An automatic rainwater collection system, with a high degree of autonomy and sensitivity, which allows the collection and use of rainwater, in open spaces, areas of difficult access and/or lacking of water extraction systems, as well as in domestic spaces such as gardens or roofs, without additional adaptations for its use and which works with solar energy. The automatic rainwater collection system is conformed by: a flower-shaped obturable rainwater receiving element, which comprises: a plurality of internal petals and a plurality of external petals that can be opened or closed in an automated manner, a sensor with high sensitivity to droplet impacts and/or relative humidity, which is operatively connected to a motor to control the opening and closing of the plurality of petals of the rainwater receiving element; a support frame, which functions as a support for the obturable rainwater receiving element and as a water storage media; a modular system for filtering water, connected to said central media of water accumulation, which comprises a plurality of filtering modules, which provide different filtering options depending on the quantity and combination thereof in order to obtain different qualities of water for use in several activities; and a water storage media, which further functions as base and support of the collection system.

Biocide can be controllably added to a feed stream for a membrane. In some examples, the feed stream is separated into a primary feed stream and a secondary feed stream, for example, with the secondary feed stream having a lower flow rate than the primary feed stream. The secondary feed stream may be used to monitor and control the addition of the biocide, which is then diluted when the secondary feed stream is combined with the primary feed stream to form a combined stream for delivery to the membrane.

The present invention describes an automated, transportable and energy-efficient with a hybrid power capacity wastewater treatment facility that allows for the disinfection of contaminated sanitation wastewater in order to preserve the environment and provide a greater availability of this resource and its reuse. The facility described in the present invention allows to carry out a process for water treatment in five stages based in equalization, oxidation sedimentation, disinfection and filtration. Moreover, it has a photovoltaic feeding system and a night lighting system that allows the operation of the facility in a hybrid way during the day and the night, as well as a structure that allows its easy transportation. Finally, the facility has an automated system comprised by a control panel that allows to manage and monitor every operational condition of it, that integrates and sends all processed programmable information to a programmable logic controller.

The invention provides a system for sanitizing fluids such as water and air. In particular, the invention provides a combination of solid chlorhexidine and a polymer matrix, for which effluents are essentially free of leached chlorhexidine. The systems enable rapid disinfecting of fluids, including in line at the point of use, and can be employed for both high volume applications and disposable single-use applications.

An apparatus for the treatment of wastewater having: a primary treatment module with at least one solids separation filter; a secondary treatment module with at least one microflotation unit and at least one oxidation treatment unit placed downstream of the at least one microflotation unit, the at least one oxidation treatment unit has an advanced oxidation process module for performing chemical processes, the advanced oxidation process module performing an ozone and hypochlorite treatment; a tertiary treatment module including at least one membrane filtration unit; the apparatus provided with sequentially flowing wastewater from the primary treatment module, through the secondary treatment module, and to the tertiary treatment module. A method for wastewater treatment in an apparatus having as sequentially treating wastewater through the primary treatment module, the secondary treatment module, and the tertiary treatment module.

The present invention relates to a family of very stable aqueous hypochlorite products and methods for reducing the self reactivity of Ca(OCl).sub.2.

The present invention relates to a family of very stable aqueous hypochlorite products and methods for reducing the self reactivity of Ca(OCl).sub.2.

The present invention refers to an industrial process and system that is efficient and advantageous for inactivation of liquid wastes contaminated by mutagenic, genotoxic and/or teratogenic substances arising from high potency APIs production using inactivation chemical agents and excluding ozone, heat or UV light source.

The present invention refers to an industrial process and system that is efficient and advantageous for inactivation of liquid wastes contaminated by mutagenic, genotoxic and/or teratogenic substances arising from high potency APIs production using inactivation chemical agents and excluding ozone, heat or UV light source.

A system and method are disclosed which significantly improves the control of conductivity, concentration of free residual chlorine, basin level, and pH in forced-draft open recirculating cooling towers, with a basin capacity of 750,000 gallons of water or more. Conductivity, free residual chlorine, basin level, and pH are each controlled by a programmable PID controller operating in a sampled-data environment where the set point is a continuously updated rate-of-change set value for conductivity, free residual chlorine, basin level, and pH based on a near-time prior manipulated value. Programmable PID controller outputs to each control element a manipulated value to bring the rate-of-change of the process value equal to the rate-of-change of the set value.