scholarly journals Analisis Keberlanjutan Pengendalian Pencemaran Air Limbah Domestik Menggunakan Constructed Wetlands Teknik Surface Flow (SF)

2021 ◽  
Vol 17 (1) ◽  
pp. 13-24
Author(s):  
Iga Maliga ◽  
Chay Asdak ◽  
Efan Yudha Winata
Keyword(s):  
Constructed Wetlands ◽  
Quantitative Methods ◽  
Domestic Wastewater ◽  
Surface Flow ◽  
Social Dimension ◽  
Wastewater Management ◽  
Management Process ◽  
Economic Dimension ◽  
Qualitative And Quantitative Methods ◽  
River Contamination

Along with the significant increase of population in Bandung City at the moment, domestic wastewater management process must be considered to avoid river contamination, which one of the causes is domestic wastewater disposal without any prior management process. This study is located in Bandung City, which the research was performed in Research Center for Water Resources Office (PUSAIR) Bandung by involving residents of RW 09 Kelurahan Dago as respondents. The method used in this research is a combination of qualitative and quantitative methods. This study aims to analyze the sustainability of the domestic wastewater management process which is carried out using constructed wetlands by considering the economic, environmental, social, and technological aspects. The result shows that the sustainability value of the domestic wastewater management process conducted in the PUSAIR office is approximately 65.2% with the status of moderate sustainability. The detail result of each aspects is economic dimension 62.5%; ecological dimension 75%; social dimension 33.3%; and technological dimension 90%.Keywords: Domestic wastewater, Constructed wetlands, Surface flow techniques, Sustainability analysis

Use of engineered wetlands for onsite treatment of wastewater by the local communities: Experiences from Tanzania

2011 ◽  
Vol 6 (3) ◽  
Author(s):  
K. N. Njau ◽  
W. J. S. Mwegoha ◽  
R. J. Kimwaga ◽  
J. H. Y. Katima
Keyword(s):  
Constructed Wetlands ◽  
Domestic Wastewater ◽  
Industrial Effluents ◽  
Surface Flow ◽  
Pollutant Removal ◽  
Paper Mills ◽  
Waste Stabilization Ponds ◽  
Teachers College ◽  
Operation And Maintenance ◽  
Wide Range

Since its inception about 10 years ago, Constructed Wetlands (CWs) technology has been well received in Tanzania due to a wide range of functions. CWs are used to treat wastewater from municipal systems, pulp and paper industries, prisons, schools and colleges. Among the recipients of CWs are the Moshi Urban Water and Sewerage Authority (MUWSA) for polishing Waste Stabilization Ponds effluents, Kibo Paper Mills for treating industrial effluents, Shinyanga, Malya and Bariadi Prison and Kleruu Teachers College and Ruaha High School for Treatment of domestic wastewater. All these systems are Horizontal Sub-Surface Flow Constructed Wetlands. This paper reports on results of a survey of the six (6) mentioned operating CW systems, focusing on the existing situation and the observed operation and maintenance challenges and needs. The survey was carried by visiting the CWs and sampling for determination of BOD5, COD, PO42-, NO3-N, and NH3-N. Results from the survey and laboratory analyses in three of these CWs indicated lack of general and site-specific operation and maintenance guidelines, which seriously affect life of these systems, aesthetics and performance of pollutant removal. This is evidenced by failure of these systems to meet local and international permissible discharge limits to the receiving water bodies.

scholarly journals Sustainable approach to tempeh industrial wastewater management in Karawang

2018 ◽  
Vol 74 ◽  
pp. 09003
Author(s):  
Silvi Wahyu Puspawati ◽  
Tri Edhi Budhi Soesilo
Keyword(s):  
Industrial Wastewater ◽  
Mixed Methods Research ◽  
Quantitative Methods ◽  
Negative Impact ◽  
Organic Fertilizer ◽  
Quality Standard ◽  
Wastewater Management ◽  
Protein Food ◽  
Qualitative And Quantitative Methods ◽  
Research Findings

Tempeh is a traditional soybean product from Indonesia. It is a high-protein food whose cost per unit is cheaper than any other animal protein sources. However, processes undertaken by tempeh industries will produce waste. To produce tempeh needs a lot of water used for boiling, soaking, leaching, and peeling the soybeans. The problem is that tempeh industries have not undertaken wastewater management properly, which potentially causes the quality of tempeh industrial wastewater to exceed the prescribed quality standard, having negative impact on both the environment and the people living around those industries. This research aims to describe tempeh industrial wastewater management. It is mixed-methods research employing qualitative and quantitative methods, especially through literature review, observation, interviews, and laboratory analysis. Research findings show that the alternative waste management suitable for tempeh industries is to utilize wastewater by considering environmental, social, and economic aspects. Such utilization is carried out by making liquid organic fertilizer and biogas from a mixture of household organic waste. These research findings refer to SDGs’ agenda, especially the goal no. 6 (six), i.e. to improve water quality by reducing pollution from wastewater.

