Development of drinking water standards for perchlorate in the United States

Perchlorate, nitrate, and sulfate reduction in hydrogen-based membrane biofilm reactor: Model-based evaluation

“…Perchlorate (ClO 4 -) and nitrate (NO 3 -) are contaminants commonly present in surface water and groundwater. ClO 4 is a byproduct of the production of rocket fuels and fireworks [1,2] and can cause severe health problems through interfering with the thyroid hormone production [3]. The ClO 4 concentration in groundwater is typically below 100 µg L -1 but could reach 20 mg L -1 or more [4].…”

Application of a Re–Pd bimetallic catalyst for treatment of perchlorate in waste ion-exchange regenerant brine

“…Currently, ion-exchange (IX) is the most widely applied drinking water treatment technology for ClO 4 À (Srinivasan and Sorial, 2009). Full scale IX systems successfully treat diverse source waters, and are capable of meeting the stringent limits of the anticipated regulatory levels (e.g., low ppb) (Tikkanen, 2006;Kucharzyk et al, 2009). Although IX systems for perchlorate treatment are effective, they only serve to separate ClO 4 À from the contaminated source water, and further treatment or long-term sequestration of the resinsorbed contaminants is still needed.…”

Propylthiouracil, Perchlorate, and Thyroid-Stimulating Hormone Modulate High Concentrations of Iodide Instigated Mitochondrial Superoxide Production in the Thyroids of Metallothionein I/II Knockout Mice

“…KClO 4 protects against high concentrations of iodide-induced oxidative stress by not allowing iodide to enter the thyroid. Due to various indications of greater environmental distribution of KClO 4 in water, food, and other media, KClO 4 is under specific regulation [ 36 ]. To prevent goitrogenic effects of KClO 4 exposure among persons with insufficient iodine, a modest iodine dietary intake is recommended for those who consume KClO 4 in drinking water [ 37 ].…”