This paper discusses the various treatment and
disposal alternatives for phosphoric acid clean-in-place (CIP) waste from microfiltration/ultrafiltration (MF/UF) utilities.
The waste streams generated in MF/UF membrane systems are a concern to utilities that do not have
available options for disposal. Typical waste streams from MF/UF utilities include spent backwash
(BW), maintenance wash (MW) and CIP waste streams. Since some water utilities do
not have access to a sewer line or are not near a wastewater facility, their only disposal option is
recycling or further treatment of these waste streams. Treatment and subsequent recycle of waste
streams generated by membrane filtration processes requires coordination between the regulatory
agency, the utility, and the design engineers. Equally important, potential impacts on primary treatment
process must be considered if recycling of waste is selected.
The CIP waste stream is generally the most problematic if disposal is unavailable, because of the high
concentration chemical stream. This paper discusses the nature of phosphoric acid CIP waste, while
considering volume and impacts of the treatment followed by recycling within the water treatment plant
(WTP) or disposal. In addition, an evaluation of experimental treatment and recycle of treated
phosphoric acid CIP waste is discussed. Includes reference, figure.
| Edition : | Vol. - No. |
| File Size : | 1
file
, 190 KB |
| Note : | This product is unavailable in Ukraine, Russia, Belarus |
| Number of Pages : | 6 |
| Published : | 11/01/2007 |
