Dryer Survey

A large portion of respondents tended to be large utilities, averaging more than 50 dry tons per day (dtpd). The high percentage of large utilities probably explains the high use of rotary drum systems, which offer greater throughput capacity than the belt and paddle systems noted by other respondents.

Overall, the respondents indicated that their product is being sold primarily as a bulk fertilizer agent with the consumer providing transportation for the product. The value of the product covered a broad range, with approximately 50% of respondents indicating a value of $1 to $20/ton for the product, and 30% indicating they receive greater than $20/ton. Typically, a set price is used for the...

All but one respondent, presumably the one paying to dispose, indicated product aesthetics had a medium to high importance to dried product consumers. None indicated that a consumer had refused to accept product. Approximately 70% of respondents indicated that they maintain a high level of quality control, while the remainder rely on meeting the regulatory requirements as their means of quality...

What is your average annual biosolids production rate?

Resource