The Influences of Polydimethyldiallylammonium Chloride with Series Intrinsic Viscosity on Chemical Species Distribution of Aluminum in PAC

A series of composite coagulants with the ratios(m/m) of PAC to PDM of 20:1, 10:1, 5:1 were prepared by using polyaluminum chloride(PAC) with basicity of 52%, 75% and 88%, and polydimethyldiallylammonium chloride(PDM)with intrinsic viscosity of 0.87, 1.66, 2.88, 3.79dL/g as raw materials.The chemical species distribution of aluminum in PAC solution and composite coagulants were investigated by Al-Ferron complexation timed spectrophotometry. The results showed that with the Ferron experiment RSD of 1%~3%, the species distribution of Aluminum hardly changed in composite coagulants with the increase of PDM intrinsic viscosity. With the decrease of ratios of PAC to PDM, the A1b content decrease slightly and A1c content increase slightly. The variation of species distribution of aluminum was influenced by the basicity of PAC obviously. Key words:Polyaluminum Chloride (PAC), Polydimethyldiallylammonium Chloride(PDM), composite coagulants, Al-Ferron complexation timed spectrophotometry, species distribution of Aluminum.

Crown Hotel widow on the death of the spouse charged

The wife of an officer of the Florida Travel Hotel, which was to death in a hotel room in New York last year may be beaten, murderers of her husband leave the room, then gave them a cushion was placed on his head.

Narcy Novack was arrested in Florida today lost on federal charges of conspiracy to intimidate her and kill her husband, 53 years, Ben Novack Jr. at the Hilton in Rye Brook, NY last year.

Ben Novack was the grandson of the founder of the famous Fontainebleau Hotel in Miami Beach. The hotel was a landmark in Miami for over 50 years. In its heyday the hotel with 22 acres of space to be seen. He was the host of the entertainment legend Bob Hope, Lucille Ball, Jackie Gleason, Judy Garland, Milton Berle, Jerry Lewis, Marlene Dietrich, Debbie Reynolds and many others.

It has also been featured in many films, including Goldfinger, Midnight Cowboy, Scarface and Police Academy 5th Tony Soprano, also stayed in an episode of the HBO series.