FILAMENTOUS FUNGI IN INDAH WATER KONSORTIUM (IWK) SEWAGE TREATMENT PLANT FOR BIOLOGICAL TREATMENT OF DOMESTIC WASTEWATER SLUDGE

2002 ◽  
Vol 37 (3) ◽  
pp. 309-320 ◽  
Author(s):  
A. Fakhru’l-Razi ◽  
M. Zahangir Alam ◽  
Azni Idris ◽  
Suraini Abd-Aziz ◽  
Abul H. Molla
Keyword(s):  
Filamentous Fungi ◽  
Biological Treatment ◽  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Domestic Wastewater ◽  
Wastewater Sludge

scholarly journals The pollution load of wastewater and the performance of the sewage treatment plant of Skhirat city

2020 ◽  
Vol 150 ◽  
pp. 02010
Author(s):  
Mehdi Bouhafa ◽  
Omar El Rhaouat ◽  
Mostapha Lakhlifi ◽  
Sakina Belhamidi ◽  
Azzedine El Midaoui ◽  
...  
Keyword(s):  
Biological Treatment ◽  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Oxygen Demand ◽  
Domestic Wastewater ◽  
P Value ◽  
Pollution Load ◽  
Pollutant Load ◽  
Level Of Significance

The Sewage Treatment Plant (STEP) based on Skhirat City receive on average an important volume of wastewater (about 66473 m3 with a flow of 2173.56 m3/day). The aim of this research is to evaluate the pollutant load of wastewater and the performances of the sewage treatment plant of Skhirat city in treating domestic wastewater. Sampling was carried out on the level of the entry of sewage treatment plant with a monthly rate. The analyses were carried at the laboratory with the cubic measure of wastewater received by the sewage treatment plant. The results show that the CODe/BOD5e ratio of 2.08, which makes it possible to confirm the normal state of the station in biological treatment since the ratio is lower than three. The results showed that the rate of the Chemical Oxygen Demand (COD), Biochemical Oxygen Demand (BOD5) and the Suspended Matter (SM) respectively it’s of the order 87,4%, 90,68% and 79,50%. Globally, the results of the investigation revealed by the unilateral test Student, that this difference between the entry and the exit of the station which significant by p-value calculated is lower than the level of significance alpha= 0,05.

scholarly journals Obtaining filamentous fungi and lipases from sewage treatment plant residue for fat degradation in anaerobic reactors

PeerJ ◽  
2018 ◽  
Vol 6 ◽  
pp. e5368 ◽  
Author(s):  
Anna Cristina P. Lima ◽  
Magali C. Cammarota ◽  
Melissa L.E. Gutarra
Keyword(s):  
Filamentous Fungi ◽  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Oxygen Demand ◽  
Basal Medium ◽  
Primary Treatment ◽  
Lipase Production ◽  
Plant Residue ◽  
Anaerobic Reactors

A residue from the primary treatment of a Wastewater Treatment Plant (WWTP) was used to isolate filamentous fungi with lipase production potential. Two of the 27 isolated fungi presented high hydrolysis index and were selected for lipase production by solid-state fermentation (SSF). The fermentations were conducted at 30 °C for 48 h, with moist air circulation, using 20% (w/w) of the residue mixture with a basal medium (agroindustrial residue—babassu cake), obtaining a solid enzymatic preparation (SEP) with lipase activity of 19 U/g with the fungus identified as Aspergillus terreus. Scum, collected in an anaerobic reactor operating in a WWTP, was hydrolyzed with SEP and subjected to anaerobic biodegradability tests at 30 °C. Different dilutions of crude (Control) or hydrolyzed scum in raw sewage were evaluated. The dilution of 5% (v/v) of hydrolyzed scum in raw sewage proved the most adequate, as it resulted in higher methane yield compared to the raw sewage (196 and 133 mL CH4/g CODadded, respectively), without increasing the chemical oxygen demand (COD) of the treated sewage (138 and 134 mg/L). The enzymatic hydrolysis of the scum, followed by dilution in the influent sewage, is technically feasible and increases methane production in anaerobic reactors.

scholarly journals Occurrence and Sources of Synthetic Musk Fragrances in the Sewage Treatment Plants and the Han River in Seoul, Korea

2020 ◽  
Author(s):  
Ju-Hee Hong ◽  
Jun-Yeon Lee ◽  
Hyun-Ju Ha ◽  
Jin-Hyo Lee ◽  
Seok-Ryul Oh ◽  
...  
Keyword(s):  
Biological Treatment ◽  
Treatment Process ◽  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Synthetic Musk ◽  
Han River ◽  
Treatment Processes ◽  
Musk Fragrances ◽  
Receiving Water

