scholarly journals Domestic wastewater treatment with household-scale constructed wetland system using water fern plant (Azolla pinnata)

2021 ◽  
Vol 894 (1) ◽  
pp. 012032
Author(s):  
A Magfhira ◽  
P Kinasih ◽  
D Salsabila ◽  
E Marchella ◽  
M F Fachrul
Keyword(s):  
Wastewater Treatment ◽  
Plant Growth ◽  
Chemical Oxygen Demand ◽  
Biochemical Oxygen Demand ◽  
Aquatic Environment ◽  
Oxygen Demand ◽  
Domestic Wastewater ◽  
Azolla Pinnata ◽  
Domestic Wastewater Treatment

Abstract The purpose of writing this scientific paper is to analyze more deeply the management of the quality of the aquatic environment, especially regarding the treatment of domestic wastewater on a household scale. Domestic wastewater treatment with a constructed land system using Air Fern (Azolla pinnata) is expected to reduce concentration parameters such as BOD (Biochemical Oxygen Demand), COD (Chemical Oxygen Demand), and Ammonia. The growth rate of Air Fern (Azolla pinnata) after acclimatization is quite good so that it can reduce BOD (Biochemical Oxygen Demand), COD (Chemical Oxygen Demand) and Ammonia, which are a source of nutrients for plant growth so that it can be used as a promising material for plant growth. It can be used as a promising material for plant growth domestic wastewater treatment. The analysis was carried out using the blended concept, a combination of virtual, online, and laboratory/field activities (offline/outside the network) while still paying attention to health protocols. The priority of this literature study research is to provide input for the government in the form of alternative solutions for managing the quality of the aquatic environment, especially regarding domestic wastewater treatment on a household scale. In addition, this research also supports the international Sustainable Development Goals (SDGs) program: Goal 6: Access to Clean Water and Sanitation” in point 3, namely “Improving water quality by reducing pollution, eliminating waste disposal, and minimizing the disposal of chemicals and hazardous materials, halving the proportion of untreated wastewater and substantially increasing recycling and safe reuse globally”. This research can contribute to appropriate technology in environmental biotechnology, namely wastewater treatment with a system that has simple technology, low cost, energy-saving and is environmentally friendly, which can create a level of hygiene and comfort for the community and maintain environmental sustainability future.

scholarly journals Aerobic Brickbat Grit Sand (ABGS) Purifier is the Alternative Solution: Tackling the Problem of Rural Wastewater Treatment in India

2018 ◽  
Vol 13 (3) ◽  
pp. 457-464
Author(s):  
PRIYANAND AGALE ◽  
PARAG SADGIR
Keyword(s):  
Wastewater Treatment ◽  
Oxygen Demand ◽  
Domestic Wastewater ◽  
Alternative Solution ◽  
Domestic Wastewater Treatment ◽  
Zigzag Pattern ◽  
Important Barrier ◽  
Removal Of Contaminants ◽  
College Of Engineering ◽  
Rural Wastewater

Rural wastewater treatment is mostly ignored in developing and undeveloped countries. The most important barrier for addressing to this problem is cost of treatment and simplified technology. Aerobic Brickbat Grit Sand (ABGS) purifier consists of four stages. Wastewater flows gravitationally through partition walls in zigzag pattern with brick bats filter; Pebble sand filter and charcoal and grit filter which facilitate removal of contaminants from domestic wastewater. In the present study, experimental model for domestic wastewater treatment was setup in the Environmental Engineering laboratory at Government College of Engineering Aurangabad, Maharashtra. Physiochemical analysis was done in August and September of 2016 the percentage removal of contaminants results shows Biological Oxygen Demand (BOD) 92% - 87%, Chemical Oxygen Demand (COD) 93 - 89%, Total Suspended Solids( TSS) 80 - 78% and Turbidity 95 - 85%. The process is considered eco-friendly and easy to install technology for domestic wastewater treatment with use of locally available material. ABGS purifier is decentralized approach of domestic wastewater treatment. Hence ABGS as an alternative solution to tackle over the problem of rural wastewater treatment.

