37results about How to "Reduce reverse osmosis" patented technology

The invention discloses a method for synthesizing a water-absorbing resin, which is characterized in that the method consists of the following parts by weight of raw materials: acrylic acid 200-300, crosslinking agent 1-5, deionized water 700-800, redox initiator 0.5 ‑2, caprylyl glycol 50‑80, ethanol 10‑80, butanediol diglycidyl ether 5‑15, aluminum sulfate 20‑40, silicon dioxide 2‑5 and sodium hydroxide solution. In the present invention, acrylic acid is firstly polymerized at room temperature, then neutralized by sodium hydroxide solution and subjected to surface cross-linking treatment three times to ensure that the water-absorbent resin has high gel strength, high pressure absorption capacity, and good liquid flow. Performance, good water retention capacity, fundamentally solve the contradiction between gel strength and absorption rate, and the synthesized water-absorbent resin performs very well in diapers, not only has a fast infiltration speed but also has ultra-low reflection Penetrating, ultra-dry top layer.

A crucible with impurity removal function used in polysilicon purification or ingot casting, including a cylindrical crucible body, with an overflow hole on the side wall of the crucible body, and a collection tank at the bottom of the overflow hole on the outside of the crucible body ;The height H=H between the bottom edge of the overflow hole and the inner bottom surface of the crucible body 液 +(H 固 -H 液 ) 20%, where H 液 The height of the liquid level in the crucible when polysilicon is liquid, H 固 It is the height of polysilicon crystallized in the crucible. The steps are as follows: put polysilicon material into the crucible, install the furnace for vacuum pre-pumping; enter the first stage of heating and completely melt; grow crystals; anneal to eliminate the internal stress of the crystals; to room temperature; remove the ingot and collect spilled silicon material. During operation, the impurity-enriched area on the top layer is removed in a liquid state, reducing reverse osmosis in the impurity-enriched area after the silicon ingot is formed, and improving the overall utilization of the silicon ingot.

An absorbing product comprises a fluid-permeability top piece, an absorbing core body and a non-fluid-permeability bottom piece, wherein the fluid-permeability top piece, the absorbing core body and the non-fluid-permeability bottom piece are sequentially stacked from top to bottom, at least one absorbing sub-layer in the absorbing core body of the absorbing product is provided with a plurality of through holes which longitudinally penetrate through the at least one absorbing sub-layer, and in the at least one absorbing sub-layer provided with the through holes, the hole diameter of the upper end of the through holes in the absorbing sub-layer closest to the fluid-permeability top piece is smaller than the hole diameter of the lower end. Due to the fact that the through holes which longitudinally penetrate through the absorbing core body are formed in the absorbing core body, a liquid containing space is provided for viscous liquid, the contact area of the viscous liquid and the absorbing product is relatively increased, and accordingly absorption of the viscous liquid is quickened; in addition, in the at least absorbing sub-layer provided with the through holes, due to the shape that the hole diameter of the upper end of the through holes in the absorbing sub-layer closest to the fluid-permeability top piece is smaller than the hole diameter of the lower end, the reverse osmosis of the viscous liquid to the surface of the absorbing product can be reduced, and the overall comfort level of the absorbing product is improved.

The invention provides a moving-bed biological membrane coupled osmosis membrane biological reactor. The moving-bed biological membrane coupled osmosis membrane biological reactor comprises a moving-bed biological membrane reactor, a forward osmosis membrane separation device and a reverse osmosis membrane separation device, wherein the moving-bed biological membrane reactor comprises a moving-bed biological membrane reactor body with an opened top part, and a detachable sealing cover arranged at the position of the opening of the top part of the moving-bed biological membrane reactor body; the moving-bed biological membrane reactor body is provided with a water inlet, a mud outlet and a water outlet; the inner cavity of the moving-bed biological membrane reactor body is provided with an aeration device and filled with a biological carrier; the forward osmosis membrane separation device comprises a forward osmosis membrane assembly, a driving liquid water storage tank and a driving fluid recovery box; and the reverse osmosis membrane device comprises a reverse osmosis membrane assembly and a high-pressure pump. The invention has the following beneficial effects: almost no membrane pollution occurs in the process of treatment; the removal efficiency of nutrient substances is significantly increased; the quality of effluent water is good, and membrane flux is high; and greenness, economy and sustainability are realized.

The invention relates to a skirt-type absorbent article. The skirt-type absorbent article includes an absorbent body and an outer layer. The end is connected with the front waist area and the back waist area of ​​the outer layer; the absorbent body includes a skin layer, an absorbent layer and a breathable bottom layer in turn, and the two sides of the skin layer are provided with The anti-side leakage layer of the layer; the crotch position of the absorbent body, the front waist region and the back waist region of the outer layer are all provided with elastic stretch materials. The skirt-type absorbent article in the present invention has the advantages of comfort, beauty, and fit; the skirt-type absorbent article in the present invention has excellent use effects in terms of aesthetics and comfort, and is a kind of clothing suitable for users to wear directly outside. Lightweight, comfortable and leak-resistant absorbent article.