scholarly journals Domestic Wastewater Piping Network Planning and Technology Recommendations for Wastewater Treatment Case Study: The Ambarita Area, Samosir Regency, North Sumatra

2021 ◽  
Vol 1 (3) ◽  
pp. 189-208
Author(s):  
Diki Surya Irawan ◽  
Deffi Ayu Puspito Sari ◽  
Anggita Ariesta
Keyword(s):  
Waste Water ◽  
Wastewater Treatment ◽  
Wastewater Treatment Plants ◽  
Waste Water Treatment ◽  
Network Planning ◽  
Domestic Wastewater ◽  
Quality Standard ◽  
Free Chlorine ◽  
Literature Study ◽  
Treatment Technology

Lake Toba is one of ten programs the Ministry of Tourism in the Republic Indonesia, as a priority tourism area because of its unique potential. The Ambarita is one of 16 villages that are priority areas in Simanindo Subdistrict, Samosir Regency. At present, the quality of Lake Toba's waters has been polluted, the pollution is caused by domestic waste water which is discharged directly without prior treatment. The purpose of this study is to plan a domestic wastewater pipeline network and recommendations for wastewater treatment plants with a centralized system in the Ambarita. This study uses a data analysis method by using a population projection approach with maximum capacity to be planned in the draft MasterPlan of Ambarita and literature study for WWTP technology recommendations. The results showed that the total discharge of wastewater in the Ambarita was 0,06495 m3/second and the results of laboratory tests showed the parameters that exceeded quality standard were free chlorine and fecal coli. Piping network planning in the Ambarita uses concrete type pipes with diameters of 100 mm, 125 mm, 150 mm, 200 mm and 250 mm. The selected Waste Water Treatment Technology recommended is anaerobic-aerobic biofilter technology with removal efficiency for fecal coli and free chlorine are 99.9% and  65%.

Experimental study on sequencing batch biofilm reactor with biological filtration (SBBR-BF) for wastewater treatment

2004 ◽  
Vol 48 (11-12) ◽  
pp. 299-307 ◽  
Author(s):  
T.W. Li ◽  
Y.Z. Peng ◽  
Y.Y. Wang ◽  
G.B. Zhu ◽  
W.Q. Chi ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Laboratory Experiment ◽  
Wastewater Treatment Plants ◽  
Domestic Wastewater ◽  
Biofilm Reactor ◽  
Treatment Technology ◽  
Biological Filtration ◽  
Efficient System ◽  
Filtration Cycle ◽  
Sequencing Batch Biofilm Reactor

A novel wastewater treatment technology combining a sequencing batch biofilm reactor and biological filtration in an SBBR-BF system was presented. Elastic plastic filaments were fixed as biofilms carrying media. Particle materials (sand or anthracite) and the settled sludge constituted the filtration layer. In the laboratory studies, operating results of SBR, SBBR and SBBR-BF were compared. Better quality and stable water quality of effluent could be achieved in SBBR-BF because the fixed film and filtration layer were added in the reactor. Other laboratory experiment results indicated that slow filtration, cycle water stirring and backwashing making use of the settled supernatant are successful methods for preventing clogging and saving energy. The velocity and headloss of filtration were significantly impacted by different MLSS concentration. The MLSS concentration in the reactor must be less than 1,400 mg/L for optimal results. The average velocity of filtration ranging from 0.6 to 1.0 m/h, the backwash velocity of 10–15 m/h and the backwash time of 20 seconds are recommended according to the laboratory experiment. On-site experiment and study showed that SBBR-BF is a stable and efficient system for domestic wastewater treatment, and is particularly suited for small wastewater treatment plants, because of the simple operation and compact installation.

scholarly journals ENZYMATIC WASTE WATER TREATMENT

World Science ◽  
2021 ◽  
Author(s):  
Nancey Hafez
Keyword(s):  
Waste Water ◽  
Wastewater Treatment ◽  
Water Treatment ◽  
Metal Ions ◽  
Wastewater Treatment Plants ◽  
Waste Water Treatment ◽  
High Energy ◽  
Enzymatic Reactions ◽  
Biological Interactions ◽  
Physico Chemical

