Acid cleaner and process for disposal thereof

Details Acid cleaner and process for disposal thereof Acid cleaner and process for disposal thereof

1977-05-26

1978-09-26

Bashore, S. Leon

Cleaning and liquid contact with solids

Processes

For metallic, siliceous, or calcareous basework, including...

134 13, 134 41, B08B 308

Patent

active

041167139

ABSTRACT:
A thickened acid cleaner concentrate composition comprising an inorganic acid, e.g., hydrochloric, an organic acid, e.g., oxalic, a nonionic surfactant, an anionic surfactant, a flocculating agent such as iron or aluminum ion and water is used to clean vehicles such as railroad equipment. The waste water is then treated by increasing its pH to cause flocculation and separation to remove suspended solids and entrained BOD prior to discharge or re-use within the plant. The flocculating agent in the composition provides a proportional pretreatment of the waste to facilitate the final treatment and separation of waste in the used composition.

REFERENCES:
patent: 3800024 (1974-03-01), Forsell et al.
patent: 3832234 (1974-08-01), Otrhalek et al.
patent: 4044106 (1977-08-01), Fang

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