Water & Decentralized Wastewater Knowledge Exchange Forum

One location – great exchange of ideas, information and help


4 Comments

Impact of antibacterial products

We have received a request for feedback from any facilities or operators that have first hand experience of the impact from triclosan, tricloban or other antibacterial / biocide products on their systems. Please cite references if possible? Thank you.

Advertisements


2 Comments

Synthetic Wastwater recipe. .

Hi ,

Can anyone suggest papers or journals for the preparation of synthetic waste water which will simulate aeration tank effluent. We are working on a lab scale experiment to modify and observe the working of secondary clarifier , for the same we need synthetic wastewater recipe which will simulate the aeration tank effluent .

Thanks

Neha


Leave a comment

Advanced Wastewater Microbiology Filamentous Bacteria Identification – Online class

largewwmb

Advanced Wastewater Microbiology Filamentous Bacteria Identification – Online class

Date: August 21st, 2014 – 11am – 1.30 pm (PT),  1 – 3.30 pm (CT) 2- 4.30 pm ET

Ryan Hennessy picturePresenter: CV Ryan Hennessy

Technical Service Specialist for Microbial Discovery Group located in Franklin, WI. Involved in wastewater microscopic analysis, ATP analysis, bio screening, and other laboratory analysis in addition to training, research, and presentations for clients and wastewater associations within the US and internationally.

Fee: $35 – payment can be made using any major credit card via PayPal
Pay Here.

fbTopic: applying microscopic findings for process control and troubleshooting.

Target audience: more experienced operators, superintendents, regulatory agencies, engineering/chemical companies

This event will utilize the Adobe Connect platform
PLEASE TEST YOUR CONNECTION: (Chrome and Firefox are the preferred web browsers to use. We have noted issues using Safari.)

Conduct a test to ensure your computer is set up with the appropriate tools to participate in an Adobe Connect Meeting. To do this, click on the Test Meeting Connection URL located here:

http://my.adobe.acrobat.com/common/help/en/support/meeting_test.htm

All WasteWater Education  Adobe events use VOIP for audio unless prior arrangements have been made for a telephone bridge.

This class has been approved for CEU Credit by the State of Wisconsin.


3 Comments

What Process are using to monitor your sludge inventory and why?

I personally prefer to use sludge age: Inventory in system/ inventory leaving system per day. If there is a high amount of inventory in the final clarifiers this should also be included in the system. If TSS lost to the effluent is significant this should  be included in addition to the mass amount of sludge wasted from the system.

While using sludge age, also track and monitor other things such as SVI, F/M ratio, MLSS concentration, and effluent performance. Every couple sludge cycles or more often if there is a lot of variability, an advanced microscopic evaluation evaluating floc structure, filament abundance, protozoa and metazoan, type of filamentous etc. is useful to see which direction things are going, and identify the cause for any changes in the above parameters. Knowing what the plant looks like under the scope during “good conditions” is very useful because it provides a great baseline for troubleshooting when and if the time comes.

best regards,
Ryan Hennessy