scholarly journals The Degradation Characteristics of Highly Concentrated Organic Waste Water by the Sand Layer Method.

1997 ◽  
pp. 51-60
Author(s):  
Masatomo Nakayama ◽  
Keijiro Enari
Keyword(s):  
Waste Water ◽  
Organic Waste ◽  
Sand Layer ◽  
Layer Method

The degradation of highly concentrated organic wastewater by the sand layer method

1997 ◽  
Vol 35 (8) ◽  
pp. 223-229
Author(s):  
Masatomo Nakayama ◽  
Keijiro Enari
Keyword(s):  
Waste Water ◽  
Organic Waste ◽  
Lower Layer ◽  
Removal Rate ◽  
Column Experiment ◽  
Sand Layer ◽  
Biological Degradation ◽  
Sand Column ◽  
Methanogenic Activity ◽  
Seed Sludge

The osmotic action of highly concentrated organic waste water through soil was investigated by a column experiment. In this experiment, 50cm high sand-filled columns were used. The experiment included to estimate the toxic effects of mercury on the biological degradation of highly concentrated organic waste water. By adding seed sludge to the top of the sand column, 90% of the TOC was removed. The TOC was removed within the first 20-30cm of the sand layer. Though the removal rate of T-N was low, the T-P removal rate was over 86%. The effect of mercury on the removal of TOC, T-N, and T-P was not marked in either case. Both the acidogenic activity and the methanogenic activity were measured, and they showed higher values in the upper layer compared with the lower layer. The values of these activities were low in the column experiment with mercury.

Pharmaceuticals and Other Organic Waste Water Contaminants Within a Leachate Plume Downgradient of a Municipal Landfill

2004 ◽  
Vol 24 (2) ◽  
pp. 119-126 ◽  
Author(s):  
Kimberlee K. Barnes ◽  
Scott C. Christenson ◽  
Dana W. Kolpin ◽  
Michael J. Focazio ◽  
Edward T. Furlong ◽  
...  
Keyword(s):  
Waste Water ◽  
Organic Waste ◽  
Water Contaminants ◽  
Municipal Landfill ◽  
Leachate Plume

scholarly journals Photolytic AND Catalytic Destruction of Organic Waste Water Pollutants

2017 ◽  
Vol 50 ◽  
pp. 012039
Author(s):  
V F Torosyan ◽  
E S Torosyan ◽  
S O Kryuchkova ◽  
V E Gromov
Keyword(s):  
Waste Water ◽  
Organic Waste ◽  
Water Pollutants ◽  
Catalytic Destruction

scholarly journals Pembuatan Pupuk Organik Cair dari Limbah Pasar dengan Perbandingan Hasil Menggunakan Bioaktifator Air tahu dan EM4

2020 ◽  
Vol 1 (1) ◽  
pp. 15-23
Author(s):  
Lusi Anggraini ◽  
Vicky Anderesta Kuswoyo ◽  
Mutia Anissa Marsya
Keyword(s):  
Waste Water ◽  
Environmental Pollution ◽  
Organic Waste ◽  
Anaerobic Fermentation ◽  
Economic Value ◽  
Liquid Fertilizer

Liquid Fertilizers contain a lot of organic waste which has been decomposed and ready for consumption by plants. By utilizing the remaining vegetables, dried leaves and tofu, it is expected to increase the economic value of waste and reduce environmental pollution. Liquid fertilizer composted by anaerobic fermentation and carried out in a closed bucket (composter) with a comparison of bio-activator wastewater of tofu and EM4. The characterization of liquid fertilizer products was carried out by Nitrogen Analyzer, UV-vis spectroscopies, and AAS tools to test the levels of Nitrogen, Phosphor and Potassium respectively. The Result shown that the N total levels (0,38 %), Phosphor levels (0,06 %), and potassium levels (0,15%) of POC that made from waste water of tofu are higher than POCEM4.

scholarly journals Organic waste removal from pharmaceutical and textile effluents using composite adsorbent

2020 ◽  
Vol 55 (3) ◽  
pp. 197-206
Author(s):  
M Khatun ◽  
G Mohammad ◽  
Mir T Rahman ◽  
SE Kabir
Keyword(s):  
Waste Water ◽  
High Performance ◽  
Organic Waste ◽  
Water Systems ◽  
High Concentration ◽  
Total Peak Area ◽  
Composite Adsorbent ◽  
Similar Chemical ◽  
Uv Visible ◽  
Textile Industries

