Depending upon the location, wetland ET may be very similar to lake evaporation (or about 80% of pan evaporation). Arid, windy areas produce higher ET rates in wetlands.
Zero discharge wetlands can be designed and operated successfully in regions where rainfall exceeds ET. Performance is...
Whether for stormwater or wastewater, the concept is being applied as a retrofit that provides increased water quality improvement through the various physical, chemical, and biological processes that occur in the wetlands. We just want to slow the water down to allow these processes to be most...
Greetings. I'm interested in reducing the natural infiltration rate of sandy soils from several feet per day to say 2 inches per day. The only idea we have come up with is to amend the sandy soils with bentonite at a very low ratio...perhaps only 1% bentonite by dry weight. Our thinking is that...
Treatment Wetlands, 2nd Edition by Kadlec and Wallace (2009) covers it all in terms of a wetland design reference. I know that there have been several successful pond to wetland conversions in the US for purposes of reducing effluent nutrient and TSS concentrations.
Have you considered converting one or more of the shallow ponds to a treatment wetland? You may be able to knock both the BOD and NH3 down and should also control TSS as long as it is properly vegetated and not allowed to run too deep.
I see the "-N" on there, but are you certain the results are being reported "as N"? If they are reporting "as NO3" then the "as N" concentration is more than 4 times lower (or about 400 mg/L). Regardless of whether the reporting units are correct, it is still a high loading and carbon is likely...
Wastewater treatment in lagoons is more likely to increase TSS than decrease. Algal solids leaving the lagoon system will be measured as TSS and at times can exceed the inflow TSS.
Thanks for the input so far. I'll attempt to clarify the question.
Consider the lake water (the water source) surface elevation as 0 feet (all other elevations will be expressed as + or - relative to the lake at 0). Top of levee elevation that I need to pump over is +21 feet (I can't trench...
I need to pump from a lake over a levee to another impoundment. The pump will be placed on top of the levee. Static head on suction side of pump is 23.5 ft. Length of suction line is about 250 ft. Discharge is about 300 ft from pump and elevation drops 10 ft from pump to point of discharge...
