47results about How to "Strong adaptability to water quality" patented technology

The invention relates to a method for treating domestic sewage of a compound ship. The method is characterized by comprising the following steps: crushing: crushing bigger solid grains in the domestic sewage collected in a collecting jar by using a crushing pump; introducing seawater: mixing the seawater with the sewage at a certain ratio; electrically flocculating: introducing the mixed sewage which is formed after mixing the seawater with the sewage into an electric flocculating device for performing the electric flocculating treatment; electrolyzing: utilizing a water pump to pump the sewage into an electrolytic bath for electrolyzing, oxidizing the sewage in the electrolytic bath, and meanwhile, generating sodium hypochlorite and killing escherichia coli; continuing oxidizing: continuing oxidizing and disinfecting the electrolyzed sewage in an oxidizing collecting jar, and discharging hydrogen generated after electrolyzing; and neutralizing: introducing the sewage into a neutralizing unit, neutralizing residual chlorine, and after reaching the standard, discharging the treated qualified sewage out of a ship board by using a discharging pump. The method provided by the invention has the advantages of high degree of automation, small volume, strong water-quality adaptation, simpleness and convenience in operation and maintenance, safety, effectiveness, and the like. The method is suitable for the ships in various types.

The embodiment of the present application discloses a groundwater restoration system and restoration method, which are used to ensure the continuity of the groundwater restoration effect. In the groundwater remediation system provided in the embodiment of the present application, the circulating well includes an inner well screen, an outer well screen and a well cover. The screen includes the first screen section and the second screen section. The aeration pipe of the aeration system extends into the inner well screen and connects with the aeration head. When the middle screen rotates to the first position, the screen on the first screen section The holes are aligned with the sieve holes on the corresponding inner well screen, and the sieve holes on the second screen section are staggered from the sieve holes on the corresponding inner well screen, so that the screen holes on the corresponding inner well screen The hole is closed. When the middle screen rotates to the second position, the screen hole on the second screen section is aligned with the screen hole on the corresponding inner well screen, and the aeration head is set between the second screen section and the circulation well. between the bottom.

The invention relates to an electric induction condensation ozone flotation-catalytic oxidation multi-factor coupling water treatment system and method; a copolymer of an amorphous hydroxide-metal ion system with polar macromolecules, colloids, emulsified oil and other pollutants is formed in water through an electric induction effect; a nascent state [H] and hydroxyl free radicals formed along with the electric induction condensation process can perform oxygenolysis on organic matters in treated water; then an O3 / Me system is formed by ozone in dissolved gas water and metal ions in the treated water, difficult-to-degrade organic matter structures are promoted to be destroyed, tail end inert groups are converted into functional groups having adsorption activity, and the copolymerization complexing ability of the organic matters with electric induction condensates is enhanced; homogenized micro-bubbles formed by a dissolved gas backflow water system are strongly attached onto the surface of the copolymerization complexing system formed in the water, and the copolymerization complexing system is taken away from the treated water system by floating-upward effect of the micro-bubbles, and thus the efficient solid-liquid separation is completed. The system and the method have strong adaptability, the water quality of the treated water is good, the labor intensity of an operator is low, and main points of the operation are easy to master.

The invention discloses a method for processing acidic wastewater by using modified red mud powder. The method comprises the following steps of A, adding lime milk to adjust a pH value of the acidic wastewater to 6.5-7.5; B, adding the red mud powder into the acidic wastewater processed by the step A according to a mass ratio of the acidic wastewater to the red mud powder being 200:1.5-2.6 ml / g; stirring for 2-3 h at a temperature of 30 DEG C, standing and precipitating for 30-60 min; and separating a supernatant by centrifugation. The method takes full use of the most universal lime neutralization system for processing the acidic wastewater, without reconstruction. Raw materials are cheap; water quality has high adaptability; a process flow is short; preparation and operation of the red mud powder are simple; and processing cost is low, thereby meeting actual requirements of enterprises. Compared with a lime neutralization method, the method provided by the invention takes full use of the characteristics of the red mud residues, and reduces use amount of quick lime. Effluent has low hardness, and does not block pipes and valves or influence stable running of a system. A processing effect is good; and the processed water can be recycled easily. The red mud powder has the advantages of good sediment dehydration property, relatively high metal quality and easy recovery utilization.