scholarly journals Assessment of the Water Quality Characteristics of Kaduna River Receiving Wastewater Discharges

2019 ◽  
Vol 3 (1) ◽  
pp. 56-61
Author(s):  
H. Garba ◽  
C. A. Elanu
Keyword(s):  
Water Quality ◽  
Dissolved Oxygen ◽  
Chemical Oxygen Demand ◽  
Biochemical Oxygen Demand ◽  
Oxygen Demand ◽  
Domestic Wastewater ◽  
Quality Characteristics ◽  
Chemical Characteristics ◽  
Mean Concentration ◽  
Concentration Levels

An assessment of the chemical characteristics of industrial and domestic wastewater discharges on seven parameters into Kaduna River on a bimonthly basis was carried out. PH, dissolved oxygen (DO), chloride, nitrite, chemical oxygen demand (COD), biochemical oxygen demand (BOD) and iron were analyzed to determine their concentration levels. From the analysis, the highest mean concentration of the parameters were 8.24 of pH, 7.7 mg/l of DO, 233.4 mg/l of chloride, 55.68 mg/l of COD, 27.95 mg/l of nitrite, 122.22 mg/l of BOD, and 17.05 mg/l of iron. After comparing with prescribed standards, it can be concluded that there is evidence of organic and inorganic accumulation of contaminants into River Kaduna.

scholarly journals Chemical Oxygen Demand and Ammonia Nitrogen Mycoremediation from Domestic Wastewater Effluent using Ganoderma lucidum in a Batch System.

2020 ◽  
Author(s):  
Silambarasi Mooralitharan ◽  
Zarimah Hanafiah ◽  
Teh Sabariah Abd Manan ◽  
Hassimi Hasan ◽  
Henritte Jensen ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Chemical Oxygen Demand ◽  
Ganoderma Lucidum ◽  
High Performance ◽  
Treatment Time ◽  
Regression Line ◽  
Oxygen Demand ◽  
Domestic Wastewater ◽  
Ammonia Nitrogen ◽  
Optimum Conditions

Abstract The fungi-based technology, wild-Serbian Ganoderma lucidum (WSGL) as myco-alternative to existing conventional microbial-based wastewater treatment is introduced in this study as a potential alternative treatment. The mycoremediation is highly persistent for its capability to oxidatively breakdown pollutant substrates and widely researched for its medicinal properties. Utilizing the non-hazardous properties and high degradation performance of WSGL, this research aims to find optimum conditions and model the mycoremediation treatment design for Chemical Oxygen Demand (COD) and Ammonia Nitrogen (AN) removal in domestic wastewater via response surface methodology (RSM). Combined process variables were temperature (⁰C) (Model 1) and the volume of mycelial pellets (%) (Model 2) against treatment time (hour). Response variables for these two sets of central composite design (CCD) were the removal efficiencies of COD (%) and AN (%). The regression line fitted well with the data with R2 values of 0.9840 (Model 1-COD), 0.9477 (Model 1-AN), 0.9988 (Model 2-COD) and 0.9990 (Model 2-AN). The lack of fit test gives the highest value of Sum of Squares equal to 9494.91 (Model 1- COD), 9701.68 (Model 1-AN), 23786.55 (Model 2-COD) and 13357.02 (Model 2-AN), with probability F values less than 0.05 showing significant models. The optimum conditions were established corresponding to the percentage of COD and AN removal obtained were 95.1% and 96.3%, accordingly at the optimum temperature 25°C at the treatment time of 24 h, meanwhile 0.25% of mycelial pellet with 76.0% and 78.4% COD and AN removal, respectively. The high performance achieved demonstrates that the mycoremediation of G. lucidum is highly potential as part of the wastewater treatment system in treating domestic wastewater of high organic loadings.

scholarly journals Improvement performance of secondary clarifiers by a computational fluid dynamics model

