The present invention relates to a method for treatment and/or purification of water, in particular wastewater or drinking water, preferably for the adsorptive removal of inorganically or organically-based, impurities, such as trace substances and/or micropollutants, wherein, in a counterflow filter device, e.g. a counterflow adsorption filter column, the water that is to be treated and/or that is to be purified firstly, and, secondly, an, in particular particulate, adsorption material are conducted in a counterflow direction. In particular, a procedure is followed in such a manner that the water to be treated and/or purified is passed through a bed of the adsorption material present in the counterflow filter device for the adsorptive removal of impurities and the bed is exchanged and regenerated by preferably continuous removal and supply of the adsorption material in counterflow to the water that is to be treated and/or that is to be purified.

A hollow fiber nanofiltration membrane system and its control method are provided. The system includes a water feeding system, a return system, a hollow fiber nanofiltration membrane group, a water production system, a cleaning system, a dosing system and a program control system. Through the self-matching, self-adaptation and self-adjustment functions of the program control system, an intelligent and accurate operation control is formed according to water quality and operation condition. In the control method, the program control system presets an operation mode according to a preset working condition and an inlet water quality, automatically selects whether to add the scale inhibitor or perform concentrated water return at a beginning of filtration, automatically outputs a dosage of the scale inhibitor or the concentrated water return flow, and monitor a change of the inlet water quality, and the feedwater pressure or a transmembrane pressure in real time.

A water treatment system is provided, including a raw water tank connected to a water supply, a reverse osmosis unit arranged to produce purified water from water input from the raw water tank via a raw water supply line, at least one water treatment facility alongside the raw water supply line downstream of the raw water tank and upstream of the reverse osmosis unit, and a reuse water feedback line arranged to feed waste water and/or grey water collected from the reverse osmosis unit and/or the at least one water treatment facility back to the raw water tank for reuse. In a water treatment method in such a water treatment system, waste water and/or grey water collected from the reverse osmosis unit and/or the at least one water treatment facility is fed back to the raw water tank for reuse.

Disclosed are a sterilizing structure of a water outlet and a water treatment apparatus including the same. The sterilizing structure of the water outlet according to an embodiment of the present invention may comprise a water outlet for discharging treated water treated in a water treatment device externally, and a sterilizer for sterilizing the water outlet.

A grit box to separate particulate matter from an influent stream. The grit box has an upper portion and a lower portion with a deflection plate separating the upper portion from the lower portion. It includes a hopper for accumulation of particulate matter settled from the influent stream. The hopper has a drainage pipe and a valve therebetween to control passage of material from the grit box into the drainage pipe. A mechanism delivers the influent stream at a predetermined and substantially constant flow rate. The influent stream is separated into two or more streams which are recombined under pressure in the grit box in a turbulent mixing zone. The fluid rise rate in the grit box is lower than the settling rate of the particulate matter to be separated from the influent stream.

Systems and methods are provided for the removal and disposal of radium form an aqueous medium. The systems and methods include the removal of radium from a source by contact with either natural or synthetic zeolite. The spent zeolite is monitored for radiation levels and replaced with fresh zeolite when the level of radioactivity reaches approximately 9,000 pCi/g. Spent zeolite is disposed of at a low-level radioactive waste site. A system for monitoring and maintaining radium removal and disposal by an off-site provided is also disclosed.

The invention provides an efficient system for treating livestock waste, particularly waste from cattle or pig farming. The new facility and method employ special transfers of slurry streams through ASBR, SBR, and a unique pretreatment reactor, resulting in treated water, quality compost, and biogas.

A control method of a flocculation washing machine comprises: detecting an amount of washing water V and an amount of a detergent delivered m in a washing procedure to obtain a concentration of the detergent C=m/V; and determining a number of times N of flocculation circulation and a dose M.sub.n of a flocculant corresponding to each flocculation circulation according to the concentration of the detergent C. The number of times N of flocculation circulation and the dose M.sub.n of the flocculant corresponding to each flocculation circulation can be obtained accurately only based on one parameter. Besides, the flocculation treatment and the rinsing procedure of the washing machine are synchronously executed, and at an end node, the concentration of the detergent in the outer drum is lower than a set value, thereby achieving the purpose of removing detergent residual on clothes.

The invention relates to a facility for the treatment of a fluid, comprising a reactor (1) that accommodates a bed of adsorbent media particles, means (2) for injecting and distributing fluid to be treated, which means are in the bottom part of said reactor (1) and are intended to form an ascending flow of fluid within said reactor (1) and allow said bed of adsorbent media particles to be fluidised and expanded, and means (3) for recovering the fluid that has passed within said bed of adsorbent media particles fluidised in this way, characterised in that said reactor (1) is a closed reactor that forms an enclosure making it possible to implement said treatment under pressure, said enclosure having a bottom (11) that accommodates said means (2) for injecting and distributing the fluid to be treated, a substantially cylindrical central body (12) forming a fluidisation column, a substantially cylindrical peripheral body (14) defining an annular chamber (15) around said substantially cylindrical central body (12) delimiting a fluidisation column, said annular chamber (15) accommodating at least one layer of a granular or pulverulent material, a curved cover (13) forming a baffle making it possible to transform said ascending flow into a homogeneous descending flow and to direct said descending flow towards said recovery means (3) via said annular chamber (15).

A hollow fiber nanofiltration membrane system and its control method are provided. The system includes a water feeding system, a return system, a hollow fiber nanofiltration membrane group, a water production system, a cleaning system, a dosing system and a program control system. Through the self-matching, self-adaptation and self-adjustment functions of the program control system, an intelligent and accurate operation control is formed according to water quality and operation condition. In the control method, the program control system presets an operation mode according to a preset working condition and an inlet water quality, automatically selects whether to add the scale inhibitor or perform concentrated water return at a beginning of filtration, automatically outputs a dosage of the scale inhibitor or the concentrated water return flow, and monitor a change of the inlet water quality, and the feedwater pressure or a transmembrane pressure in real time.