UNDERSTANDING THE WASTEWATER TREATMENT PLANT IS THE KEY TO CO-DISPOSAL OF WATER TREATMENT PLANT RESIDUALS

2003 ◽  
Vol 2003 (1) ◽  
pp. 1564-1575
Author(s):  
Christine deBarbadillo ◽  
Edmund Kobylinski
Keyword(s):  
Wastewater Treatment ◽  
Water Treatment ◽  
Wastewater Treatment Plant ◽  
Treatment Plant ◽  
Water Treatment Plant

scholarly journals Reabilitation of a wastewater treatment plant – possible environment impact

2017 ◽  
Vol 19 (1) ◽  
pp. 65-78
Author(s):  
Mădălina Stănescu ◽  
Constantin Buta ◽  
Geanina Mihai
Keyword(s):  
Waste Water ◽  
Wastewater Treatment ◽  
Water Treatment ◽  
Wastewater Treatment Plant ◽  
Waste Water Treatment ◽  
Treatment Plant ◽  
Water Treatment Plant ◽  
Waste Water Treatment Plant ◽  
Environment Impact ◽  
Operational Phase

Abstract Romania, has declared, by the Governmental Decision nr.352/2005, all its territory as a sensitive area. This implies that, for all urban agglomerations larger than 10.000 population equivalent waste water treatment plants (WWTP) with nutrient removal must be built or upgraded. This paper presents the results regarding the possible environmental impacts expected from the project for construction of waste water treatment plant in the City of Vaslui, with main focus on surface water. This research study includes assessment methodology, project description regarding the rehabilitation and extension of the Vaslui waste water treatment plant, data related to water resources, impact assessment on water and appropriate mitigation measures. The assessment of the impacts has been performed for the construction and operational phase of the wastewater treatment plant. The construction phase was subdivided into several phases, while in the operational phase the impacts are analyzed following the line for treatment of the wastewater and effluent production, the line for sludge production and drying process, sludge disposal in safety conditions considering the provisions of 86/278/EEC Directive and the line for biogas utilization.

scholarly journals Magnetic water treatment in a wastewater treatment plant: Part I - sorption and magnetic particles

2021 ◽  
Vol 281 ◽  
pp. 111872
Author(s):  
Teresa Castelo-Grande ◽  
Paulo A. Augusto ◽  
Javier Rico ◽  
Jorge Marcos ◽  
Roberto Iglesias ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Water Treatment ◽  
Wastewater Treatment Plant ◽  
Magnetic Particles ◽  
Treatment Plant ◽  
Plant Part ◽  
Magnetic Water

Recycling of water treatment sludges in municipal wastewater treatment plants – a practical example

2008 ◽  
Vol 3 (1) ◽  
Author(s):  
K. Klinksieg ◽  
T. Dockhorn ◽  
N. Dichtl
Keyword(s):  
Wastewater Treatment ◽  
Water Treatment ◽  
Wastewater Treatment Plant ◽  
Iron Hydroxide ◽  
Settling Tank ◽  
Treatment Plant ◽  
Full Scale ◽  
Aeration Tank ◽  
Second Phase ◽  
Precipitation Efficiency

Full-scale and lab-scale research experiments were conducted to determine the phosphorous precipitation efficiency of iron hydroxide sludge from drinking water treatment. During full-scale investigations at a wastewater treatment plant, ferric sludge was added to the inflow of the primary settling tank in a first experimental phase and to the inflow of the aeration tank in a second phase. In the outflow of the mechanical stage and in the outflow of the biological stage, a reduction of the PO4-P concentrations could be observed. The concentration of COD, the SVI and the filament abundance were not changed significantly by adding the ferric sludge to the wastewater treatment plant. In lab tests, improved precipitation efficiency of the ferric sludge could be achieved by using anaerobic conditions and acid pulping. The research showed that the wastewater treatment process can benefit from the reuse of ferric sludge from drinking waterworks and that this also presents an inexpensive recycling option for these sludges.

scholarly journals Effectiveness of vertical subsurface wetlands for iron and manganese removal from wastewater in drinking water treatment plants

