For vector attraction reduction, the new sludge rules require a reduction in volatile solids across a digester process before land application. What percent reduction is specified?

For vector attraction reduction, the new sludge rules require a reduction in volatile solids across a digester process before land application. What percent reduction is specified?

• A. 38%
• B. 20%
• C. 50%
• D. 10%

Answer: (A)

Vector attraction reduction means making biosolids less appealing to pests and vectors by lowering the amount of organic material that can decompose and attract them. The rule requires that, before land application, the digestion process achieve at least a thirty-eight percent reduction in volatile solids. This level of stabilization helps reduce odors and the potential for flies or other vectors, improving safety and regulatory compliance. The other percentages listed do not meet the required threshold, so thirty-eight percent is the specified target.

Vector attraction reduction means making biosolids less appealing to pests and vectors by lowering the amount of organic material that can decompose and attract them. The rule requires that, before land application, the digestion process achieve at least a thirty-eight percent reduction in volatile solids. This level of stabilization helps reduce odors and the potential for flies or other vectors, improving safety and regulatory compliance. The other percentages listed do not meet the required threshold, so thirty-eight percent is the specified target.