Enzymes are biocatalysts provided by cells and are used in most metabolic methods. Most enzymes are consisting of proteins containing tertiary amino acid which bind to co enzyme or metal ions. Enzymes are accelerating biochemical processes by some mechanisms to chemical catalysts e.g metals, metal oxides and metal ions. Enzymes can be very effective under conditions e.g (temperature, atmospheric pressure and PH). Many enzymes have hydrolyzing, oxidizing and reducing characters. Enzymatic reactions always provide less side effects reactions and fewer waste by products. That is why microbial Enzymes can give an effective and environmental safe alternatives as metabolic inorganic chemical catalysts which can be used in all over pharmaceutical industrial processes. Enzymes are used in waste water treatment. Treatment technologies depend on physico-chemical approaches in wastewater treatment plants which require skills, high operation costs (in terms of high energy and chemical demand). Wastewater treatment is operated to protect the quality of limited freshwater resources, which are most times the final discharge points of effluents, and also, to promote the reusability of expended clean water; amounts of hazardous aromatic byproducts are still generated [3, 4]. The observation shows that wastewater treatment plants, though liable to remove microcontaminants such as heavy metals, and to a far lesser extent, aromatic contaminants, were originally structured for the removal of solid wastes, ecofriendly organic matter and eutrophication stimulants from wastewater, thereby reducing eutrophicating pollution loads; the micropollutants may only be moderately affected by the chemical, physical and biological interactions within the treatment plants.

Adaptation of the simpletreat chemical fate model to single-sludge biological nutrient removal wastewater treatment plants

1998 ◽  
Vol 38 (1) ◽  
pp. 211-218 ◽  
Author(s):  
G. Boeije ◽  
D. Schowanek ◽  
P. Vanrolleghem
Keyword(s):  
Waste Water ◽  
Water Treatment ◽  
Nutrient Removal ◽  
Wastewater Treatment Plants ◽  
Waste Water Treatment ◽  
Biological Nutrient Removal ◽  
Treatment Technology ◽  
Chemical Fate ◽  
Sludge Recycling ◽  
Recent Developments

Many recent developments in municipal waste water treatment technology are directed towards biological nutrient removal. Chemical fate models which are used to predict the behavior of individual chemicals in waste water treatment plants (WWTPs), have until now not incorporated this aspect. In this paper, two modifications to the steady-state non-equilibrium Simple Treat modeling concept are presented. These focus on an improved description of sludge recycling, and on the presence of different redox zones in the biological reactor (aerobic, anoxic, anaerobic). The updated models were applied to three different WWTP designs, and simulation results were compared to measured values for the surfactant LAS.

The Experience and the Results of Operating Small Wastewater Treatment Plants

1990 ◽  
Vol 22 (3-4) ◽  
pp. 267-273
Author(s):  
Mitja Rismal
Keyword(s):  
Waste Water ◽  
Wastewater Treatment ◽  
Energy Consumption ◽  
Water Treatment ◽  
Activated Sludge ◽  
Wastewater Treatment Plants ◽  
Waste Water Treatment ◽  
Water Jet ◽  
Rotating Discs ◽  
Water Treatment Plants

About 15 years of experience gained from operating 7 small waste water treatment plants between 150-500 p.e. and 6 plants of 2000-3000 p.e. capacity are described. All of the plants involved are low-loaded activated sludge plants with water jet aeration generated by screw or propeller pumps which both proved to be efficient in aeration while secure and simple in operation. In comparison with other types of small treatment plants in our country (rotating discs and bubble aeration activated sludge plants), they proved to be reliable and simple in operation and produce an effluent of good quality. The energy consumption and the necessary flow velocites in aeration tanks are computed and measured.

Electrophoresis in Membrane Separation Processes: From Lab to Field Scale Experiments

2006 ◽  
Vol 314 ◽  
pp. 257-262
Author(s):  
G. Falk
Keyword(s):  
Waste Water ◽  
Wastewater Treatment ◽  
Water Treatment ◽  
Membrane Fouling ◽  
Membrane Separation ◽  
Waste Water Treatment ◽  
Domestic Wastewater ◽  
Field Scale ◽  
Specific Energy Input ◽  
Processing Scheme

