scholarly journals The Analysis of pH Performance for Equalization Detention Time Design Case Study : WWTP2 PT. Jababeka Infrastruktur

2020 ◽  
Vol 5 (1) ◽  
pp. 72
Author(s):  
Rizka Dwi Apriliani
Keyword(s):  
Wastewater Treatment ◽  
Ph Value ◽  
Settling Tank ◽  
Treatment Plant ◽  
Secondary Data ◽  
Ph Control ◽  
Detention Time ◽  
Unit Process ◽  
Before And After ◽  
Design Case Study

<strong>Abstract. </strong>PT. Jababeka Infrastruktur is a subsidiary company of PT. Jababeka Tbk., as estate manager. One of the PT. Jababeka Infrastruktur duty is manage Wastewater Treatment Plant 2 (WWTP2). The most of incoming wastewater in WWTP2 PT. Jababeka Infrastruktur is came from food industries, whereas has potential degradable to fatty acid and caused the pH tend to be low and fluctuates. pH is one of the important parameters, especially in biological wastewater treatment system as applied in WWTP2. pH value can affect the microorganism performance in decompose the pollutant compound in wastewater. pH control action is needed to make the treatment run better. <strong>Objectives:</strong> To know the primary settling tank (PST) with   ̴3 hours detention time performance in equalizing wastewater pH. To develop the new equalization tank, it was provide an analysis the pH inlet performance by measuring pH of wastewater. <strong>Method and results:</strong> Statistical analysis of secondary data by comparing standard deviation value of wastewater before and after accommodated in PST also paired sample t-Test to see the performance of PST in equalizing of pH. Besides that, taken and measuring inlet wastewater pH in every one hour also adding to the previous wastewater inlet sample to determine the optimum wastewater detention time in terms of pH. <strong>Conclusion:</strong> PST was significant unit process that can be equalize the pH value. The observation of pH characteristic pattern by time showed that the optimum equalization time was 1-2 hours. This result can be as reference to more utilize of the existing PST.

Intermittent feeding of wastewater in combination with alternating aeration for complete denitrification and control of filaments

2010 ◽  
Vol 61 (9) ◽  
pp. 2259-2266 ◽  
Author(s):  
Styliani Kantartzi ◽  
Paraschos Melidis ◽  
Alexander Aivasidis
Keyword(s):  
Wastewater Treatment ◽  
Total Nitrogen ◽  
Nitrogen Removal ◽  
Wastewater Treatment Plant ◽  
Municipal Wastewater ◽  
Settling Tank ◽  
Treatment Plant ◽  
Operating Conditions ◽  
Anoxic Conditions ◽  
Total Nitrogen Removal

In the present study, a laboratory scale system, consisting of a primary settling tank, a continuous stirred tank reactor and a clarifier were constructed and operated, using wastewater from the municipal wastewater treatment plant in Xanthi, Greece. The system operated under intermittent aeration in aerobic/anoxic conditions and feeding of the wastewater once in every cycle. The unit was inoculated with sludge, which originated from the recirculation stream of the local wastewater treatment plant. The wastewater was processed with hydraulic retention time (HRT) of 12 h, in which various experimental states were studied regarding the combination of aerobic and anoxic intervals. The wastewater was fed in limited time once in every cycle of aerobic/anoxic conditions at the beginning of the anoxic period. The two states that exhibited highest performance in nitrification and total nitrogen removal were, then, repeated with HRT of 10 h. The results show that, regarding the nitrification stage and the organic load removal, the intermittent system achieved optimum efficiency, with an overall removal of biological oxygen demand (BOD5) and ammonium nitrogen in the range of 93–96% and 91–95% respectively. As far as the total nitrogen removal is concerned, and if the stage of the denitrification is taken into account, the performance of the intermittent system surpassed other methods, as it is shown by the total Kjeldahl nitrogen (TKN) removal efficiency of 85–87%. These operating conditions suppressed the growth of filamentous organisms, a fact reflected at the SVI values, which were lower than 150 ml/g.

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 Degradation of Micropollutants by UV–Chlorine Treatment in Reclaimed Water: pH Effects, Formation of Disinfectant Byproducts, and Toxicity Assay

Water ◽  
2019 ◽  
Vol 11 (12) ◽  
pp. 2639 ◽  
Author(s):  
Chi Wang ◽  
Zhian Ying ◽  
Ming Ma ◽  
Mingxin Huo ◽  
Wu Yang
Keyword(s):  
Wastewater Treatment ◽  
Removal Efficiency ◽  
Aquatic Ecosystems ◽  
Ph Value ◽  
Reclaimed Water ◽  
Treatment Plant ◽  
Ph Effects ◽  
Toxicity Assay ◽  
Chlorination Process ◽  
Water Ph

