RESUMEN
A study of using dual membrane technologies, microfiltration (MF) and reverse osmosis (RO), for reclaiming blowdown of the cooling tower was conducted at ZJK power plant, Hebei province, China. The study shows that the combined MF-RO system can effectively reduce water consumption in the power industry. The results indicate that MF process is capable of producing a filtrate suitable for RO treatment and achieving a silt density index (SDI) less than 2, turbidity of 0.2 NTU. The water quality of RO effluent is very good with an average conductivity of about 40 micros/cm and rejection of 98%. The product water is suitable for injection into the cooling tower to counteract with cooling water intrusion. After adopting this system, water-saving effectiveness as expressed in terms of cycles of concentration could be increased from 2.5-2.8 times to 5 times.
Asunto(s)
Conservación de los Recursos Naturales , Centrales Eléctricas , Eliminación de Residuos Líquidos/métodos , Purificación del Agua/métodos , Hidróxido de Aluminio/química , Carbonatos/análisis , Cloruros/análisis , Frío , Filtración , Membranas Artificiales , Metales/análisis , Nefelometría y Turbidimetría , Nitratos/análisis , Ósmosis , Presión , Sulfatos/análisis , Contaminantes Químicos del Agua/análisisRESUMEN
OBJECTIVE: The use of a real time continuous glucose monitoring system (RT-CGM) was studied as a behavior modification tool and the effectiveness of a RT-CGM in glucose control for patients with type 2 diabetes was determined. METHODS: We conducted a prospective, open-label, randomized, controlled clinical trial in 65 patients with poorly controlled type 2 diabetes (8.0
Asunto(s)
Glucemia/metabolismo , Diabetes Mellitus Tipo 2/sangre , Diabetes Mellitus Tipo 2/psicología , Hemoglobina Glucada/metabolismo , Adulto , Anciano , Anciano de 80 o más Años , Automonitorización de la Glucosa Sanguínea/métodos , Índice de Masa Corporal , Peso Corporal , Ingestión de Energía , Ejercicio Físico , Femenino , Humanos , Estilo de Vida , Masculino , Persona de Mediana Edad , Factores de Tiempo , Adulto JovenRESUMEN
Two cases of sarcoma complicated by pathologically confirmed myelophthisic anemia are presented. Although marrow involvement may occur in childhood rhabdomyosarcoma, complete marrow replacement in adult patients with sarcoma has not been previously described.