Introduction
 |
| Zoom: Batch Sewage Treatment System |
In a batch tank, analyzers such as dissolved oxygen (DO) analyzers, oxidation-reduction potential (ORP) meters, and mixed liquor suspended solid (MLSS) analyzers are used. To reduce the maintenance frequency, measures must be taken to prevent dirt accumulation on the sensor. As the liquid level in a tank can vary greatly, great care should be taken when selecting the sensor installation position in a tank.
Expected Benefits
- Ensures stable, continuous measurement in heavily contaminated liquid
- Reduces operating costs
- Eliminates the need for manual cleaning
Process Overview
The batch treatment method is an intermittent sewage treatment method where a sequential process of sewage intake, aeration, settling, and drainage is performed repeatedly in a single reaction tank (batch tank). Characteristics of this method include:
- Stable treatment even if the sewage volume changes
- Compact facilities: requiring no settling tanks
- Removal of not only organic matter but also nitrogen and phosphorus
Field Data
Cleaning effectiveness testing of DO analyzer Output signal comparison between no cleaning and water jet cleaning
While an analyzer required maintenance approximately every two weeks when no cleaning was performed, a two-month maintenance interval was sufficient when water jet cleaning was performed.
Industries
-
Eau et Traitement des Eaux Usées
Yokogawa fournit des solutions de contrôle pour une production d'eau durable en développant une technologie plus économe en énergie, en aidant à réduire l'empreinte carbone des opérations et en construisant des produits solides qui protègent l'environnement des contaminants. Grâce à notre technologie de pointe et à notre vaste savoir-faire en matière d'applications, nous travaillons avec vous pour fournir des solutions durables pour l'eau qui stimulent votre activité et ajoutent une grande valeur tout au long du cycle de vie de l'usine. Notre technologie et nos produits améliorent la performance des usines et garantissent qu'elles peuvent fonctionner de manière compétitive sur les marchés de l'eau actuels, tout en réduisant leurs coûts d'exploitation.
Yokogawa prend en charge une large gamme d'applications de contrôle de l'eau dans les marchés de l'eau municipale et industrielle.
-
Traitement de Eaux Usées
Les stations d'épuration utilisent de nombreux moteurs, pompes, soufflantes, etc., et il est donc important de réduire leur consommation d'électricité afin de réduire les coûts d'exploitation. Yokogawa propose des solutions de contrôle optimales pour améliorer l'efficacité énergétique. -
Traitement des eaux
Yokogawa provides optimum solutions to improve the reliable operation of water treatment plants. These solutions include sophisticated technologies, unsurpassed product quality, and extensive application know-how throughout the lifecycle.
Les produits et solutions liés
-
MLSS Analyzers SS400G, SS300G
The SS400G, SS300G MLSS analyzers continuously and consistently measure the concentration of mixed liquor suspended solids (MLSS) in an activated-sludge treatment process found in sewage or industrial wastewater treatment facilities.
-
Multi Channel 4-Wire Analyzer FLXA402
The FLEXA™ series analyzers are modular-designed analyzers used for continuous online measurements in industrial installations. They offer single or multi-sensor measurement.
-
Dissolved Oxygen Sensors
Dissolved Oxygen (DO) electrodes and sensors are the sensing portions of a DO measurement. There are three common technologies for dissolved oxygen measurements: polographic, galvanic and optical. Various installation options including floating ball, retractable, flow thru, immersion, and direct insertion.