How to manage landfill leachate containing Arsenic?

Dear all, We have a landfill which is filled with sludge containing high amount of Arsenic (approximately 412,000 ppm). This sludge is the byproduct of a acid factory wastewater treatment plant...

16 October 2023 9,955 2 View

How to calculate particulate matter in g/s from ppm concentration?

Dear all; I need to calculate PM10 as g/second from it concentration in ppm for a stack. The PM10 concentration is 150 ppm. Q is 9 m3/s. Temperature is 120 C. Is there any formula to do...

03 September 2022 7,413 2 View

What are the possible causes of foam in water treatment plant effluent?

Dear all; Recently I have seen foam in water treatment plant (WTP) outlet. Also I have observed them simultaneously on the lake surface where the treated water of WTP entering to lake. What are...

22 July 2018 6,208 8 View

What methods could be used to clean up Algae bloom from Lake Surface?

Hi all;  Is there any way to clean up algae bloom using physical methods such as Sorbent Pads, Absorbent Kit and so on? Many thanks. Regards.

13 January 2016 8,539 10 View

Does ultrasonic waves affect the non-target organisms in shallow lakes?

Hi; Dear all I am searching about the adverse effects of the new technology called "Ultrasonic", which is used to control and eliminate the algae bloom in lakes. Does anyone have information or...

23 December 2015 3,880 1 View

How do I use fine clay for Eutroph lake?

Dear all;  Is there any instruction about using clay to cope with Microcystis (blue green algae) in lake?  Thanks.

15 October 2015 9,494 5 View

Are these layer related to Diatoms or dead Algae?

26 September 2015 196 14 View

How do I get Bathymetry data for CE-QUAL-W2 ?

Dear all, I want to know how can I make Bathymetry map in CE-QUAL-W2 model. Thanks in advance. J.Bayat.

08 September 2015 8,096 3 View

I have just found Jellyfish in an artificial lake. I want to know what problems they may cause in lake?

This picture shows the Jellyfish which I have found.

07 September 2015 6,026 16 View