Pharmaceutical and textile industries widely use inorganic and organic components which undergo different chemical and biochemical reactions with the ground water systems. The removal of organic wastes from effluents was carried out using a composite adsorbent. Four different samples were collected from the Gonoshasthaya Antibiotic Limted, Gonoshasthaya Pharmaceuticals Limited, Pakiza Dyeing and Printing Industries Limited and Bangladesh Dyeing and Finishing Industries Limited. Synthetic effluents of four types were prepared maintaining a similar chemical average of the collected samples. All the samples contained a high concentration of TDS, TSS, TS, COD and BOD5. The composite adsorbent performed excellently for all the samples. The concentrations of the components contained in the waste water were analyzed by UV-Visible spectrophotometer and High Performance Liquid Chromatography (HPLC). After the treatment, the decreasing trend of the absorbance and total peak area indicated that the significant amount of effluent materials were removed. Bangladesh J. Sci. Ind. Res.55(3), 197-206, 2020

Generation of halogenated organic compounds in municipal waste water

1998 ◽  
Vol 37 (1) ◽  
pp. 303-309 ◽  
Author(s):  
Stefanie Schulz ◽  
Hermann H. Hahn
Keyword(s):  
Waste Water ◽  
Organic Compounds ◽  
Organic Waste ◽  
Inorganic Compounds ◽  
Municipal Waste ◽  
Halogenated Organic Compounds ◽  
Cleaning Agents ◽  
Long Time ◽  
Solid Compounds ◽  
Active Substances

Cleaning agents and disinfectants from housekeeping, hospitals and canteen kitchens are important sources of adsorbable halogenated organic compounds (AOX) in municipal waste water. They often contain inorganic compounds which are able to release activated chlorine. Together with organic waste water compounds the activated chlorine can generate halogenated organic compounds. Within the scope of this research project the generation of AOX through these active agents is compared. The effects of concentration, pH, time, temperature, presence of other oxidizing or reducing agents and synergetic effects are investigated and discussed. According to the results the potential of these active agents forming AOX is obvious. The AOX concentration of a municipal waste water increased by the factor of 13 after adding hypochlorite containing disinfectant in common concentration. Most AOX can be formed within 30 minutes. In sewage with high amount of solid compounds the AOX generation can take a long time (several days). The amount of AOX generated strongly depends on the nature and concentration of dissolved and solid organic compounds, the concentration of active substances, temperature, pH and the reaction time.

Research on the Stability of Pd-Based Multi-Component Supported Catalysts

2021 ◽  
Vol 871 ◽  
pp. 300-305
Author(s):  
Yong Li Zhang
Keyword(s):  
Waste Water ◽  
Organic Waste ◽  
Supported Catalysts ◽  
Catalytic Wet Oxidation ◽  
Characteristic Peak ◽  
Oxidation Treatment ◽  
Before And After ◽  
Ft Ir ◽  
The Stability

Based on SEM, FT-IR and XRD characterization, the catalyst Pd-Fe-Co-Ce/FSC (ratio 1:1:1:3) was calcined at a temperature of 550°C and a calcination time of 3 h. The catalyst is applied to the catalytic wet oxidation treatment of difficult-to-biodegradable organic waste-water. By the characterization of the catalyst before and after the reuse, it is verified that the SEM morphologis of the catalyst changed little, and the groups contained in the catalyst characterized by FT-IR hardly changed, and the XRD characteristic peaks did not change. From the SEM photos of the catalyst before and after use, the morphology of the catalyst does not change much, and the agglomerated support on the catalyst surface is slightly reduced; the absorption peaks of the FI-IR spectrum of the catalyst before and after use are not significantly different, indicating that the functional groups contained in the catalyst have not changed significantly; After using the catalyst, compared with before use, the characteristic peak shape of each characteristic diffraction did not change significantly. The results show that the catalyst Pd-Fe-Co-Ce/FSC (ratio 1:1:1:3) revealed a stable catalyst performance in the process of CWAO for the treatment of difficult-to-biodegradable organic waste-water.

Review of Treatment Methods for Fracturing Flowback Fluid

2014 ◽  
Vol 881-883 ◽  
pp. 659-662
Author(s):  
Fu Bao Li ◽  
Jun Jie Yang ◽  
Qin Li ◽  
Hao Wu
Keyword(s):  
Waste Water ◽  
Wastewater Treatment ◽  
Reaction Kinetics ◽  
Organic Waste ◽  
Reaction Rate ◽  
High Concentration ◽  
Fracturing Fluid ◽  
Treatment Methods ◽  
Organic Wastewater ◽  
At Home

Through analyzing and comparing the treatment of fracturing fluid flowback at home and abroad, it can be found that fluid derived organic waste water can be handled by micro electrolysis economically and efficiently. But there are also some shortages of traditional micro electrolysis. So this paper discusses a new micro-electrolysis technology, namely cavitation-impinging stream electrolysis technology which has several advantages in high concentration organic wastewater treatment. The technology can not only solve the problems that the passivation of process and the plugged equipment in the treatment of fracturing fluid flowback fluid by traditional micro electrolysis, but also can better promote the reaction from the reaction kinetics with the help of Coupling application about cavitation and impinging stream technology, so as to realize the purpose of improving the reaction rate and efficiency.

Sign in / Sign up

Export Citation Format

Share Document