Feeding regime is one of the important parameters to consider when operating an anaerobic digestion (AD) since it can dictate which reactor configuration use and impacts stability performance sludge behavior over time. This study compared impact feeding strategy (continuous vs 15-min every 4 h) on a side-stream membrane bioreactor (AnMBR) changes in characteristics. Two 17.0 L AnMBRs were operated at 37 °C, treating dairy wastewater 1.0–5.0 gCOD/L⋅d organic loading rate, 40 d retention time,...

Treating protein-rich wastewater using cost-effective and simple-structured single-stage reactors presents several challenges. In this study, we applied an anaerobic sequencing batch reactor (AnSBR) to treat from a slaughterhouse. We focused on identifying the key factors influencing removal of chemical oxygen demand (COD) settling performance sludge. The AnSBR achieved maximum total COD 90%, protein degradation efficiency exceeding 80%, methane conversion over 70% at organic loading rates...

Abstract. The heating of drinking water in households contributes significantly to the emission greenhouse gases. As a utility aiming operate at climate neutral level by 2020, Waternet needs reduce its CO2 53 kton yr−1. To contribute this ambition, pilot project was carried out Uilenstede, Amstelveen, Netherlands, recover shower heat energy with exchanger from Dutch Solar Systems. An experimental setup built laboratory evaluate claimed efficiencies. recovery efficiency observed lab 61–64 %...

The accompanying mechanical behavior during the flow of ore-rock dispersion is an important factor leading to instability and failure orepass in ore storage section. It great significance accurately understand characteristics well wall section, drawing process by understanding internal transfer mechanism dispersion. Using discrete element method analyze characteristics, contact compactness, stress distribution force probability dispersion, it realizes quantitative characterization damage...

Protein-rich agro-industrial waste streams are high in organic load and represent a major environmental problem. Anaerobic digestion is an established technology to treat these streams; however, retardation of protein degradation frequently observed when carbohydrates present. This study investigated the mechanism by manipulating carbon source fed complex anaerobic microbiota linking reactor performance variation microbial community. Two acidification reactors were first acclimated either...

Based on the granule packing theory, grading vibrating filling experiments have been carried out for aluminum powder with different particle sizes. The effects of several factors dense ratio powder, such as craft, vibration time and parameter, discussed. distribution uniformity size fluidization performance dense-packing detected analyzed. results show that can be improved greatly by performing batch packing, stirring powder. initial improve obviously, but ascension is not obvious increasing...

Powder engine is one kind of new concept engines with multiple ignition capability and thrust modulation function. filling an important process the powder tests. The pneumatic experiments were carried out to investigate effects position collection box mass flow rate fluidization gas on stability performance filling. It’s found that large contributes filling, but its volume efficiency lowest, only 68.1%, it’s 93.9% when small. Compared vertical inlet end cap, tangential cylinder wall makes...

Objective To investigate the effects of glycine on expression HSP70 and TNF-α mRNA in liver tissue rats with traumatic shock explore protective mechanism a-gainst secondary injury after shock. Methods The model was established 120 Wistar were divided randomly into three groups: treatment group, group control group. At beginning resuscitation, injected 0.5 ml isotonic saline containing 100 mg/kg glycine, those only saline. groups killed at 3, 6, 12, 24 48 hours resuscitation respectively....

Abstract. The heating of drinking water in households contributes for a significant amount to the emission greenhouse gases. As utility aiming operate climate neutral by 2020, Waternet needs reduce its CO2 53 kton yr−1. To contribute this ambition, pilot project was carried out Uilenstede, Amstelveen, Netherlands, recover shower heat energy with exchanger from Dutch Solar Systems. An experimental set up built laboratory compare field conditions and lab conditions. recovery efficiency...

<title>Abstract</title> <bold>Background</bold>Presence of carbohydrates hampers protein degradation in anaerobic digesters. To understand this phenomenon, we used proteogenomics to identify the active protein-degraders presence low and high concentrations. Active metabolic pathways identified were investigated using proteomics with¹³C-protein substrates (protein stable isotope probing).<bold>Results</bold><italic>Acinetobacter</italic>was as main under both protein-fed...

In order to satisfy the needs of fast and convenient customization manufacturing scientific data sharing service, service process its key technologies were studied. First resource model oriented professional Then processes customization, from registration, definition, parsing, generating, analyzed. The parsing engine based on technology incubator generating was emphasized. Finally prototype system developed validated by an example.