The utilization of reclaimed water is a reliable and sustainable approach to enhance water supply in water-deficient cities. However, the presence of micro-organic pollutants (MPs) in reclaimed water has potential adverse effects on aquatic ecosystems and human health. In this study, we investigated the occurrence of 12 target MPs in the influent and reclaimed water collected from a local wastewater treatment plant, and the ultraviolet (UV)–chlorine process was applied to analyze its ability to remove MPs. The results showed that all 12 MPs were detected in both the influent and the reclaimed water, with the concentrations ranging from 25.5 to 238 ng/L and 8.6 to 42.5 ng/L, respectively. Over 52% of all the target MPs were readily degraded by the UV–chlorine process, and the removal efficiency was 7.7% to 64.2% higher than the corresponding removal efficiency by chlorination or UV irradiation only. The degradation efficiency increased with the increasing initial chlorine concentration. The pH value had a slight influence on the MP degradation and exhibited different trends for different MPs. The formation of known disinfectant byproducts (DBPs) during the UV–chlorine process was 33.8% to 68.4% of that in the chlorination process, but the DBPs’ formation potentials were 1.3 to 2.2 times higher. The toxicity assay indicated that UV–chlorine can effectively reduce the toxicity of reclaimed water.

Integrated soft sensor model for flow control

2006 ◽  
Vol 53 (4-5) ◽  
pp. 473-482 ◽  
Author(s):  
G. Äijälä ◽  
D. Lumley
Keyword(s):  
Wastewater Treatment ◽  
Control System ◽  
Flow Control ◽  
Wastewater Treatment Plants ◽  
Treatment Plant ◽  
Soft Sensor ◽  
Plant Performance ◽  
Unit Process ◽  
Flow Models ◽  
Flow Control System

Tighter discharge permits often require wastewater treatment plants to maximize utilization of available facilities in order to cost-effectively reach these goals. Important aspects are minimizing internal disturbances and using available information in a smart way to improve plant performance. In this study, flow control throughout a large highly automated wastewater treatment plant (WWTP) was implemented in order to reduce internal disturbances and to provide a firm foundation for more advanced process control. A modular flow control system was constructed based on existing instrumentation and soft sensor flow models. Modules were constructed for every unit process in water treatment and integrated into a plant-wide model. The flow control system is used to automatically control recirculation flows and bypass flows at the plant. The system was also successful in making accurate flow estimations at points in the plant where it is not possible to have conventional flow meter instrumentation. The system provides fault detection for physical flow measuring devices. The module construction allows easy adaptation for new unit processes added to the treatment plant.

Pharmaceuticals in processing of municipal sewage sludge studied by grab and passive sampling

2018 ◽  
Vol 53 (1) ◽  
pp. 14-23 ◽  
Author(s):  
Petra C. Lindholm-Lehto ◽  
Heidi S. J. Ahkola ◽  
Juha S. Knuutinen
Keyword(s):  
Wastewater Treatment ◽  
Sewage Sludge ◽  
Passive Sampling ◽  
Solid Phase ◽  
Treatment Plant ◽  
Municipal Sewage ◽  
Municipal Sewage Sludge ◽  
Municipal Sludge ◽  
Bioavailable Fraction ◽  
Before And After

Abstract Concentrations of pharmaceuticals, consisting of four anti-inflammatory and one antiepileptic drug, were studied in the aqueous and solid phase of municipal sewage sludge, collected from a wastewater treatment plant (WWTP) in central Finland. The samples included untreated municipal sludge from the biological wastewater treatment, digested sludge and sludge before and after composting. First, samples were taken as grab samples to study the bioavailable part in aqueous phase but also the part in solid fraction. Later, the long-term concentrations were studied by passive sampling with styrene divinylbenzene-reverse phase sulfonated (SDB-RPS) disks. In the untreated solid sludge, the concentrations of carbamazepine, diclofenac, ibuprofen, ketoprofen, and naproxen were 0.5 ng g−1, 26 ng g−1, 29 ng g−1, 250 ng g−1, and 13 ng g−1, while in liquid phase they were 5.6 ng L−1, 200 ng L−1, 210 ng L−1, 35 ng L−1, and 55 ng L−1, respectively. Concentrations decreased with the treatment steps but substantial amounts still occured even after the final stage. The results show that current sludge treatment cannot fully remove pharmaceuticals, leaving varying concentrations after each stage. Additionally, the results suggest that SDB-RPS disks are suitable for sampling and quantification of the bioavailable fraction of pharmaceuticals in municipal sludge.

scholarly journals Study of Industrial Black Water Treatment Plant Installation Planning System Based on Sewage Treatment Plant

2020 ◽  
Vol 2 (3) ◽  
pp. 128-138
Author(s):  
Jantiara Eka Nandiasa ◽  
Ridi Nurardiansyah
Keyword(s):  
Wastewater Treatment ◽  
Research Method ◽  
Human Life ◽  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Secondary Data ◽  
Quality Standard ◽  
Planning System ◽  
Public Places

Wastewater in general is water, in general, is a liquid that comes from households, industries, or other public places that usually contain materials or substances that can endanger human life and disturb the environment. Quid comes from households, industries, or other public places that usually contain materials or substances that can endanger human life and disturb the environment. This study to plan, analyze, and assess the performance conditions of wastewater treatment plants (IPAL) at PT XYZ Bekasi Regency on environmental quality standards. Data and information used are data on the amount of wastewater, sources of wastewater, and behavior of water use as well as secondary data in the form of data that the authors surveyed directly at the research location. The processing method of the output value of WWTP uses the research method of the laboratories from the research method in which the output value exceeds the quality standard of LHK Regulation No. 68 the Year 2016 and has exceeded its planning capacity. And what is identified is not safe. An alternative solution to the problem of unsafe output values ​​is by planning a new wastewater treatment plant.

