2 results about "Primary treatment" patented technology

The invention relates to the technical field of water treatment, and particularly relates to and discloses a treatment method for recycling high-hardness and high-salinity waste water. The treatment method comprises the following steps: (1) removing organic matters, softening and removing salt for the first time by using a primary treatment system; (2) removing organic matters, softening and removing salt for the second time by using a secondary treatment system; (3) performing evaporation and freezing crystallization treatment on concentrated liquid. According to the treatment method for recycling high-hardness and high-salinity waste water, a physical and chemical treatment and membrane integrated technology and an evaporation and freezing crystallization technology are combined, high-quality water can be recycled, the resin is softened to regenerate internal supply of an acid and alkali medicament, industrial salt is generated, resources are utilized effectively and comprehensively,long-term effective and stable operation of the system is guaranteed, and the advantages of good treatment effect, stable and reliable operation and capability of completely utilizing resources are achieved.

The invention discloses an ore pulp pH value online titration measuring device. The ore pulp pH value online titration measuring device comprises an ore pulp sampling and processing device, an ore pulp secondary filtering device and an automatic titration device, wherein the ore pulp sampling and processing device further comprises an ore pulp lifting device, an ore pulp primary treatment device,a ore discharge valve, a sampling bypass valve and a sampling valve; the ore pulp secondary filtering device adopts a filter element gravity filtering mode to process the conveyed ore pulp solution, and further comprises a solution buffering barrel, a bypass valve, a filter tank, a filter element, a liquid level switch and an emptying valve; the automatic titration device is used for realizing automatic titration measurement by utilizing a photometric titration method, and further comprises a multi-path switching device, a sampling pump, a micro electromagnetic valve set, a first peristaltic pump, an injection pump and a photometric device. The ore pulp pH value online titration measuring device realizes online high-precision measurement of the pH value of the ore pulp, and the problems ofmeasurement precision and stability existing in an electrode method are solved.