably 5,5-dimethyl hydantoin or 5-methyl-5-ethyl hydantoin. The haloamine is preferably a monohaloamine, dihaloamine, trihaloamine, or a combination thereof, and more preferably monochloramine, monobromamine, bromochloroamine or a combination thereof. The halogenated hydantoin is preferably added to the aqueous system in portions of the system susceptible to gas phase corrosion, such as the short loop of the system (200), and the haloamine and chlorine dioxide are preferably added to other portions of the system. The halogenated hydantoin and haloamine and/or chlorine dioxide maintain good compatibility with each other in the absence of excess free chlorine.
摘要:
The present invention relates to a compacted solid product for water purification comprising: - at least a first layer comprising at least a coagulant/flocculant system comprising at least one polyvalent inorganic salt, at least one water-soluble cationic polymer and at least one high-molecular-weight anionic polymer, - at least a second layer comprising at least one disinfectant that releases active chlorine on contact with water, characterized in that said coagulant/flocculant system moreover comprises a sodium alginate. The invention also relates to the method for preparing such a product.
摘要:
Heat transfer test assemblies for monitoring and recording fouling of aqueous systems are disclosed. The heat transfer test assemblies include an outer tube member, a heating rod positioned within the outer tube member, a ribbed tube sleeve fitted over the heating rod and thermocouples for sensing the wall temperature of heating rod. The disclosed heat transfer test assemblies enable improved monitoring of systems employing enhanced heat exchanger tubes. Monitoring and recording apparatuses including the heat transfer test assemblies are also disclosed.
摘要:
The invention relates to a method for the treatment of water using chlorine dioxide (C102), wherein the reaction chamber, in which the C102 is created, is completely surrounded by the water to be treated. The C102 created in the reaction chamber is directly added to the water to be treated from the reaction chamber. The conductivity value in the solution exiting the reaction chamber can be measured. Preferably the C102 is created from sodium chlorite using hydrochloric acid.
摘要:
Aromatic N-halosulfonamide organic compounds have been known for over one hundred years. The ability of these compounds to release active halogen ions has been utilized in a range of biocidal and fungicidal applications. The most widely used halogen sulfonamide organic compound for these applications is Chloramine-T. This invention deals with the new use of discovered compositions of matter, halo active aromatic sulfonamide organic compounds and use of solutions of these compounds as, odor control agents. The odor control solutions may be buffered to a predetermined pH. The odor control compositions may further incorporate small percentages of low molecular weight alcohols and wetting agents.