Levels of synthetic musk fragrances (SMFs) and various personal care products (PCPs) were measured in the Han River and its tributaries in Seoul, Korea. The most abundant SMF in all river and PCP samples was 4,6,6,7,8,8-hexamethyl-1,3,4,7-tetrahydrocyclopenta[g]isochromene (HHCB), followed by 1-(3,5,5,6,8,8-hexamethyl-6,7-dihydronaphthalen-2-yl)ethanone (AHTN), musk ketone (MK), and 1,1,2,3,3-pentamethyl-2,5,6,7-tetrahydroinden-4-one (DPMI). There was a significant correlation between the SMF concentration in the PCPs and the Han River samples. Moving from upstream to downstream in the Han River, the median SMF concentration was 6.756, 2.945, 0.304, and 0.141 μg/L in the sewage treatment plant (STP) influent, effluent, tributaries, and mainstream, respectively, implying that effective SMF removal was achieved during the sewage treatment process, followed by dilution in the receiving water. Four STPs using advanced biological treatment processes had removal efficiencies of 55.8%, 50.6%, 43.3% for HHCB, AHTN, and MK, respectively. The highest SMF concentrations in the tributaries were observed at locations close to the STPs. Our study confirmed that the main source of SMFs in the receiving water were sewage effluent containing untreated SMFs, which are largely originated from household PCPs, especially hair care products (e.g., shampoo) and perfumes.

scholarly journals Performance of wild-Serbian Ganoderma lucidum mycelium in treating synthetic sewage loading using batch bioreactor

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Zarimah Mohd Hanafiah ◽  
Wan Hanna Melini Wan Mohtar ◽  
Hassimi Abu Hasan ◽  
Henriette Stokbro Jensen ◽  
Anita Klaus ◽  
...  
Keyword(s):  
Ganoderma Lucidum ◽  
Treatment Time ◽  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Oxygen Demand ◽  
Domestic Wastewater ◽  
Ammonia Nitrogen ◽  
Organic Content ◽  
N Removal

Abstract The fluctuation of domestic wastewater characteristic inhibits the current conventional microbial-based treatment. The bioremediation fungi has received attention and reported to be an effective alternative to treat industrial wastewater. Similar efficient performance is envisaged for domestic wastewater whereby assessed performance of fungi for varying carbon-to-nitrogen ratios in domestic wastewater is crucial. Thus, the performance of pre-grown wild-Serbian Ganoderma lucidum mycelial pellets (GLMPs) was evaluated on four different synthetic domestic wastewaters under different conditions of initial pH (pH 4, 5, and 7) and chemical oxygen demand (COD) to nitrogen (COD/N) ratio of 3.6:1, 7.1:1, 14.2:1, and 17.8:1 (C3.6N1, C7.1N1, C14.2N1, and C17.8N1). The COD/N ratios with a constant concentration of ammonia–nitrogen (NH3–N) were chosen on the basis of the urban domestic wastewater characteristics sampled at the inlet basin of a sewage treatment plant (STP). The parameters of pH, COD, and NH3–N were measured periodically during the experiment. The wild-Serbian GLMPs efficiently removed the pollutants from the synthetic sewage. The COD/N ratio of C17.8N1 wastewater had the best COD and NH3–N removal, as compared to the lower COD/N ratio, and the shortest treatment time was obtained in an acidic environment at pH 4. The highest percentage for COD and NH3–N removal achieved was 96.0% and 93.2%, respectively. The results proved that the mycelium of GLMP has high potential in treating domestic wastewater, particularly at high organic content as a naturally sustainable bioremediation system.

Disinfection, Recontamination and Regrowth of Indicator Bacteria in a Wastewater Sludge Heat Treatment System

1988 ◽  
Vol 20 (11-12) ◽  
pp. 329-335
Author(s):  
Roger S. Fujioka ◽  
Wesley M. Hirano ◽  
Philip C. Loh
Keyword(s):  
Heat Treatment ◽  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Wastewater Sludge ◽  
Indicator Bacteria ◽  
Primary Sludge ◽  
Heat Treated ◽  
Sludge Cake ◽  
High Concentrations

The largest sewage treatment plant in Hawaii produces 25,400 kg/day of primary sludge that is heat-treated (190°C) under 330 psig for 3 0 min. Although this treatment should result in a sterilized sludge product, the final sludge cake often contains high concentrations of fecal-borne indicator bacteria. The heat-treatment process was shown to disinfect the sludge of indicator bacteria. However, post contamination of the heat-treated sludge by raw sludge and by chlorinated primary effluent and the regrowth of indicator bacteria in the sludge storage tanks resulted in the presence of indicator bacteria in the sludge cake.

