scholarly journals Kinetics and Performance of Biological Activated Carbon Reactor for Advanced Treatment of Textile Dye Wastewater

Processes ◽  
2022 ◽  
Vol 10 (1) ◽  
pp. 129
Author(s):  
Yen-Hui Lin ◽  
Bing-Han Ho
Keyword(s):  
Experimental Data ◽  
Activated Carbon ◽  
Removal Efficiency ◽  
Utilization Rate ◽  
Textile Dye ◽  
Yield Coefficient ◽  
Dye Wastewater ◽  
Monod Kinetics ◽  
Biological Activated Carbon ◽  
And Performance

The kinetics and performance of a biological activated carbon (BAC) reactor were evaluated to validate the proposed kinetic model. The Freundlich adsorption capacity (Ka) and adsorption intensity constants (n) obtained from the batch experiments were 1.023 ± 0.134 (mg/g) (L/mg)1/n and 2.036 ± 0.785, respectively. The effective diffusivity (Ds) of the substrate within the activated carbon was determined by comparing the adsorption model value with the experimental data to find the best fit value (4.3 × 10–4 cm2/d). The batch tests revealed that the yield coefficient (Y) was 0.18 mg VSS/mg COD. Monod and Haldane kinetics were applied to fit the experimental data and determine the biokinetic constants, such as the maximum specific utilization rate (k), half-saturation constant (KS), inhibition constant (Ki), and biomass death rate coefficient (kd). The results revealed that the Haldane kinetics fit the experimental data better than the Monod kinetics. The values of k, KS, Ki, and kdwere 3.52 mg COD/mg VSS-d, 71.7 mg COD/L, 81.63 mg COD/L, and 4.9 × 10−3 1/d, respectively. The BAC reactor had a high COD removal efficiency of 94.45% at a steady state. The average influent color was found to be 62 ± 22 ADMI color units, and the color removal efficiency was 73‒100% (average 92.3 ± 10.2%). The removal efficiency for ammonium was 73.9 ± 24.4%, while the residual concentration of ammonium in the effluent was 1.91 ± 2.04 mg/L. The effluent quality from the BAC reactor could meet the discharge standard and satisfy the reuse requirements of textile dye wastewater.

Application of biological activated carbon anaerobic reactor for treatment of hazardous chemicals

2006 ◽  
Vol 53 (11) ◽  
pp. 251-260 ◽  
Author(s):  
H. Tsuno ◽  
M. Kawamura ◽  
T. Oya
Keyword(s):  
Experimental Data ◽  
Activated Carbon ◽  
Organic Compounds ◽  
Adsorptive Capacity ◽  
Biological Degradation ◽  
Hazardous Chemicals ◽  
High Concentration ◽  
Expanded Bed ◽  
Biological Activated Carbon ◽  
Anaerobic Reactor

An expanded-bed anaerobic reactor with granular activated carbon (GAC) medium has been developed to treat wastewaters that contain a high concentration of inhibitory and/or refractory organic compounds as well as readily degradable organic compounds. The process is characterised by a combination of two removal mechanisms; adsorption on GAC and biological degradation by microorganisms grown on GAC. Applicability of the reactor to treatment of phenol, chloroacetaldehyde (CAA), pentachlorophenol (PCP) and tetrachloroethylene (PCE) was discussed based on experimental data. All chemicals focused on here were removed well and stably at a removal efficiency of more than 98% even during starting operation and shock load operation. Chemicals in influent that exceeded biological degradation capacity was initially adsorbed on GAC and then gradually degraded, and hence the adsorptive capacity of GAC was regenerated biologically. These results proved that a biological activated carbon anaerobic reactor was effective for treatment of wastewater containing hazardous chemicals, especially for strongly absorbable chemicals, as well as readily degradable organic compounds at high concentration.

