Section Env-Wq 716.12 - Sludge Conditioning(a) Storage space shall be provided for concentrated conditioning agents sufficient to maintain an inventory capable of meeting the facility needs for maximum monthly production.(b) Storage and handling facilities shall be compatible with the material to be stored and shall comply with Env-Wq 708.06.(c) Equipment shall be provided to allow for proper and safe physical movement of the bulk material storage containers.(d) Facilities shall be provided to allow the wetting, mixing, and dilution of concentrated or dry conditioning agents and for aging, storage, and mixing of dilute material in sufficient volume for at least one day of sludge conditioning.(e) Positive displacement pumps with a variable feed rate shall be used to control the conditioning agent feed rate to the point of use.(f) Duplicate pumping systems shall be provided.(g) The conditioning agent pumping system shall be fitted with appropriate backpressure valves to assure delivery of the correct volume of conditioning agent without being influenced by the volume in the storage tank or the backpressure on the piping system.N.H. Code Admin. R. Env-Wq 716.12
Adopted byVolume XXXIV Number 46, Filed November 13, 2014, Proposed by #10693, Effective 10/15/2014, Expires10/15/2024.