2results about How to "Suitable for separation" patented technology

The present application relates to a kind of layer filter specially used for flocculation, flocculation in sewage after the separation of flocculation body, with the pool body of top opening, the inside of pool body is separated to form water storage area and water storage area by partition;Water storage area is equipped with water inlet pipe, and electromagnetic valve and water inlet quantity regulating valve are arranged on water inlet pipe;Water storage area is equipped with water outlet hose, and one end of water outlet hose is water inlet, and float is fixedly connected around water inlet;The other end of water outlet hose is water outlet, and water outlet is located outside pool body and is communicated with outside;Water outlet hose is equipped with water outlet quantity regulating valve.The water storage area is transversely arranged with at least one layer of filter bag, and the filter bag is made of monofilament filter cloth;One end of filter bag is equipped with water inlet, and the water inlet is communicated with the water outlet end of water inlet main pipe through transition pipe;Partition bottom is equipped with differential pressure gauge.The present application has simple structure, low filtration pressure, fast filtration speed, clear water outlet, and is especially suitable for small-scale sewage flocculation body separation.

This invention provides a method for synthesizing novel natural pigments using phenotypic catechins. Various epicatechins, epigallocatechins, epicatechin gallate esters, and epigallocatechin gallate esters are used as substrates. These are mixed and subjected to a non-enzymatic oxidation reaction under humid and hot conditions to generate a new class of tea pigment compounds. The non-enzymatic oxidation products of the phenotypic catechins are then concentrated under reduced pressure, freeze-dried, extracted, and purified by column chromatography to obtain dimeric catechin pigments. The six novel dimeric catechin pigments obtained by this invention are synthesized using a simple method. The six novel dimeric catechin pigments obtained according to the method of this invention are orange-yellow or orange-red amorphous powders with good color-adjusting capabilities, and can be applied to coloring tea beverages and new-style tea drinks. The discovery of this type of natural pigment contributes to the research on coloring substances during the thermal processing of tea, the improvement of tea liquor color quality, and the development and application in the field of food coloring.