In this paper results of electrophoretically activated processes for domestic wastewater treatment in lab and field scale experiments are presented. The principal mechanisms of non-membrane and membrane based electrokinetic solid liquid separation by electrophoresis are described. In the case of non-membrane based electrokinetic wastewater treatment a modular processing scheme is suggested in order to achieve economically and ecologically suitable processing conditions based on colloidal wastewater characteristics. In the case of membrane based electrokinetic waste water treatment an effective anti-membrane fouling process is designed controlled by colloidal characteristics of the wastewater, especially zetapotential, as well as external field parameters and microfiltration module geometries. The specific energy input of the membrane based and non-membrane based electrophoretic waste water treatment methodologies are compared and future perspectives of electrokinetic activated waste water purification processes are proposed.

scholarly journals Eco-friendly Wastewater Treatment Technology in Tidal Area

2019 ◽  
Author(s):  
Amallia Ashuri ◽  
Ida Medawaty
Keyword(s):  
Wastewater Treatment ◽  
Water Body ◽  
Performance Test ◽  
Domestic Wastewater ◽  
Quality Standard ◽  
Average Concentration ◽  
Treatment Technology ◽  
Effluent Quality ◽  
Tidal Area

Access to public sanitation in the tidal area in Indonesia is limited. The people in the tidal area tend to dispose of their domestic wastewater to the water body directly without treating it first. The lack of wastewater infrastructure provision in the tidal area could cause water body pollution that degrades its carrying capacity and destructs aquatic ecosystems. Eco-friendly technology could be used to treat the wastewater in the tidal area as the solution to improve water quality. In this research, the eco-friendly wastewater treatment technology was chosen to observe the effluent quality of individual scale biofilter-phytoremediation. Performance test of wastewater treatment technology was done by measuring the effluent quality. The effluent quality of the biofilter-phytoremediation system was compared to the effluent quality standard that stated in Ministry Regulation of Environment and Forestry No. P.68/Menlhk/Setjen/Kum.1/8/2016. The study showed the following results such as the average concentration of TSS was 7,63 mg/L, pH 6,70, ammonia was 1,78 mg/L, COD was 18,16 mg/L, and BOD was 9,38 mg/L. These results indicated that in general, the effluent quality of biofilter-phytoremediation system had met the above standard.

scholarly journals ENVIRONMENTAL EXERGY ANALYSIS OF WASTEWATER TREATMENT PLANTS

2006 ◽  
Vol 5 (2) ◽  
pp. 24 ◽  
Author(s):  
C. B. H. Mora ◽  
S. De Oliveira Jr
Keyword(s):  
Waste Water ◽  
Wastewater Treatment ◽  
Water Treatment ◽  
Environmental Impact ◽  
Environmental Performance ◽  
Exergy Analysis ◽  
Wastewater Treatment Plants ◽  
Waste Water Treatment ◽  
Exergy Efficiency ◽  
Water Treatment Plants

This work evaluates the environmental impact of Wastewater Treatment Plants (WTP) based on data generated by the exergy analysis, calculating and applying environmental impact indexes for two WTP located in the Metropolitan Area of São Paulo. The environmental impact of the waste water treatment plants was done by means of evaluating two environmental impact exergy based indexes: the environmental exergy efficiency (ηenv,exerg) and the total pollution rate (Rpol,t). The environmental exergy efficiency is defined as the ratio of the exergy of the useful effect of the WTP to the total exergy consumed by human and natural resources, including all the exergy inputs. That relation is an indication of the theoretical potential of future improvements of the process. Besides the environmental exergy efficiency, it is also used the total pollution rate, based on the definition done by Makarytchev (1997), as the ratio of the destroyed exergy associated to the process wastes to the exergy of the useful effect of the process. The analysis of the results shows that this method can be used to quantify and also optimise the environmental performance of Wastewater Treatment Plants.

scholarly journals POSSIBILITY STUDY OF IMPLEMENTING VERTICAL CONSTRUCTED WETLAND FOR DOMESTIC WASTE WATER TREATMENT IN URBAN KAMPONG

2021 ◽  
Vol 10 (2) ◽  
pp. 179
Author(s):  
Haryati Sutanto ◽  
Paulus Bawole
Keyword(s):  
Waste Water ◽  
Wastewater Treatment ◽  
Water Treatment ◽  
Constructed Wetland ◽  
Low Income ◽  
Treatment Plan ◽  
Waste Water Treatment ◽  
Domestic Wastewater ◽  
Domestic Waste ◽  
Study Results