Phycoremediation of tertiary municipal wastewater: a new insight of filamentous algae coculture in Nordic country

2021 ◽  
Author(s):  
Yan Li ◽  
Ethan Wood ◽  
Gergely Kosa ◽  
Bushra Muzamil ◽  
Christian Vogelsang ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Municipal Wastewater ◽  
Wastewater Treatment Plants ◽  
Nordic Country ◽  
Treatment Plant ◽  
Ph Control ◽  
Treated Wastewater ◽  
Filamentous Algae ◽  
Algae Biomass ◽  
Pilot Tests

Abstract This study demonstrated that the application of filamentous co-culture could be a promising supplementary approach to further purify municipal tertiary wastewater in Nordic country. Initial screening of 25 algae strains across multiple genera revealed that Spirogyra sp. and Klebsormidium sp. were suitable for use as a coculture for phycoremediation of the tertiary effluent from a wastewater treatment plant, and this result was validated in three consecutive outdoor pilot tests at 10–15 oC. In the first two batches of pilot tests, the total prosperous and ammonium were depleted close to zero in 24 hours, while the pH in the wastewater increased from 7 to 9. In the 3rd batch, CO2 was thereby added for pH control. Macronutrients (N and P) were successfully removed from the treated wastewater. The total algae biomass increased 2 to 3 times over 7 days with average algae productivity of 1.68 g m2 d− 1. Meanwhile, the produced algae biomass accumulated notable mineral elements (Ca, Mg, K, Fe and Al) and some heavy metals at levels of g kg− 1 and mg kg− 1, respectively. In light of circular economy concept, the produced biomass could be used for different valorizations based on the analytical analysis. This study provides a new insight of phycoremediation for further purification of municipal treated wastewater, by effectively using filamentous algae coculture. Given a great potential for further optimization and improvement, this proof of concept will benefit to the green transition of wastewater treatment plants in Nordic country.

Evaluation of the performance of the Tyson Foods wastewater treatment plant for nitrogen removal

2005 ◽  
Vol 51 (11) ◽  
pp. 159-166
Author(s):  
E. Ubay-Cokgor ◽  
C.W. Randall ◽  
D. Orhon
Keyword(s):  
Wastewater Treatment ◽  
Nitrogen Removal ◽  
Wastewater Treatment Plant ◽  
Suspended Solids ◽  
Treatment Plant ◽  
Oxygen Demand ◽  
Total Suspended Solids ◽  
Biological Oxygen Demand ◽  
Average Flow Rate ◽  
Before And After

In this paper, the performance of the Tyson Foods wastewater treatment plant with an average flow rate of 6500 m3/d was evaluated before and after upgrading of the treatment system for nitrogen removal. This study was also covered with an additional recommendation of BIOWINTM BNR program simulation after the modification period to achieve an additional nutrient removal. The results clearly show that the upgrading was very successful for improved nitrogen removal, with a 57% decrease on the total nitrogen discharge. There also were slight reductions in the discharged loads of biological oxygen demand, total suspended solids, ammonium and total phosphorus with denitrification, even though the effluent flow was higher during operation of the nitrogen removal configuration.

Phosphorus Releasing from Surplus Activated Sludge by Ultrasonic Pretreatment

2014 ◽  
Vol 878 ◽  
pp. 702-707 ◽  
Author(s):  
Chang Liu ◽  
Ping Zeng ◽  
Yong Hui Song ◽  
Jian Guang Cheng ◽  
Chao Wei Zhu ◽  
...  
Keyword(s):  
Organic Matter ◽  
Wastewater Treatment ◽  
Activated Sludge ◽  
Wastewater Treatment Plant ◽  
Municipal Wastewater ◽  
Treatment Plant ◽  
Phosphorus Release ◽  
Phosphorus Recovery ◽  
Municipal Wastewater Treatment ◽  
Before And After

Three kinds of surplus activated sludge were pretreated by alkali and combination of alkali and ultrasonic. The changes of PO43-P, TP, SCOD, TOC, TS, VS before and after pretreatment were investigated. The results showed that phosphorus and organic matter could be released into supernatant both by alkali and ultrasonic. The surplus activated sludge from municipal wastewater treatment plant was easier to be broken than that from pharmaceutical wastewater treatment plant. The activated sludge from Qinghe wastewater treatment plant could be selected for further phosphorus recovery since the largest quantity of phosphorus release and the lowest organic matter release ratio among the three kinds of surplus activated sludge.

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