Abstract: A method may include providing a wellbore treatment fluid having a first microorganism count as a result of the presence of at least a plurality of microorganisms in the wellbore treatment fluid, providing a UV light treatment reservoir, providing a UV light source, placing the wellbore treatment fluid in the UV light treatment reservoir, and irradiating the wellbore treatment fluid with the UV light source so as to reduce the first microorganism count of the wellbore treatment fluid to a second microorganism count to form an irradiated wellbore treatment fluid.

Abstract: Of the methods provided herein, one includes a method comprising: providing a turbid treatment fluid having a first microorganism count; placing the turbid treatment fluid in a self-contained, road mobile UV light treatment manifold that comprises a UV light source; irradiating the turbid treatment fluid with the UV light source in the self-contained, road mobile UV light treatment manifold that comprises an attenuating agent so as to reduce the first microorganism count of the turbid treatment fluid to a second microorganism count to form an irradiated treatment fluid, wherein the second microorganism count is less than the first microorganism count; and placing the irradiated treatment fluid having the second microorganism count in a subterranean formation, a pipeline or a downstream refining process.