'''Biosolids''' is the name preferred by the lobby association for U.S. sewage treatment plants, the [[Water Environment Federation]] (WEF), for [[sewage sludge]].
The WEF, with the support of the [[Environment Environmental Protection Agency]], turned to the disposal of sewage sludge on land after the imposition of bans on ocean disposal and incineration.
However faced with increasing volumes and problems with landfills, WEF sought to persuade the EPA that instead of treating it as industrial waste it should be used as fertisilizer on farms. However, central to a makeover from toxic waste to beneficial fertilizer, was a name change from sewage sludge to biosolids.
In the real world, however, a rational person can reasonably conclude that sludge was the most likely cause of death, and a reasonable person would want to avoid eating food raised on sludge-fertilized land.
The PR campaign surrounding sludge is aimed at keeping people unaware that sludge is being used as fertilizer so they cannot make informed decisions about its risks. [[Milorganite ]] fertilizer, for example, is sold in all 50 states in bags describing it as a natural "organic fertilizer." Small print at the bottom of the bag states that it is "produced only by Milorganite Division--[[MMSD]]." Outside Milwaukee, very few people know that "MMSD" stands for "[[Milwaukee Metropolitan Sewerage District]]," and that they are spreading sewage sludge on their lawns and gardens.
==Case studies==