Assertion: sewage's bacteria | /r/CapableOf | digest both the sewage sludge
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Source sentences:
text: In the presence of oxygen, bacteria digesting both the sewage sludge and the plant material generate heat to kill disease-causing microorganisms and parasites.:20 Maintenance of aerobic conditions with 10 to 15 percent oxygen requires bulking agents allowing air to circulate through the fine sludge solids.