The fouled membrane from the A/O-MBR system was cleaned effectively using NaOH and a 30h soak time.
CONCLUSION: This study suggests that it is technically feasible to use the A/O-MBR for the treatment of digestate from a cow manure AD system, and can provide an environmentally acceptable way for the application of wet-AD in animal manure treatment.
(C) 2010 Society of Chemical Industry”
“OBJECTIVE: To estimate whether first-trimester exposure to nitrofurantoin is associated with increased malformation rates and, secondarily, to estimate whether exposure to nitrofurantoin is associated with increased rates of negative pregnancy outcomes and perinatal complications.
METHODS: We conducted a population-based
cohort study using the Norwegian Prescription Database linked to data on all live births, stillbirths, and induced abortions after 12 weeks see more Selleckchem PCI-34051 of gestation from The Medical Birth Registry of Norway. The study population consisted of 180,120 pregnancies in 2004-2008. The pregnancy outcomes of women who were dispensed nitrofurantoin during pregnancy were compared with the outcomes of women who were dispensed pivmecillinam (disease comparison group) and unexposed women.
RESULTS: In all, 5,794 (3.2%) filled prescriptions for nitrofurantoin during pregnancy, 1,334 women (0.7%) in the first trimester and 979 women (0.5%) in the last 4 weeks of pregnancy. Dispensing nitrofurantoin during the first trimester was not associated with increased risk of major malformations (31 of 1,334 [2.3%]) compared with disease controls (162 of 5,800 [2.8%], odds ratio [OR] 0.79, 95% confidence interval [CI] 0.51-1.23).
No increased risk for secondary adverse pregnancy outcomes was observed when compared with the disease comparison group. Dispensing nitrofurantoin the last 30 days before delivery was associated with increased risk of neonatal jaundice (103 of 959 [10.8%]) compared with unexposed women (10,336 of 127,507 [8.1%], OR 1.31, 95% CI 1.02-1.70).
CONCLUSION: The results from this large, population-based study suggest that the teratogenic potential of nitrofurantoin is low. (Obstet Gynecol 2013;121:306-13) DOI: http://10.1097/AOG.0b013e31827c5f88″
“BACKGROUND: This study was conducted to investigate the feasibility Pexidartinib in vitro and performance of nitrogen removal through the complete autotrophic nitrogen removal over nitrite (CANON) process for saline wastewater in a continuous reactor, and to characterize microorganisms in the sludge from the reactor using DNA-based techniques.
RESULTS: The nitrogen removal experiment in the reactor was operated over five phases for 286 days treating a synthetic sewage of 1.2% salinity at 21-25 degrees C. At dissolved oxygen (DO) concentrations of 0.5-1.0mg L(-1) and in the presence of glucose, NO(2)(-) was accumulated, indicating the activity of ammonia-oxidizing bacteria (AOB). At DO concentration of 0.