2019 ◽  
Vol 24 (1) ◽  
pp. 135-163
Author(s):  
Jader Martínez Girón ◽  
Jenny Vanessa Marín-Rivera ◽  
Mauricio Quintero-Angel
Keyword(s):  
Drinking Water ◽  
Wastewater Treatment ◽  
Water Treatment ◽  
Treatment Plant ◽  
Drinking Water Treatment ◽  
Water Treatment Plant ◽  
Pilot Scale ◽  
Treatment System ◽  
Water Treatment Plants ◽  
Significant Difference

Population growth and urbanization pose a greater pressure for the treatment of drinking water. Additionally, different treatment units, such as decanters and filters, accumulate high concentrations of iron (Fe) and manganese (Mn), which in many cases can be discharged into the environment without any treatment when maintenance is performed. Therefore, this paper evaluates the effectiveness of vertical subsurface wetlands for Fe and Mn removal from wastewater in drinking water treatment plants, taking a pilot scale wetland with an ascending gravel bed with two types of plants: C. esculenta and P. australis in El Hormiguero (Cali, Colombia), as an example. The pilot system had three upstream vertical wetlands, two of them planted and the third one without a plant used as a control. The wetlands were arranged in parallel and each formed by three gravel beds of different diameter. The results showed no significant difference for the percentage of removal in the three wetlands for turbidity (98 %), Fe (90 %), dissolved Fe (97 %) and Mn (98 %). The dissolved oxygen presented a significant difference between the planted wetlands and the control. C. esculenta had the highest concentration of Fe in the root with (103.5 ± 20.8) µg/g ; while P. australis had the highest average of Fe concentrations in leaves and stem with (45.7 ± 24) µg/g and (41.4 ± 9.1) µg/g, respectively. It is concluded that subsurface wetlands can be an interesting alternative for wastewater treatment in the maintenance of drinking water treatment plants. However, more research is needed for the use of vegetation or some technologies for the removal or reduction of the pollutant load in wetlands, since each drinking water treatment plant will require a treatment system for wastewater, which in turn requires a wastewater treatment system as well.

scholarly journals Nine-Year Study of the Occurrence of Culturable Viruses in Source Water for Two Drinking Water Treatment Plants and the Influent and Effluent of a Wastewater Treatment Plant in Milwaukee, Wisconsin (August 1994 through July 2003)

2005 ◽  
Vol 71 (2) ◽  
pp. 1042-1050 ◽  
Author(s):  
Gerald Sedmak ◽  
David Bina ◽  
Jeffrey MacDonald ◽  
Lon Couillard
Keyword(s):  
Drinking Water ◽  
Wastewater Treatment ◽  
Water Treatment ◽  
Wastewater Treatment Plant ◽  
Environmental Protection Agency ◽  
Treatment Plant ◽  
Drinking Water Treatment ◽  
Source Water ◽  
High Concentration ◽  
Water Treatment Plants

ABSTRACT Reoviruses, enteroviruses, and adenoviruses were quantified by culture for various ambient waters in the Milwaukee area. From August 1994 through July 2003, the influent and effluent of a local wastewater treatment plant (WWTP) were tested monthly by a modified U.S. Environmental Protection Agency Information Collection Rule (ICR) organic flocculation cell culture procedure for the detection of culturable viruses. Modification of the ICR procedure included using Caco-2, RD, and HEp-2 cells in addition to BGM cells. Lake Michigan source water for two local drinking water treatment plants (DWTPs) was also tested monthly for culturable viruses by passing 200 liters of source water through a filter and culturing a concentrate representing 100 liters of source water. Reoviruses, enteroviruses, and adenoviruses were detected frequently (105 of 107 samples) and, at times, in high concentration in WWTP influent but were detected less frequently (32 of 107 samples) in plant effluent and at much lower concentrations. Eighteen of 204 samples (8.8%) of source waters for the two DWTPs were positive for virus and exclusively positive for reoviruses at relatively low titers. Both enteroviruses and reoviruses were detected in WWTP influent, most frequently during the second half of the year.

