Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Control of sulfides in aqueous systems
T102905 Control of sulfides in aqueous systems
Patent Drawings:

Inventor: Kibbel, Jr.
Date Issued: April 5, 1983
Application: 06/308,625
Filed: October 5, 1981
Inventors: Kibbel, Jr.; William H. (Pennington, NJ)
Assignee:
Primary Examiner:
Assistant Examiner:
Attorney Or Agent:
U.S. Class: 210/759; 252/186.31
Field Of Search:
International Class: C02F 1/72
U.S Patent Documents:
Foreign Patent Documents:
Other References:









Abstract: Solid peroxygens may be compressed into shaped forms with or without additives to regulate the dissolving rate of the forms. Use of such peroxygen forms provides a simple and inexpensive method to dispense active oxygen and an alkali into a solution over a predetermined time to oxidize sulfides to sulfates and thus to reduce the chemical oxygen demand. Sodium carbonate peroxide and sodium perborate are two commercial peroxygen compounds particularly useful for this application as they provide both the active oxygen to oxidize the sulfide, and the alkalinity required to raise the pH of the solution to pH 8 or greater, thus preventing the formation of elemental sulfur. In addition, the two compounds are compatible with additives, such as carboxymethylcellulose and methylcellulose, which are useful in regulating the dissolution rate, as well as soda ash, which can be used to provide additional alkalinity.
Claim:
Description:
 
 
  Recently Added Patents
(4936
Range extension techniques for a wireless local area network
Housekeeping cart
Analysis, secure access to, and transmission of array images
Interaction analysis and prioritization of mobile content
Method to quantify siRNAs, miRNAs and polymorphic miRNAs
Isolation rings for blocking the interface between package components and the respective molding compound
  Randomly Featured Patents
Magnetic recording medium
Auto-flush system
Methods and apparatus for antimonide-based backward diode millimeter-wave detectors
Semiconductor laser and apparatus
Apparatus and method for electrical testing of electrical circuits
Chrysanthemum plant named `Zanmutomic`
Method and system for customizable flow management in a cellular basestation
Wheel cap
Stabilization of body-care and household products
Coil