2011 ◽  
Vol 19 (4) ◽  
pp. 1-11 ◽  
Author(s):  
Ali Ghawi ◽  
J. Kriš
Keyword(s):  
Fluid Dynamics ◽  
Computational Fluid Dynamics ◽  
Wastewater Treatment ◽  
Chemical Oxygen Demand ◽  
Biochemical Oxygen Demand ◽  
Suspended Solids ◽  
Oxygen Demand ◽  
Design Parameters ◽  
Dynamics Model ◽  
Computational Fluid Dynamics Model

Improvement performance of secondary clarifiers by a computational fluid dynamics model Secondary clarifier is one of the most commonly used unit operations in wastewater treatment plants. It is customarily designed to achieve the separation of solids from biologically treated effluents through the clarification of biological solids and the thickening of sludge. As treatment plants receive increasingly high wastewater flows, conventional sedimentation tanks suffer from overloading problems, which result in poor performance. Modification of inlet baffles through the use of an energy dissipating inlet (EDI) was proposed to enhance the performance in the circular clarifiers at the Al-Dewanyia wastewater treatment plant. A 3-dimensional fully mass conservative clarifier model, based on modern computational fluid dynamics theory, was applied to evaluate the proposed tank modification and to estimate the maximum capacity of the existing and modified clarifiers. A Computational Fluid Dynamics (CFD) model was formulated to describe the tank is performance, and design parameters were obtained based on the experimental results. The study revealed that velocity and (suspended solids) SS is a better parameter than TS (total solids), (Biochemical Oxygen Demand) BOD, (Chemical Oxygen Demand) COD to evaluate the performance of sedimentation tanks and that the removal efficiencies of the suspended solids, biochemical oxygen demand, and chemical oxygen demand were higher in the baffle.

scholarly journals Physico-chemical investigation of wastewater from the Sebdou-Tlemcen textile complex North-West Algeria

2021 ◽  
Vol 6 (2) ◽  
pp. 361-370
Author(s):  
Asma Khelassi- Sefaoui ◽  
Abderrahmane Khechekhouche ◽  
Manel Zaoui-Djelloul Daouadji ◽  
Hamza Idrici
Keyword(s):  
Wastewater Treatment ◽  
Chemical Oxygen Demand ◽  
Water Temperature ◽  
Biochemical Oxygen Demand ◽  
Suspended Solids ◽  
Treatment Plant ◽  
Oxygen Demand ◽  
North West ◽  
Physico Chemical ◽  
West Algeria

Wastewater treatment is a process used in several countries, particularly in Algeria. A study on Earth for one month was carried out at the sewage plant of the Sebdou textile complex, Tlemcen, north-west of Algeria. Regular samples gave average values at the outlet such that the water temperature is 22 ° C, the ph 7.43, the biochemical oxygen demand BOD5 is 36.5 mg / l, the chemical oxygen demand COD vary between 100 and 200 mg / l at the exit of the WWTP mg / l and finally suspended solids SS is of the order of 36.2 mg / l. All these values conform with the standards and therefore the treatment plant operates within Algerian standards.

scholarly journals EFEKTIFITAS SISTEM LAHAN BASAH BUATAN DALAM PENGOLAHAN LIMBAH CAIR RUMAH SAKIT-X (Effectiveness of Artificial Wetland System in Processing Liquid Waste of Hospital-X)

2020 ◽  
Vol 27 (2) ◽  
pp. 39
Author(s):  
Atieka Wulandari ◽  
Rossie Wiedya Nusantara ◽  
Muhammad Sofwan Anwari
Keyword(s):  
Wastewater Treatment ◽  
Chemical Oxygen Demand ◽  
Control Plant ◽  
Liquid Waste ◽  
Oxygen Demand ◽  
Domestic Wastewater ◽  
Biological Oxygen Demand ◽  
Artificial Wetland ◽  
Canna Indica ◽  
Colour Parameter

