Nathan Howell

10 Questions 9 Answers 0 Followers

Questions related from Nathan Howell

How do I find/use the ADM1 program or code?

I've just discovered the existence of the ADM1 model for anaerobic digestion simulations through reading a review paper. When a paper recommends a model or compares several, I'm used to seeing...

29 January 2021 5,188 2 View

What are some good ways to measure above ground biomass from vegetables without killing the plant?

I've been looking around for some common relationships between above ground biomass of vegetable and legume crops (peas, tomatoes, beans, Swiss chard) and easily measurable growth...

15 July 2019 4,069 10 View

What is a good way to measure porosity of lighter than water porous media?

If you some type of carbonaceous and/or highly porous biomass based porous media, there is a good chance that it is going to float. So using standard porosity testing for soils is problematic....

25 July 2017 3,784 3 View

If you were given only 20 parameters to analyze in groundwater to generally assess its water quality, what would they be?

Longer question: "If you were given only 20 parameters to analyze in groundwater to generally assess its water quality, hydrologic connections, and usefulness what would they be? I have spent more...

10 July 2015 2,260 34 View

What recommendations do people have for using remotely sensed data to aid in urban hydrologic modeling?

A paper on the state of urban hydrologic modeling recently came out by Elga, Jan, and Okke. You can find it at http://dx.doi.org/10.1016/j.jhydrol.2015.06.028. In the paper the authors describe...

09 July 2015 511 3 View

What do you think about stacked rapid sand filtration's use in the developing world?

Some researchers at Cornell have developed stacked rapid sand filtration technology for use in the developing world. As I understand it, it is useful for doing what traditional rapid sand...

16 March 2015 9,759 7 View

What have others found useful to rapidly learn MIKE SHE for use in an engineering research project?

Hello everyone. I am initiating a project to model urban runoff flows into detention basins and then to also include groundwater recharge and evaporation from those basins. I live in a semi-arid...

09 January 2015 6,742 4 View

What are the best information sources that provide data and advice on the use of reclaimed municipal wastewater?

I feel like people know that wastewater effluent, if it is reclaimed, can be used for many things. But I don't hear a whole lot about specific uses other than trying to reconvert it to potable...

09 October 2014 8,111 7 View

What are some typical values that are seen for TOC & DOC concentrations for WWTP in influent, effluent, and activated sludge?

Some of my colleagues have a class in water quality that is being taught in our department, and the question arose because of some municipal wastewater treatment plant samples that are from the...

11 December 2012 3,993 6 View

What sediment concentration standards for dioxins/furans/TEQ to people find helpful and/or required?

I am often involved in issues of sediment contaminated with PCBs and PCDD/Fs that can be combined in a number of ways to generate a Toxic Equivalency (TEQ). Now I realize that toxicologists...

28 November 2012 5,348 6 View