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a visit to Washington, D.C.’s Blue Plains sewage treatment plant, Chen Xitong, mayor of Peking, looked over the hills of sludge.
“Do farmers come and get it with their trucks?” he asked, recognizing what would be a valuable commodity in China.
In the U.S., too, sludge has been spread for years on cropland. According to the Environmental Protection Agency, an estimated 400 towns in Illinois and 250 towns in Ohio alone apply sludge to the land.
Experience in the mid-West has shown farmers can derive financial benefits through land application. As an incentive, most municipalities will provide sludge to farmers at little or no cost. Thus, land spreading of good quality sludge can reduce
95.7%