40results about How to "Cost-effective removal" patented technology

A portable, lightweight digital imaging device uses a slit scanning arrangement to obtain an image of the eye, in particular the retina. In at least one embodiment, a digital retinal imaging device includes an illumination source operable to produce a source beam, wherein the source beam defines an illumination pathway, a scanning mechanism operable to cause a scanning motion of the illumination pathway in one dimension with respect to a target, an optical element situated within the illumination pathway, the optical element operable to focus the illumination pathway into an illumination slit at a plane conjugate to the target, wherein the illumination slit is slit shaped, a first two dimensional detector array operable to detect illumination returning from the target and acquire one or more data sets from the detected illumination, wherein the returning illumination defines a detection pathway, and a shaping mechanism positioned within the illumination pathway, wherein the shaping mechanism shapes the source beam into at least one arc at a plane conjugate to the pupil. In at least one exemplary embodiment, the digital retinal imaging device is operable to minimize at least one aberration from the optical element or an unwanted reflection from the target or a reflection from a device.

A process for removing trace organic substance from water by ozone / ultraviolet ray-biologic activated carbon method features use of an ozone / ultraviolet ray unit and a biologic activated unit, and includes introducing the water to be treated and ozone to ozone / ultraviolet ray reactor containing ultraviolet lamp, mixing, flowing up, staying for 4-20 min to remove the convert the organic pollutant, flowing biologic activated carbon reactor, and staying for 10-80 min to degradate and remove the organic pollutant. Its advantage is high effect.

The invention discloses a device and a method used for processing chemical wastewater with salinity higher than 10%. The device comprises a reaction tank body and a control system. The reaction tank body comprises a sealed electrolysis tank with a water inlet and a water outlet. The sealed electrolysis tank is divided into a first module, a second module, and a third module through separation walls between the water inlet and the water outlet, wherein the modules are sequentially communicated. A plurality sets of electrode plates are respectively arranged in the first module, the second module, and the third module. The control system comprises a central control unit. The control system also comprises a first hydrogen peroxide adding device, a first pH value controller, a second hydrogen peroxide adding device, a second pH value controller, and a stabilized direct-current power supply, which are connected with the central control unit. The device and the method provided by the invention are used for processing chemical wastewater with salinity higher than 10%. The quality of final outlet water is better than that specified by a first-level standard of an Integrated Wastewater Discharge Standard (GB8978-1996).