The Indonesian Ministry of Environment in 2014 released study results that 60-70% of rivers in Indonesia have been polluted by domestic wastewater, which is not treated properly. Improper and inadequate wastewater treatment not only pollutes water resources and damages ecosystems, but can also pose a significant public health risk. The development of spontaneous settlements in urban kampong makes the environmental quality within the settlements getting worse and many people consider that the area of urban kampong is not habitable. The efforts to treat wastewater before being discharged into water bodies are very important. The study of "vertical constructed wetland" model using water plants which are also ornamental plants can be considered as an alternative system for household wastewater treatment in kampong settlements.  The objective of the research is to develop an alternative model of wastewater treatment that can overcome the obstacles of implementing a wastewater treatment system in terms of cost and availability land. The result shows that the removal efficiency of BOD, phosphate and total coliform are 71.64%, 50,92% and 99.67% respectively. Since the research is still being conducted on a laboratory scale, the further study must be developed with real case studies in low income community settlements in Kampung Kota. Additionally this research can give suggestions to local government an alternative policy to implement domestic waste water treatment plan in a densely populated settlement along the riverbank in the city.

scholarly journals IMPLIKASI KELUARNYA PERMEN KLHK P.68 TAHUN 2016 TENTANG BAKU MUTU LIMBAH DOMESTIK PADA PENEGAKAN HUKUM DI DKI JAKARTA DAN PEMILIHAN TEKNOLOGI PENGOLAHAN LIMBAH

2018 ◽  
Vol 9 (1) ◽  
Author(s):  
Arie Herlambang ◽  
Nusa Idaman Said
Keyword(s):  
Waste Water ◽  
Environmental Pollution ◽  
Waste Treatment ◽  
Domestic Wastewater ◽  
Quality Standards ◽  
Quality Standard ◽  
Environmental Legislation ◽  
Treatment Technology ◽  
Domestic Waste ◽  
Over Time

The existence of regulations to control environmental pollution has grown over time in line with changes in environmental legislation. In Indonesia since the '80s has been three times experience changes in environmental legislation. Any change in the law is always followed by changes in regulations that are below it. From time to time, the environmental pollution is getting worse and require stricter regulations and implementation. Regulations are too strict sometimes not implementable and eventually are violated because there is no way out solution that does not burden the parties. Domestic waste is the largest portion of urban waste. Its existence has made the environment of rivers, lakes and ground water polluted, due to not properly managed. Regulation of waste quality standards have been tightened over time. Waste water quality standard is the limit or polluted substance or the amount of pollutant elements are tolerable in the waste water to be discharged or released into the water source from a business or activity. The existence of environmental quality standards in Indonesia are set by regulations of environment ministers. Discharge of domestic waste quality standards number P.68 / Menlhk / Secretariat / Kum.1 / 8/2016 has brought on changes in the use of domestic wastewater treatment technologies, as happened tightening in several key parameters, which is still within the limits loose. Keywords : Environmental regulation, waste treatment technology

DESIGN PLANNING WASTEWATER TREATMENT PLANT OF NATA DE COCO INDUSTRY WITH THE ACTIVATED SLUDGE PROCESS

2016 ◽  
Vol 9 (2) ◽  
Author(s):  
Dinda Rita K. Hartaja ◽  
Imam Setiadi
Keyword(s):  
Waste Water ◽  
Wastewater Treatment ◽  
Activated Sludge ◽  
Waste Water Treatment ◽  
Treatment Plant ◽  
Water Treatment Plant ◽  
Appropriate Technology ◽  
Waste Water Treatment Plant ◽  
Activated Sludge Process ◽  
High Level

Generally, wastewater of nata de coco industry contains suspended solids and COD were high, ranging from 90,000 mg / l. The high level of of the wastewater pollutants, resulting in nata de coco industry can not be directly disposed of its wastewater into the environment agency. Appropriate technology required in order to process the waste water so that the treated water can meet the environmental quality standards that are allowed. Designing the waste water treatment plant that is suitable and efficient for treating industrial wastewater nata de coco is the activated sludge process. Wastewater treatment using activated sludge process of conventional (standard) generally consists of initial sedimentation, aeration and final sedimentation.Keywords : Activated Sludge, Design, IPAL

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