Question

You run a large farm that is considering using sludge from wastewater treatment plants as fertilizer. You have been told that the sludge can increase the growth rate of your crops, and you know that using the sludge will prevent it from making its way into landfills. However, you have also heard that sludge can contain pollutants such as heavy metals and pathogens. What questions would you want to ask before deciding to use the sludge? Do you feel that the benefits outweigh the costs?

Answer 1

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