When the flow of simulated flue gas was 428m 3/h, the temperature of simulated flue gas was 65℃ and coke oven wastewater flow was 107L/h, the desulfurization rate was 85%.

The effect of GAC adsorption was eliminated before the experiment and aldehydic wastewater(initial concentration of COD_(Cr) was 33 494 mg/L) was treated under the conditions of microwave power 400 W,wastewater flow 6.4 mL/min,air flow 0.085 m~3/h and 45 g GAC.

在消除活性炭吸附作用后,在微波功率400 W、废水流量6.4mL/m in、空气流量0.085 m3/h和45 g GAC条件下对含醛废水(初始CODC r浓度为33 494m g/L)进行了处理.

The results also indicate that variations of wastewater flow rate and pollutant concentration are dominant comparing to the ozone dosage,and the low ozone concentration can improve the biodegradation of pollutants without negative effects on (microorganism.)

The results also indicate that variations of wastewater flow rate and pollutant concentration are dominant comparing to the ozone dosage,and the low ozone concentration can improve the biodegradation of pollutants without negative effects on (microorganism.)

Maintaining pH 7.55 and conductivity and 2050μs/cm, the removal rates of COD,NH3-N,color and muddy degree are 70%,71%,99.9 %and 99.9% respectively when the voltage of electrolysis is 60V ,the flowing of wastewater is 600L/H and the duration of electrolysis is 20min ,and discharge criterion of two grade can be reached.

for the BAF stage,the operational parameters were investigated along with the removal efficiency of COD under different hydraulic loading rates. The experimental results show that for the ABR,the removal efficiency is 83.5% for oil and 40.8% for COD; the ratio of BOD_5/COD of the effluent increases by 24.8% when the flow rate is 0.3 m~3/h.

Overall; based on the current wastewater flow rates; approximately 85% of the collected sewerage is treated in stabilization ponds, 10% in trickling filters, and 5% in activated sludge systems.

For the aforementioned diesel fuel concentrations and a wastewater flow rate of 1,200?L/day, the COD removal ranges between 61.9 and 84.1%.

Searching for strange attractor in wastewater flow

In this study, the complex behavior of a daily wastewater flow and evidence of deterministic nonlinear dynamics are investigated.

As a result, the daily wastewater flow shows no evidence of chaotic dynamics, which implies that stochastic models rather than deterministic chaos may be more appropriate for representing an investigated series.

For the aforementioned diesel fuel concentrations and a wastewater flow rate of 1,200?L/day, the COD removal ranges between 61.9 and 84.1%.

Of these 17 variables open to selection, only 6 variables, wastewater flow rate (Q), CN-, SS, MLSS, pH and COD are selected by the model to achieve the maximum accuracy of prediction, 0.94, with a total cost of 5,950 NT$.

Effects of major processvariables such as feed wastewater flow rate, COD concentration and loading rate, liquid phase aeration on the rate and extent ofCOD removal were investigated.

At a low wastewater flow rate of 30 mL/min, the corresponding optimum air flow rate was 150 mL/min, with an overall removal of 96%.

At a low wastewater flow rate of 30 mL/min, the corresponding optimum air flow rate was 150 mL/min, with an overall removal of 97%.

Effective retention leads to a coveted increase in the ratio of wastewater flux to reactor volume.

Raw wastewater flux and the circulating stream were mixed before they flew into the reactor.

The process of removing guaiacol from waste water has been studied in rotating disc columns with diameters of 73, 160 and 240mm. By investigating the effect of rotating speed, flow rates of waste water and emulsified liquid, amount of surfactant Span-80, it was found that the main factor affecting the removal of phenol is rotating speed, the optimal rotating speed decreasing with increase of column diameter. The rotating speed was correlated to the column diameter and to the minimal mass transfer unit height...

The process of removing guaiacol from waste water has been studied in rotating disc columns with diameters of 73, 160 and 240mm. By investigating the effect of rotating speed, flow rates of waste water and emulsified liquid, amount of surfactant Span-80, it was found that the main factor affecting the removal of phenol is rotating speed, the optimal rotating speed decreasing with increase of column diameter. The rotating speed was correlated to the column diameter and to the minimal mass transfer unit height for the three column diameters.

By means of rectangular pules response experiments with a I~- tracer,a description of the fluid flow in a laboratory-scale UASB reactor (about27.5 liters) used for treatment of lime straw black liquor,was derived.Itappeared that the sludge bed and the sludge blanket conld be described asperfectly mixed regions;the fluid flow in the three phase-separator couldbe described as plug flow.The bed and blanket regions were interconnectedby fluid flow and back mix streem.Based on this the fluid flow model wasset up.

Based on the fluid flow pattern,a kinetic model of a laboratory-scaleUASB reactor (about 27.5 liters) used for treatment of lime straw blackliquor,was set up.By means of sensitivity analysis,it was found that theflow Q,the influent substrate concentration S_0 (g COD/L),and μ_(max)had big influence on the reactor.From the model,relations between S_0 andeffluent substrate concentration S_(?)(g COD/L),relations between S_0 and subst-rate removing efficiency,relations between S_0 and substrate load L(g COD/L·d),were...

Based on the fluid flow pattern,a kinetic model of a laboratory-scaleUASB reactor (about 27.5 liters) used for treatment of lime straw blackliquor,was set up.By means of sensitivity analysis,it was found that theflow Q,the influent substrate concentration S_0 (g COD/L),and μ_(max)had big influence on the reactor.From the model,relations between S_0 andeffluent substrate concentration S_(?)(g COD/L),relations between S_0 and subst-rate removing efficiency,relations between S_0 and substrate load L(g COD/L·d),were discussed under different hydraulic retention time.It was foundthat the area of the reactor had no influence on the effluent substrateconcentration S_c,and the optimum height of the reactor was 4—6m.Therate of nobiodegradable and biodegradable substrate concentration was0.1122,the highest removing efficiency was 88.78,the higest load L(max)was 35 g COD/L·d.