scholarly journals ANALISIS EKO-EFISIENSI DAUR ULANG AIR LIMBAH DI PT. CHEMCO HARAPAN NUSANTARA

2020 ◽  
Vol 14 (2) ◽  
pp. 78-87
Author(s):  
Nisa Nurhidayanti
Keyword(s):  
Waste Water ◽  
Wastewater Treatment ◽  
Production Process ◽  
Wastewater Treatment Plant ◽  
Treatment Plant ◽  
Water Treatment Plant ◽  
Process Water ◽  
Clean Water ◽  
Production Processes ◽  
Wastewater Recycling

Abstrak - PT. Chemco Harapan Nusantara (PT CHN) membutuhkan air bersih dalam jumlah besar untuk digunakan sebagai air proses dalam kegiatan proses produksi. Adapun total kebutuhan air bersih untuk semua proses produksi yaitu sebanyak 10.450 m3/ bulan. PT CHN dapat menghasilkan produk yang bernilai jual dari penggunaan air bersih tersebut. Di samping itu juga menghasilkan air limbah yang dapat mencemari lingkungan. Tujuan dari penelitian ini adalah untuk menerapkan metode daur ulang air limbah pada PT CHN sehingga dapat mengurangi dampak buruk bagi lingkungan akibat pembuangan air limbah dan menghasilkan penghematan secara ekonomi terutama pada saat Pandemi Covid19 ini. Penerapan dari metode tersebut dilakukan dengan cara mengolah air limbah di dalam instalasi pengolahan air limbah, kemudian mengolah kembali air tersebut di dalam instalasi pengolahan air bersih. Air olahan yang diperoleh kemudian di distribusikan ke masing-masing proses produksi pemakai air bersih. Metode yang digunakan dalam penelitian ini adalah dengan wawancara dan survei secara langsung di lokasi kemudian menganalisis hasil penelitian dengan teknik analisa data coding, entering, cleaning, display dan analyzing. Berdasarkan hasil penelitian menunjukkan bahwa penerapan metode daur ulang air limbah mampu mengubah seluruh air limbah menjadi air bersih yang dapat digunakan untuk proses produksi , sehingga tidak mencemari lingkungan. Hal tersebut terbukti bahwa pada prosesnya seluruh air limbah dimasukkan ke dalam instalasi pengolahan air limbah yang kemudian diolah lagi di WTP dan air hasil olahan dari WTP tersebut digunakan kembali sebagai process water. Penerapan metode daur ulang air limbah yang dilakukan oleh PT CHN juga dapat menguntungkan secara ekonomi yaitu dengan dapat mengurangi pemakaian air WTP Jababeka sebesar 77,5 %, sehingga mampu menghemat biaya pengeluaran pembelian air sebesar Rp 99.187.652 /bulan. Abstract - PT. Chemco Harapan Nusantara (PT CHN) requires large amounts of clean water to be used as process water in production process activities. The total need for clean water for all production processes is 10.450 m3 / month. PT CHN can produce products of value from the use of clean water. Besides that, it also produces waste water which can pollute the environment. The purpose of this research is to apply the wastewater recycling method at PT CHN so as to reduce adverse environmental effects due to waste water disposal and generate economic savings, especially during the Covid Pandemic19. The application of this method is done by treating wastewater in a wastewater treatment plant, then reprocessing the water in a clean water treatment plant. The processed water obtained is then distributed to each of the clean water user production processes. The method used in this study is to interview and survey directly on site and then analyze the results of research with data analysis techniques coding, entering, cleaning, display and analyzing. Based on the results of the study showed that the application of the wastewater recycling method is able to convert all wastewater into clean water that can be used for the production process, so it does not pollute the environment. This is evident that in the process all wastewater is put into a wastewater treatment plant which is then treated again at the WTP and the treated water from the WTP is reused as process water. The application of the wastewater recycling method conducted by PT CHN can also be economically profitable, namely by being able to reduce the use of Jababeka's WTP water by 77,5%, thereby being able to save on the cost of water purchase expenses of Rp 99.187.652 / month.

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