Control system and process for wastewater treatment

A waste water treatment and fluid technology, applied in water treatment parameter control, water/sewage treatment, chemical instruments and methods, etc., can solve the problems of large system, time delay, not receiving mixing time and mixing energy, etc.

Inactive Publication Date: 2009-08-12
WORLD WATER TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Conventional systems are generally inefficient and generally require long periods of time to properly remove waste using chemical additives
These systems are often extremely large and occupy a valuable place in the production facility
Additionally, time delays create the possibility that the contaminated stream will not receive the proper chemical mixture, mixing time and mixing energy to effectively remove its waste

Method used

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  • Control system and process for wastewater treatment
  • Control system and process for wastewater treatment
  • Control system and process for wastewater treatment

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Embodiment Construction

[0029] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

[0030] [Paragraph 29] This disclosure of wastewater treatment control systems and methods is generally referred to by reference numeral 10, as shown in the exemplary drawings for purposes of illustration. Turning now to the representative drawings in the specification, figure 1 A wastewater treatment control system 10 is shown having a mixer 12 fluidly coupled to a nucleation chamber 14 disposed within a flotation cell 16 . The mixer 12, which will be described in more detail herein, is specifically designed to mix chemical additives, gases etc. into the contaminated liquid. The gas is entrained in the liquid at a small size to adhere to the solid particles and flocculants. Thereafter, as the liquid passes through the nucleation chamber 14 , the bubble size increases and lifts the float and solid contaminants towards the surface of the flotation cell 16 . Eventually, the floating particles form a sludge or scum 18 whil...

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Abstract

A system and process is provided for optimizing chemical additions, mixing energy, mixing time, and other variables while treating a contaminated liquid stream. Samples from the contaminated liquid stream are tested to determine the optimal parameter for each variable, including type and amount of the chemicals to be added, chemical sequence, mixing energy, mixing time, temperature, and pressurization. A system of mixers, a flotation chamber, and a dewatering subsystem are designed to achieve optimal turbidity of the wastewater stream. The system can be modified in real-time in response to a continually changing contaminated liquid stream via a controller and set of sensors, valves, and ports.

Description

Background of the invention [0001] [Paragraph 1] The present invention relates generally to wastewater treatment. More specifically, the present invention relates to control systems and methods for wastewater treatment, including control of monitoring and adjusting mixing time, mixing energy, and the amount of chemicals in wastewater to optimize waste removal from a constantly changing liquid stream via a unique flotation system system. [0002] [Paragraph 2] Industrial wastewater treatment presents many challenges to current technologies. Contaminants are usually in the form of suspended solids. Such solids range in size from macroscopic (inches to hundreds of microns) to colloidal (submicron) to nanoscale particles. Immiscible oils and other lipophilic substances (called hydrophobic substances) are also sometimes present and are emulsified (solubilized) with the addition of suitable emulsifiers - surfactants (detergents) or surface-active polymers. Cost-effective, reliab...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/24
CPCB01F3/0446C02F2301/024C02F1/56C02F2209/11B01F13/1016B03D1/1431B01F5/0057C02F2301/066B03D1/1462B01F13/1013B03D1/082B01F5/0451C02F1/5209C02F2301/026C02F2209/06C02F2209/005C02F2209/40B03D1/247C02F1/24B01F23/232B01F25/10B01F25/3131B01F33/81B01F33/811
Inventor 达瓦恩·E·莫尔斯
Owner WORLD WATER TECH
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