Can constructed wetlands treat wastewater for reuse in agriculture? Review of guidelines and examples in South Europe

2016 ◽  
Vol 73 (11) ◽  
pp. 2616-2626 ◽  
Author(s):  
Stevo Lavrnić ◽  
Maurizio L. Mancini
Keyword(s):  
Climate Change ◽  
Constructed Wetlands ◽  
Wastewater Treatment Plants ◽  
Wastewater Reuse ◽  
Domestic Wastewater ◽  
Water Shortage ◽  
National Standards ◽  
Wastewater Management ◽  
Microbiological Parameters ◽  
South Europe

South Europe is one of the areas negatively affected by climate change. Issues with water shortage are already visible, and are likely to increase. Since agriculture is the biggest freshwater consumer, it is important to find new water sources that could mitigate the climate change impact. In order to overcome problems and protect the environment, a better approach towards wastewater management is needed. That includes an increase in the volume of wastewater that is treated and a paradigm shift towards a more sustainable system where wastewater is actually considered as a resource. This study evaluates the potential of constructed wetlands (CWs) to treat domestic wastewater and produce effluent that will be suitable for reuse in agriculture. In South Europe, four countries (Greece, Italy, Portugal and Spain) have national standards that regulate wastewater reuse in agriculture. Wastewater treatment plants (WWTPs) that are based on CWs in these four countries were analysed and their effluents compared with the quality needed for reuse. In general, it was found that CWs have trouble reaching the strictest standards, especially regarding microbiological parameters. However, their effluents are found to be suitable for reuse in areas that do not require water of the highest quality.

scholarly journals Heliconia stricta Huber Behavior on Hybrid Constructed Wetlands Fed with Synthetic Domestic Wastewater

Water ◽  
2020 ◽  
Vol 12 (5) ◽  
pp. 1373
Author(s):  
Cristina E. Almeida-Naranjo ◽  
Gabriela Guachamín ◽  
Víctor H. Guerrero ◽  
Cristina-Alejandra Villamar
Keyword(s):  
Constructed Wetlands ◽  
Decisive Role ◽  
Domestic Wastewater ◽  
Vertical Surface ◽  
Leaf Length ◽  
Surface Flow ◽  
Operating Conditions ◽  
Successful Implementation ◽  
Basal Diameter ◽  
Tropical Plant

Constructed wetlands (CWs) represent a highly efficient, eco-friendly and economic alternative for wastewater treatment in decentralized contexts. The adequate selection of the plants used in CWs plays a decisive role in the successful implementation and operation of this technology type. In this work, we studied the behavior of a native tropical plant (Heliconia stricta Huber) for the removal of organic matter and nutrients within a hybrid CW system fed with synthetic domestic wastewater. This hybrid system was composed of two wetlands, a vertical surface flow (VSF-CW) and a horizontal subsurface flow (HSSF-CW), connected in series and being operated with nominal hydraulic loading rates of 12 and 9 mm day−1, respectively. Results evidenced nitrification (nitrite concentration increased up to three times) but not denitrification because nitrate concentration increased in the final effluent. The average removal efficiencies were 86.8%, 96.4%, and 57.0%, for COD, NH4+ and PO43−, respectively. On the other hand, the apical height, basal diameter, leaf length and width increased in relation to initial measurements (between 0.6–7.1%) in plants of both CWs, which demonstrated the ability of the plants to adapt to the operating conditions of the system. This promising performance observed when using Heliconia stricta Huber opens the need for further research and could be particularly interesting in CWs used in tropical areas.

scholarly journals A Review On Sub-Surface Flow Constructed Wetlands In Tropical And Sub-Tropical Countries

2016 ◽  
Vol 1 (2) ◽  
Author(s):  
Dadan Sudana Wijaya
Keyword(s):  
Constructed Wetlands ◽  
Domestic Wastewater ◽  
Good Choice ◽  
Surface Flow ◽  
Artificial Wetland ◽  
Tropical Countries ◽  
Treatment Processes ◽  
Natural Wetlands ◽  
The Media ◽  
Cyperus Alternifolius

Water pollution is mostly caused by direct disposal of waste to the ground or river without prior treatment. Several methods had been proposed to overcome the pollution, e.g. by treating the waste prior disposal or by applying artificial wetland systems (constructed wetlands) to treat domestic wastewater. Artificial wetland systems (constructed wetlands) resembles water treatment processes in natural wetlands, that utilizes hydrophytes to symbiose with the microorganisms in the media around the rhizosphere of the plants. A good example of the plant is Cyperus alternifolius, a plant that grows rapidly in wet environments. This plant has a triangular stem, with adult stem height ranged between 0.5-1.5 m. Organic materials contained in the wastewater will be cleaved by the microorganisms into simpler compounds and will be consumed by the plants as a nutrient, while the root system of aquatic plants will produce oxygen that can be used as a source of energy or catalyst for a series of metabolic processes for heterotropic aerobic microorganism. In general, horizontal flow SSF-Constructed Wetlands (hSSF-CW) is being used continuously and applied in many tropical countries. SSF-CW is a good choice for wastewater treatment due to its low maintenance costs and simple operational.

