Aeration control system and method for wastewater

Patent metadata

Field	Value
Publication number	US-2018127286-A1
Application number	US-201615379384-A
Country	US
Kind code	A1
Filing date	Dec 14, 2016
Priority date	Nov 10, 2016
Publication date	May 10, 2018
Grant date	—

Abstract

An aeration control system and method for wastewater are provided. The aeration system, which is connected to an aeration device in an aeration basin, includes a plurality of water quality detectors, at least one pollutant estimate model, and a processing unit. The plurality of water quality detectors are configured to acquire a plurality of water quality data. The plurality of water quality data includes a pre-aeration water quality data and a post-aeration water quality data. The pollutant estimate model is configured to generate a pollutant data according to the pre-aeration water quality data. The processing unit is configured to generate an aeration quantity according to the pollutant data, the post-aeration water quality, and an effluent water quality setting, and transmitting the aeration quantity to the aeration device.

First claim

What is claimed is:

1 . An aeration control system for wastewater, which is connected to an aeration device in an aeration basin, comprising:
a plurality of water quality detectors configured to acquire a plurality of water quality data, and the plurality of water quality data including a pre-aeration water quality data and a post-aeration water quality data; at least one pollutant estimate model configured to generate a pollutant data according to the pre-aeration water quality data; and a processing unit configured to generate an aeration quantity according to the pollutant data, the post-aeration water quality and an effluent water quality setting, and transmitting the aeration quantity to the aeration device.

2 . The aeration control system according to claim 1 , wherein the plurality of water quality data are selected from the group consisting of amounts of dissolved oxygen (DO), oxidation-reduction potentials (ORP), electrical conductivities (EC), amounts of suspended solid (SS), potentials of hydrogen (pH) and combinations thereof.

3 . The aeration control system according to claim 1 , wherein the at least one pollutant estimate model is build by a training method according to a plurality of historical water quality data and/or the plurality of water quality data.

4 . The aeration control system according to claim 1 , wherein the aeration quantity is generated by the processing unit according to the pollutant data, the post-aeration water quality, the effluent water quality setting, and specifications of the aeration basin and the aeration device.

5 . The aeration control system according to claim 1 , wherein the aeration device is a blower.

6 . An aeration control method for wastewater, which is applied to control an aeration device in an aeration basin, comprising the steps of:
acquiring a plurality of water quality data by a plurality of water quality detector, and the plurality of water quality data including a pre-aeration water quality data and a post-aeration water quality data; generating a pollutant data by at least one pollutant estimate model according to the pre-aeration water quality data; and generating an aeration quantity by a processing unit according to the pollutant data, the post-aeration water quality and an effluent water quality setting, and transmitting the aeration quantity to the aeration device; and determining whether an error value between the post-aeration water quality and the effluent water quality setting is smaller than or equal to an allowance of error;
if yes, end all steps;
if no, replace or update the pollutant estimate model.

7 . The aeration control method according to claim 6 , wherein the plurality of water quality data are selected from the group consisting of amounts of dissolved oxygen (DO), oxidation-reduction potentials (ORP), electrical conductivities (EC), amounts of suspended solid (SS), potentials of hydrogen (pH) and combinations thereof.

8 . The aeration control method according to claim 6 , wherein the at least one pollutant estimate model is build by a training method according to a plurality of historical water quality data and/or the plurality of water quality data.

9 . The aeration control method according to claim 8 , wherein the training method includes following steps:
building the pollutant estimate model; comparing the plurality of historical water quality data and/or the plurality of water quality data by the pollutant estimate model; and determining whether an error value between the plurality of historical water quality data and/or the plurality of water quality data is smaller than or equal to a setting value;
if yes, confirm the pollutant estimate model;
if no, adjust a weight and a deviant, and repeat the step of building the pollutant estimate model.

10 . The aeration control method according to claim 6 , wherein the aeration quantity is generated by the processing unit according to the pollutant data, the post-aeration water quality, the effluent water quality setting, and specifications of the aeration basin and the aeration device.

Assignees

• Ind Tech Res Inst

Inventors

• Chung Hsin-Yi
• Chao Hao-Ting
• Chu Chen-Hua

Classifications

• C02F1/008 Primary

  Control or steering systems not provided for elsewhere in subclass C02F · CPC title

• C02F2209/10

  Solids, e.g. total solids [TS], total suspended solids [TSS] or volatile solids [VS] · CPC title

• C02F2209/05

  Conductivity or salinity · CPC title

• C02F2209/005

  Processes using a programmable logic controller [PLC] · CPC title

• C02F2209/04

  Oxidation reduction potential [ORP] · CPC title