Investigation of geosmin removal efficiency by microorganism isolated from biological activated carbon

2015 ◽  
Vol 29 (1) ◽  
pp. 47-55 ◽  
Author(s):  
Dawoon Baek ◽  
◽  
Jaewon Lim ◽  
Yoonjung Cho ◽  
Yong-Tae Ahn ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Removal Efficiency ◽  
Biological Activated Carbon

scholarly journals Effect of operating parameters on dye wastewater treatment using Prosopis cineraria and kinetic modeling

2019 ◽  
Vol 25 (5) ◽  
pp. 788-793 ◽  
Author(s):  
Rajamohan Natarajan ◽  
Rajasimman Manivasagan
Keyword(s):  
Removal Efficiency ◽  
Effluent Treatment ◽  
Potassium Oxide ◽  
Textile Dye ◽  
Dye Wastewater ◽  
Order Model ◽  
Prosopis Cineraria ◽  
Operating Variables ◽  
Textile Dye Effluent ◽  
Pseudo Second Order

Textile dye effluent treatment was investigated using a novel biosorbent synthesized from Prosopis cineraria. The influence of operating variables, namely initial COD of the effluent (352-1,303 mg/L) and adsorbent dosage (0.25-4.0 g/L) on the removal efficiency was studied. The results of the biosorption experiments indicated that the equilibrium COD removal efficiency attained was 68% and COD uptake achieved was 90.52 mg/g at an optimal sorbent dose (2.0 g/L). Pseudo second order model fitted well to the experimental data and the rate constant was estimated as 0.098 x 10<sup>-5</sup> g /(mg min) .Chemisorption was identified as the removal mechanism involved. Power function model represented the kinetic data in selected range of COD and kinetic constants were estimated. XRF analysis of the biosorbent confirmed the presence of potassium oxide and calcium oxide as the two major components.

scholarly journals The Treatment of Bordeaux S Dye Wastewater by Biological Activated Carbon.

1995 ◽  
Vol 18 (1) ◽  
pp. 29-35 ◽  
Author(s):  
Jian-guo LI ◽  
Toyokazu YOKOMAKU ◽  
Yasushi TAKEUCHI
Keyword(s):  
Activated Carbon ◽  
Dye Wastewater ◽  
Biological Activated Carbon

The Combination Process of Ozone/Ultraviolet/Biological Activated Carbon Filter for Treatment of Huaihe Micro-Polluted Water

2013 ◽  
Vol 295-298 ◽  
pp. 1384-1388 ◽  
Author(s):  
Dao Ji Wu ◽  
Xiao Xiang Cheng ◽  
Xue Dong Zhai ◽  
Yan Jie Wang
Keyword(s):  
Activated Carbon ◽  
Removal Efficiency ◽  
Pilot Scale ◽  
Polluted Water ◽  
Biological Activated Carbon ◽  
Combination Process ◽  
Activated Carbon Filter ◽  
Scale Test ◽  
Biological Activated Carbon Filter ◽  
Uv Oxidation

Aim at experimenting the micro-polluted characteristic of Huaihe River water, a pilot-scale test by the combination process of ozone/ultraviolet (UV) /biological activated carbon (BAC) filter for advanced treatment of drinking water was applied. The removal efficiency of general pollution indexes by combined process with different ozone dosages (1.0~3.0 mg/L) was investigated. Along with the increase of ozone dosage, the removal efficiency of CODMn and UV254 generally increased in ozone/UV oxidation process; The removal effect of NO2--N by ozone/UV oxidation was obvious; The removal of turbidity and NH3-N was mainly in BAC filter phase; When the ozone dosage was 2.0~2.5 mg/L, the general pollution indexes had gotten satisfying results, thus it was not necessary to increase the ozone dosage.

Biodegradation of acid red 3BN dye in sequential batch reactor: parameters and kinetics studies

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Vijay Kumar ◽  
Akhilesh Khapre ◽  
Chandrakant Thakur ◽  
Prabir Ghosh ◽  
Parmesh Kumar Chaudhari
Keyword(s):  
Batch Reactor ◽  
Oxygen Demand ◽  
Utilization Rate ◽  
Growth Rate Constant ◽  
Yield Coefficient ◽  
Monod Kinetics ◽  
Sequential Batch Reactor ◽  
Cod Reduction ◽  
Fill Volume ◽  
Dye Reduction

Abstract Textile and dye industries generate wastewater which is considered as highly polluted and carcinogenic. Due to this, treatment of wastewater is required earlier to discharge or recycle. In the present studies, treatment of dye bearing water (DBW) has been explored. The treatment was performed using activated sludge (mixed culture) for aerobic process in sequential batch reactor (SBR). The fill volume (V F) and fill time (t F) variation in the treatment of DBW was taken place. The initial value of dye concentration, chemical oxygen demand (COD), sludge, and hydraulic retention time (HRT) were found to play important role in the treatment. At optimum condition (HRT = 2.5 d), the 86.84% COD reduction of 190 mg/L COD, and 92.33% dye reduction of 339 mg/L dye were achieved. These values are equal to overall 94.85% dye reduction of 500 mg/L, and 93.15% COD reduction of 380 mg/L. As a result, 500 mg/L dye was reduced to 26 mg/L, and 380 mg/L COD was reduced to 25 mg/L. The biodegradation fitted to Monod kinetics, for which kinetics parameter values of specific growth rate constant of biomass µ = 0.0047 h−1, yield coefficient (Y) = 1.059, and substrate utilization rate (q) = 0.0044 h−1 were evaluated at HRT = 2.5 d. The results show, this process can be applied to treat Acid Red 3BN Dye Water (AR3BNDW).