IDENTIFYING THE MOST SUITABLE AREAS FOR SURFACE FLOW WETLAND CONSTRUCTION IN LITHUANIA

2015 ◽  
Author(s):  
Antanas DUMBRAUSKAS ◽  
Nijolė BASTIENĖ ◽  
Petras PUNYS
Keyword(s):  
Constructed Wetlands ◽  
Ecological Status ◽  
Surface Flow ◽  
Gis Analysis ◽  
Proximity Analysis ◽  
Wetland Construction ◽  
The Mean ◽  
Two Phases ◽  
Terrain Features ◽  
Surface Flow Constructed Wetlands

GIS-based approach to find the suitable sites for surface flow constructed wetlands was employed for the Lithuanian river basins with low ecological status. According to the nature of the analysed criteria the flowchart consists of two phases. Criteria used include hydrographical network, soil properties, terrain features, land use, etc. Some of them have strictly defined values (constraints), and other ranges within certain limits (factors). Limited criteria were analysed using rejection principle and influencing factors using proximity analysis and overlay methods. Selecting the potential sites using standard GIS analysis tools there was estimated about 3286 sites for possible wetlands with the mean area of inflow basin about 4 km2 in the basins of water bodies at risk.

Bhaktapur Tourism

2020 ◽  
Vol 3 (1) ◽  
pp. 29-55
Author(s):  
Bharat Prasad Badal
Keyword(s):  
Sustainable Development ◽  
Gender Equity ◽  
Questionnaire Survey ◽  
Sustainable Tourism ◽  
Tourism Development ◽  
Social Dimension ◽  
Multiple Sources ◽  
Economic Dimension ◽  
Sustainable Tourism Development ◽  
One Year

Development in this age of sustainable development is sustainable development itself and tourism development is sustainable development of tourism. The present paper investigates the development of tourism from the socio economic indicators of sustainable tourism of Bhaktapur. Bhaktapur is an open museum and central hub of Tourism. To explore the Economic dimension of Bhaktapur Sustainable Tourism Development through Employment that focuses Number, type and duration of jobs, Gender equity, Business viability, Expenditure, Arrivals, Profitability, and Satisfaction. And to analyze the Social dimension of Bhaktapur Sustainable Tourism Development through Quality of Life that focuses Resident Empowerment, Congestion and crowding, Community attitudes to tourism, Access to amenities, and Changes in crime rate, the study has been conducted. The primary information is based on multiple sources of societal learning like field visits in course of doing researches, observation of various sites, General Household Questionnaire Survey, focus on group discussions, interactive seminars and a number of interactions and interviews with the experts of tourism sector in Bhaktapur. General Household Questionnaire Survey of purposively selected cluster of Dattatraya Square area was conducted on 157 households. Among five clusters Dattatrya Square was purposely selected for the study. Actual spending and length of stay of foreign tourists have been increasing in Nepal. Altogether from socio economic perspective 13 programsare recommended from the study to the local government of Bhaktapur Dattatrya. It needs around265 lakhs and timeline is not more than one year. Five times of these 13 projects and 265 lakhs can double the visitors in coming years.

The Status of Livelihood Vulnerability and Its CopingCapacities of Urban Squatters in Kathmandu Metropolitan City, Nepal

Patan Pragya ◽  
2019 ◽  
Vol 5 (1) ◽  
pp. 19-32
Author(s):  
Chhabi Ram Baral
Keyword(s):  
Data Collection ◽  
Urban Area ◽  
Urban Areas ◽  
Quantitative Methods ◽  
Urban Poverty ◽  
Rural Poverty ◽  
Poor People ◽  
Qualitative And Quantitative ◽  
Qualitative And Quantitative Methods ◽  
The Status

Urban poverty is one of multidimensional issue in Nepal. Increasing immigration from the outer parts of Kathmandu due to rural poverty, unemployment and weak security of the lives and the properties are core causes pushing people into urban areas. In this context how squatter urban area people sustain their livelihoods is major concern. The objectives of the study are to find out livelihood assets and capacities squatters coping with their livelihood vulnerability in adverse situation. Both qualitative and quantitative methods are applied for data collection. It is found that squatters social security is weak, victimized by severe health problems earning is not regular with lack of physical facilities and overall livelihood is critical. This study helps to understand what the changes that have occurred in livelihood patterns and how poor people survive in urban area.

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