AbstrakLahan basah buatan adalah sistem yang melibatkan tanaman, tanah, mikroba sebagai pengolahan limbah cair. Penelitian ini bertujuan untuk mengkaji efektifitas sistem lahan basah buatan dalam pengolahan limbah cair rumah sakit X dan mengkaji kemampuan jenis tanaman Canna Indica, Echinodorus palaefolius dan Iris pseudoacorus sebagai biofilter limbah cair rumah sakit X . Lahan basah buatan dibuat menggunakan media pasir, karbon aktif, dan kerikil dalam skala laboratorium. Analisis data menggunakan uji Anova dan Uji BNT dengan penggunaan jenis tanaman sebagai perlakuan biofilter, yaitu Canna Indica, Echinodorus palaefolius plant, Iris pseudoacorus, penggabungan ketiga tanaman, dan tidak ada tanaman sebagai kontrol. Waktu detensi 3, 6, dan 9 hari sebagai perlakuan hari dengan tiga kali ulangan. Parameter utama adalah Biological Oxygen Demand (BOD), Chemical Oxygen Demand (COD), dan amoniak. Parameter pendukung warna, bau, suhu, dan pH. Lahan basah buatan terbukti efektif dalam pengolahan limbah cair rumah sakit X dan ada perlakuan yang memberikan pengaruh beda nyata terhadap perubahan kualitas air limbah. Hasil penelitian menunjukkan efisiensi penurunan BOD dan COD terjadi pada waktu detensi 6 hari. Variasi waktu berpengaruh terhadap penurunan konsentrasi BOD dan COD. Penggabungan ketiga tanaman (C. Indica, E. palaefolius dan I. pseudoacorus) terbukti efektif sebagai biofilter dalam penurunan parameter pH (11,2%) dan warna (27,4%), serta tanaman Echinodorus palaefolius terbukti efektif sebagai biofilter dalam penurunan parameter amoniak (34%), namun pengggunaan tanaman (biofilter) dalam lahan basah buatan tidak terbukti efektif pada penurunan BOD, COD, dan suhu. Hasil penelitian ini telah memenuhi persyaratan yang ditetapkan oleh Permen KLHK No: P. 68/Menlhk/Setjen/Kum.1/8/2016 tentang Baku mutu air Limbah domestik.AbstractAn artificial wetland is a system which involves plants, soil, and microbes in the wastewater treatment. This research aims to examine the effectiveness of artificial wetland to be used for the hospital’s wastewater treatment. It also reviews the role of Canna Indica, Echinodorus palaefolius, and Iris pseudoacorus to serve as biofilters of the hospital’s wastewater. The artificial wetland is made of sand, active carbon, and gravels in lab-scale amount. The data was analysed by using Anova test and BNT test. The analysis involved several types of plants serving as a biofilter treatment, namely Canna Indica, Echinodurus palaefolius, Iris pseudoacorus, and the combination of these three plants. None served as a control plant. The detention times were 3, 6, and 9 days compounded with three-time repetitions. The main parameters were Biological Oxygen Demand (BOD), Chemical Oxygen Demand (COD), and amoniak. Supporing parameters included colour, odor, temperature, and pH. The artificial wetland was considered effective in the hospital’s wastewater treatment. The results also documented that some treatments had a significantly different effect towards the change of wastewater quality. The research indicated that the efficiency of BOD’s and COD’s decline occured at 6 days of detention. The variety of time affected the concetration decline of BOD and COD. The combination of three plants (E. palaefolius, I. pseudoacorus, and C. Indica) was proven effective as a biofilter which reduces pH parameter (11,2%) and colour parameter (27,4%). In addition, The Echinodorus palaefolius plant was reported effective to reduce amoniak parameter (34%). However, the use of plants (biofilter) in the artificial wetland was not effective towards the decline of BOD, COD, and temperature. The results of this research therefore have met the requirement stipulated by the Goverment regulation of KLHK (Ministry of Environment and Forestry) No : P.68/Menlhk/Setjen/Kum.1/8/2016 on the quality standards of the domestic wastewater.

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