Melia azedarach Activated Carbon and its novel TiO2 Nanocomposite for Chemisorption and Photodecoloration of Reactive Orange 16: Isotherm and Kinetic Modeling

2020 ◽  
Vol 17 (1) ◽  
pp. 107-119
Author(s):  
Jehanzeb A. Shah ◽  
Tayyab Ashfaq ◽  
Muhammad S. Khan ◽  
Nadia Riaz ◽  
Khizar H. Shah ◽  
...  
Keyword(s):  
Experimental Data ◽  
Activated Carbon ◽  
Batch Reactor ◽  
Dye Adsorption ◽  
Optimal Solution ◽  
Melia Azedarach ◽  
Textile Dye ◽  
Order Kinetic ◽  
Reactive Orange 16 ◽  
Reactive Orange

Background: Bulk generated textile wastewater loaded with dyes is posing a stern threat to aquatic health, especially when dumped without prior treatment. Lignocellulosic waste based activated carbon (AC) and Titania (TiO2) suspension can constitute the emerging technological solution. Objectives: Best lignocellulosic precursor biomass, Melia azedarach (Darek sawdust - DSD), was selected for ortho-phosphoric acid impregnated AC production and novel AC-DSD-TiO2 nanocomposite was developed. AC-DSD and AC-DSD-TiO2 nanocomposites were employed for reactive orange 16 (RO16) dye adsorption in batch and decoloration in photocatalytic reactors, respectively. Methods: Materials were characterized by Scanning electron microscope (SEM), energy dispersion X-ray (EDX) spectroscopy and Fourier transform infrared spectroscopy (FTIR). For AC-DSD production, the raw powdered biomass of DSD impregnated (value = 2) with H3PO4 at room temperature and after shaking, was placed in a muffle furnace at 100°C for 12 h in glass tubes and subsequently carbonized at a high temperature of 400°C for 30 min. Batch reactor parameters for the ACDSD- RO16 system were optimized as a function of contact time, adsorbent dose, temperature, initial dye concentration and pH. For AC-DSD-TiO2 nanocomposite synthesis, AC-DSD and TiO2 paste was dried in the furnace at 90°C and calcined at 300°C and stored in a desiccator. Results: AC-DSD exhibited RO16 adsorption capacity of 92.84 mg/g. The experimental data were best described by Langmuir and Dubinin-Radushkevich isotherms with high R2 of 0.9995 and 0.9895 and closeness of predicted adsorption capacities of 94.15 and 88.58 mg/g respectively. This determines the chemisorption nature for RO16 adsorption onto AC-DSD. The experimental data was well explained by the pseudo-second order kinetic model. Thermodynamic parameters also suggest the endothermic, chemisorption and spontaneous adsorption reaction. Photocatalytic studies of novel AC-DSD-TiO2 revealed the higher Kc = 0.1833 value over Kad= 0.0572. Conclusions: Melia azedarach AC-DSD and its novel AC-DSD-TiO2 nanocomposite prove that these materials could provide an optimal solution for treating textile dye solutions effectively as the good adsorbent and photocatalyst.

The Removal of Color from Fuchsin Basic Dye Wastewater Using Activated Carbon

2011 ◽  
Vol 356-360 ◽  
pp. 2616-2619
Author(s):  
Li Yi Ye ◽  
Xiao Xuan Zhang ◽  
Ying Wu Yin ◽  
Song Tu ◽  
Yong Sha
Keyword(s):  
Activated Carbon ◽  
Removal Efficiency ◽  
Adsorption Process ◽  
Color Removal ◽  
Dye Wastewater ◽  
Initial Concentration ◽  
Basic Dye ◽  
Simulated Wastewater

