Heat-activated persulfate oxidation process was investigated as the treatment of dinitrodiazophenol industrial wastewater to degrade refractory pollutants and improve biodegradability. By studying the effects of 4 factors and carrying out orthogonal tests and scale-up experiments, optimal treatment conditions (temperature 90 °C, reaction time 75 min, PS dosage 20.0 g L and initial pH ∼2.
View Article and Find Full Text PDFBackground: Ventricular fibrillation (VF) is one of the most serious complications of acute myocardial infarction, with a high mortality rate. There is a lack of value of rescue thrombolysis in ST-segment elevation myocardial infarction (STEMI) complicated by VF.
Objective: To examine the relationship between risk factors and mortality, and assess the value of rescue thrombolysis in STEMI complicated by VF.
Environ Toxicol Pharmacol
March 2014
Although Chinese cobra snakebite is the most common type of snake venenation in China, it still lacks a comprehensive and systematic description. Hence, we aimed to study Chinese cobra bite cases with particular attention to demography, epidemiology and clinical profile. In this study, a total of 292 cases of Chinese cobra snakebite, presenting between January 1, 2008 and December 31, 2012, were retrospectively reviewed.
View Article and Find Full Text PDFPoisoning by organophosphorus insecticides is a major global public health problem. Although atropine has been widely used to treat organophosphate (OP) poisoning, sometimes atropinization cannot be achieved, even with high doses of atropine. Hence, we aimed to assess the effect of anisodamine for organophosphorus poisoned patients for whom atropinization could not be achieved through high doses of atropine.
View Article and Find Full Text PDFHuan Jing Ke Xue
November 2012
The Anaerobic-semiaerobic Bioreactor Landfill (AN-SABL) has been devised combining an Anaerobic Bioreactor Landfill (ANBL) with a Semi-aerobic Aged Refuse Biofilter (SAARB) for reducing the investment and the running expense. It was a novel bioreactor landfill which could accelerate the stabilization of waste obviously. The evolution of leachate quantity and quality for the AN-SABL was studied in order to provide a theoretical basis for the management and treatment of leachate.
View Article and Find Full Text PDFA removing mechanism for organics and nitrogen using a semi-aerobic aged refuse biofilter (SAARB) was evaluated based on the space structure, the aged refuse conformation and characteristics, as well as the degradation theories of organic matter and nitrogen-based substances, which could provide a fundamental theory to more effectively treat organic matter and nitrogen-based pollutants in leachate. The experimental results indicated that the average removal rate of chemical oxygen demand and total nitrogen reached 96.61 and 95.
View Article and Find Full Text PDFBackground: Marie Unna hereditary hypotrichosis (MUHH) is an autosomal dominant disorder characterised by coarse, wiry, twisted hair developed in early childhood and subsequent progressive hair loss. MUHH is a genetically heterogeneous disorder. No gene in 1p21.
View Article and Find Full Text PDFHuan Jing Ke Xue
June 2012
A novel bioreactor landfill, the anaerobic-semiaerobic bioreactor landfill (AN-SABL), was devised by combining an anaerobic bioreactor landfill (ANBL) with a semi-aerobic aged refuse biofilter (SAARB). Meanwhile, relevant parameters such as gas production volume and rate, and gas constituents were investigated to provide a theoretical foundation for the collection, utilization and treatment of landfill gas. Results indicated that the gas production of the anaerobic units was inhibited in the AN-SABLs.
View Article and Find Full Text PDFWe developed a semi-aerobic aged refuse biofilter (SAARB) for leachate treatment and examined its advantages and disadvantages compared to previous aged refuse biofilters (ARBs). To assess its treatment capability, decontamination mechanisms and optimal performance parameters, a single-period experiment and L(9)(3(4)) orthogonal array design experiments were conducted on artificial leachate. The SAARB markedly enhanced the treatment capability and removal efficiency of organic matter and nitrogen pollutants due to the alternating aerobic-anoxic-anaerobic zones in situ.
View Article and Find Full Text PDFBased on the comparison between anaerobic, aerobic and semi-aerobic bioreactor landfill, the method to acceleration the stabilization process of waste in bioreactor landfill by sequential anaerobic and semi-aerobic operation mode was brought forward and put into practice in simulated experiment. When the operation mode was changed from anaerobic mode to semi-aerobic mode in the 710th day, the COD concentration of simulated bioreactor landfill column D1 (leachate recirculation once everyday) and D4 (leachate recirculation twice every week) was dropped from 705mg/L, 669mg/L to 135mg/L, 178 mg/L and the ammonia-N concentration was dropped from 650 mg/L, 877mg/L to undetectable level after 360 days. At the same time, the COD concentration of control column D2 and D3 was dropped from 435mg/L, 852mg/L to 295mg/L, 596mg/L and the ammonia-N concentration was dropped from 654 mg/L, 1107 mg/L to 469mg/L, 783mg/L.
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