Decentralisation of the Emscher Sewerage System - Planning of the Bottrop Biological Sewage Treatment Plant

1992 ◽  
Vol 25 (4-5) ◽  
pp. 51-58
Author(s):  
B. Teichgräber
Keyword(s):  
Biological Treatment ◽  
Wastewater Treatment Plants ◽  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Drainage System ◽  
Clean Water ◽  
System Planning ◽  
Sewerage System ◽  
Activated Sludge System

The Emschergenossenschaft plans to improve the Emscher drainage system by separating sewage and clean water. 6 or 7 subcatchment areas will be created and served by separate wastewater treatment plants. The Bottrop WWTP has been planned for 1.3 million population equivalents. It is scheduled to start operation in 1995 and its costs are estimated as totalling 820 million DM in total. Biological treatment will be effected by a low-loaded, single-stage activated sludge system with cascade denitrification and modified UCT process.

Biological Waste Water Rehabilitation of Sugar Factories by Algocoenosis Correction

2017 ◽  
Vol 21 (3) ◽  
pp. 16-20 ◽  
Author(s):  
V.V. Kul’nev ◽  
V.I. Stupin ◽  
A.A. Borzenkov
Keyword(s):  
Waste Water ◽  
Biological Treatment ◽  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Domestic Sewage ◽  
Total Water ◽  
Sewage Treatment Plants ◽  
Total Water Consumption

The article deals with theoretical and practical aspects of biological waste water rehabilitation of sugar factories by algocoenosis correction. This technology allows you to transfer domestic sewage treatment plant of filtration mode fields in the biological treatment ponds mode, significantly reducing the area of sewage treatment plants, thus improving the quality of treated waste water, which will, in turn, use them repeatedly reducing total water consumption.

scholarly journals Existence, Fate And Risk Assessment of Pharmaceuticals During Treatment of Domestic Wastewater: Mass Flow And Consumption Calculation

2021 ◽  
Author(s):  
Mohamed I. Badawy ◽  
Fatma A. El-Gohary ◽  
Mahmoud S. Abdel-Wahed ◽  
Tarek A. Gad-Allah ◽  
Mohamed Eid Ali
Keyword(s):  
Risk Assessment ◽  
High Performance ◽  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Domestic Wastewater ◽  
Average Concentration ◽  
Mass Load ◽  
The Individual ◽  
Final Effluent

Abstract In Egypt, pharmaceuticals consumption is dramatically increasing, owing to the population growth and the unrestricted sale manner. Therefore, the occurrence and fate of nine pharmaceutical compounds (PhCs) were scrutinized at the different stages of sewage treatment plant (STP) in Giza, Egypt. Levels of these PhCs were assessed in wastewater and sludge phases by a high-performance liquid chromatography coupled. Nine PhCs were detected in both wastewater and sludge. Average concentration of the total PhCs detected in influent, primary sedimentation effluent and final effluent were 227, 155 and 89 µg/L, respectively. The overall removal efficiency of the individual PhCs ranged from 18 % to 72 % removal. The occurrence trend revealed that biodegradation and sorption are the concurrently removal mechanisms of the studied PhCs. As well, the calculated total mass load of individual PhCs were in the range 328 – 42256, 152 – 26180, and 257 – 6625 g d-1 for influent, effluent and sludge. Meanwhile, the calculated range of personal mass load of the individual PhCs was 193 – 15274, 120 – 10864 and 34 - 265 µg d-1 Pe-1, for the influent, the final effluent and the sludge, respectively. The overall personal pharmaceutical consumption per day in West of Greater Cairo was estimated based on influent concentration of STP. Sulfamethoxazole, paracetamol and diclofenac were identified with the highest levels in the influent of STP, PSE and FE as well as in the dewatered sludge. Furthermore, the high concentrations of these compounds in the sludge confirms the sorption pathway removal of PhCs. Generally, the average daily and annual consumption per capita of the most dominant PhCs in wastewater; sulfamethazole, paracetamol and diclofenac are 60.09, 34.79, and 26.69 mg d-1 Pe-1 and 22, 12.52, and 12.52 g y-1 Pe-1, respectively. Moreover, risk assessment (RQ) for the detected PhCs in FE is greatly higher than the predicted non-effect concentration (PNEC). Conclusively, the FE of STP is considered a risky source for PhCs in adjacent surface water.

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