The performance of activated carbon (AC) adsorption process for the treatment of a simulated wastewater of fuchsin basic dye was investigated. The experiment revealed that under the optimum adsorption conditions (initial concentration of wastewater 250 mg L-1of dye, temperature 25 °C and AC dosage 4 g L-1), the color removal efficiency was 98% after 360 min of adsorption. As for the further use of AC, the saturated AC was regenerated by heated 20 min at 600 °C in the atmosphere of N2. Efficiency of regeneration was 99% and the regeneration loss was less than 5%. It indicated that AC was effective in the decolorization of dye wastewater.

scholarly journals Analisis Pengaruh Waktu Aktivasi dan Adsorpsi dalam Pemanfaatan Karbon Aktif dari Serutan Kayu menjadi Adsorben Limbah Cair

2019 ◽  
Vol 3 (1) ◽  
Author(s):  
Vibianti Dwi Pratiwi ◽  
Netty Kamal ◽  
Suparman Juhanda
Keyword(s):  
Activated Carbon ◽  
Liquid Waste ◽  
Preliminary Test ◽  
Textile Dye ◽  
Dye Wastewater ◽  
Activation Time ◽  
Carbon Chains ◽  
Wood Shavings ◽  
Wood Utilization

ABSTRAKIndustri pemanfaatan kayu cukup sering ditemukan di Indonesia, namun limbah yang dihasilkan tidak diolah dan hanya dibuang ke lingkungan. Limbah serutan kayu yang mengandung rantai karbon dapat dimanfaatkan menjadi karbon aktif. Pengaruh kualitas karbon aktif dari serutan kayu ini diuji berdasarkan waktu aktivasi dan daya adsorpsi limbah cair. Karbon aktif dibuat melalui pirolisis hingga mencapai suhu 5000C dengan ukuran 100-150 mesh dan diaktivasi dengan H3PO4 10% selama 6 jam, 12 jam, dan 18 jam. Karbon aktif yang dihasilkan digunakan sebagai adsorben dan diujikan pada limbah cair zat warna tekstil Sumikaron Yellow Brown S-2RL. Adsorpsi dilakukan dengan variasi waktu 1 jam, 2 jam dan 3 jam. Selanjutnya larutan zat warna yang telah dijerap oleh karbon aktif dianalisa menggunakan spektrofotometer dengan panjang gelombang 480nm. Berdasarkan absorbansi atau konsentrasi (%) pengurangan warna yang dihitung menggunakan anova dengan software Minitab 17, pengaruh yang lebih signifikan dalam pemanfaatan karbon aktif dari serutan kayu yaitu pada waktu aktivasi 12 jam dan waktu adsorpsi 3 jam. Karbon aktif dari limbah serutan kayu mampu mengurangi limbah cair zat warna sebesar 98,2519%. Hasil uji pendahuluan dengan menghitung bilangan iod dari adsorben karbon aktif yang telah diaktivasi selama 12 jam menjadi kondisi terbaik dengan menjerap iod sebanyak 144,8961 mg/g.Kata Kunci: limbah cair, karbon aktif, serutan kayu, MinitabABSTRACTThe wood utilization industry is quite often found in Indonesia, but the waste produced is not processed and is only disposed of into the environment. Wood shavings containing carbon chains can be used as activated carbon. The effect of the quality of activated carbon from wood shavings was tested based on the activation time and adsorption liquid waste’s capacity. Activated carbon is made through pyrolysis to reach a temperature of 5000C with a size of 100-150 mesh and activated with 10% H3PO4 for 6 hours, 12 hours, and 18 hours. The activated carbon produced was used as an adsorbent and tested on the liquid waste of textile dye Sumikaron Yellow Brown S-2RL. Adsorption is carried out with variations of 1 hour, 2 hours and 3 hours. Furthermore, the dye solution that has been absorbed by activated carbon is analyzed using a spectrophotometer with a wavelength of 480nm. Based on the absorbance or concentration (%) of color reduction calculated using anova with Minitab 17 software, a more significant effect on the utilization of activated carbon from wood shavings is the activation time of 12 hours and the adsorption time of 3 hours. Activated carbon from wood shavings waste is able to reduce dye wastewater by 98.2519%. The results of the preliminary test by calculating iodine number from the adsorbent of activated carbon which has been activated for 12 hours are the best conditions by absorbing iodine is 144.8961 mg/g.Keywords: liquid waste, activated carbon, wood shavings, Minitab

Sign in / Sign up

Export Citation Format

Share Document