Performance of Moringa oleifera extracts and Sudfloc as coagulant aid in raw water treatment in Mauritius

2013 ◽  
Vol 5 (3) ◽  
pp. 273
Author(s):  
Najiah B. Kaudeer ◽  
Ackmez Mudhoo ◽  
Dinesh Surroop
Keyword(s):  
Water Treatment ◽  
Moringa Oleifera ◽  
Raw Water

scholarly journals APPLICATION OF MORINGA OLEIFERA LAM. SEEDS IN WASTEWATER TREATMENT

2020 ◽  
Vol 21 (supplement) ◽  
Author(s):  
Nargis Nisar ◽  
Bhupendra Koul ◽  
Bhupendra Koul
Keyword(s):  
Water Treatment ◽  
Water Purification ◽  
Moringa Oleifera ◽  
Vital Role ◽  
Water Soluble ◽  
Raw Water ◽  
Health Issues ◽  
Neurologic Disorders ◽  
Natural Coagulants ◽  
Animal Consumption

Coagulants play a vital role in treatment of raw water for both human and animal consumption. Aluminium sulphate is the most common and effective chemical coagulant for water treatment. However, chemical coagulants are costineffective, toxic, are not eco-friendly and may also cause severe health issues like cancers and neurologic disorders including Alzheimer’s disease. Therefore, natural and greener methods of water purification are crucial for safe and effective water treatment. Therefore, alternative natural and greener method of water purification is required. Seeds of Vicia faba, Cicer arientinum, Jatropha curcas, Vigna unguiculata, Zea mays, Vigna mungo etc. have also been used in water purification regimes. Moringa oleifera seeds contain anti-microbial properties and cationic water-soluble proteins (polyelectrolytes) which possess active coagulative properties that can remove the turbidity and heavy metals like Cu, Pb, Cr, Zn, etc from raw water, thus can treat impure water efficiently. Therefore, natural coagulants are preferred over chemical coagulants as they are feasible to use, affordable, eco-friendly and less toxic. This review provides explicit information on efficiency and use of M. oleifera seeds in water treatment and their relative comparison with that of routine chemical coagulants. Thus, further collaborative research (industry and academia) on the alternative greener techniques of water purification are still required to gain sustainability in water purification regimes in developing countries.

The Potential of Different Saline Solution on the Extraction of the Moringa oleifera Seed's Active Component for Water Treatment

2011 ◽  
Vol 9 (1) ◽  
Author(s):  
Grasiele Scaramal Madrona ◽  
Rosangela Bergamasco ◽  
Vanessa Jurca Seolin ◽  
Marcia R. Fagundes Klen
Keyword(s):  
Drinking Water ◽  
Water Treatment ◽  
Active Component ◽  
Moringa Oleifera ◽  
Saline Solution ◽  
Drinking Water Treatment ◽  
Raw Water ◽  
Turbidity Removal ◽  
Jar Test ◽  
Moringa Oleifera Lam

The main objective of the present work is to study the efficiency in terms of removing color and turbidity of raw water in order to obtain drinking water. For this purpose, different coagulant solutions were obtained utilizing different salts, NaCl, KCl and MgCl2, in concentration 1M, distilled water combined with the Moringa oleifera Lam seed. Each coagulant solution obtained was studied with concentrations ranging from 25 to 300 mg/L of Moringa in salt solution. The tests were performed in the “Jar Test,” and the efficiency of the process was assessed in terms of color and turbidity. The results show no difference in the coagulation for extracts using the salts KCl, NaCl and MgCl2 1 Molar. The best results were found employing the coagulant solutions extracted with salt, in various concentration ranges (125 to 300 mg/L); as the concentration of protein in solution becomes higher, the greater is its power as a coagulant. The lowest content of protein was found in the solution extracted with water, which consequently had the lowest values of color and turbidity removal. Finally, the results obtained by the present work show that the seed of Moringa oleifera Lam is a great alternative for use as a coagulant in drinking water treatment systems.

scholarly journals Influence of Storage Time of Moringa oleifera seed on the coagulant activity efficiency for raw water treatment

2018 ◽  
Vol 11 (9) ◽  
pp. 1-4 ◽  
Author(s):  
Jhon Jairo Feria D�az ◽  
Gast�n BallutDajud ◽  
Juan Pablo Rodriguez Miranda ◽  
◽  
◽  
...  
Keyword(s):  
Water Treatment ◽  
Storage Time ◽  
Moringa Oleifera ◽  
Raw Water ◽  
Coagulant Activity ◽  
Moringa Oleifera Seed

scholarly journals The Implementation of Chemical Project Learning Model Integrated with Ethno-Stem Approach on Water Treatment Topic Using Kelor (Moringa oleifera) Seed Extract As Bio-Coagulant

2019 ◽  
Author(s):  
S. Sudarmin ◽  
Cepi Kurniawan ◽  
Puji N ◽  
Musyarofah . ◽  
Ariyatun . ◽  
...  
Keyword(s):  
Water Treatment ◽  
Chemistry Education ◽  
Moringa Oleifera ◽  
Seed Extract ◽  
Clean Water ◽  
Raw Water ◽  
Project Learning ◽  
Living Things ◽  
Natural Coagulants ◽  
Moringa Oleifera Seed

Water is one of the natural wealth that is absolutely needed by living things to survive and maintain health. In facts, water treatment is carried out on the raw water that does not meet the standards of clean water quality, therefore, the non-standardized elements need to be eliminated or reduced so that all water meets the applicable standards. One alternative which is available locally is the use of natural coagulants from plants living around us. This research was conducted by students of the UNNES Postgraduate Chemistry Education Magister Program. The process for water treatment employedthepotentialnaturalcoagulantofmoringaseedextractusinganEthno-STEM approach.Thisresearchwascarriedoutasachemicalprojecttask,namelytheproject of using potential bio-coagulant of Moringa oleifera seeds or Moringa plant. In this study, tests were carried out on the use of bio coagulant of moringa seeds extract with various varieties to purify turbid water. The research results concluded that the magisters of chemistry education have been able to design and implement the integrated Ethno-STEM chemical project learning on water purification topic using moringa seed extract (Maringo oleifera). In addition, the findings indicated that the studentswereabletoreconstructethnical-basedscientificknowledgeinthecontextof STEM;andwaterpurificationexperimentswithbio-coagulantofMoringaseedextracts.

Swing Operation Envelope of River-Sourced Water Treatment Facility for Water Injection Purpose in Banyu Urip Field

2021 ◽  
Author(s):  
Muhammad Amin Rois ◽  
Willy Dharmawan
Keyword(s):  
Water Treatment ◽  
River Water ◽  
Rainy Season ◽  
Treatment Cost ◽  
Water Injection ◽  
Injection Rate ◽  
Raw Water ◽  
Treatment Facility ◽  
Water Parameters ◽  
Water Basin

Abstract Banyu Urip reservoir management heavily rely on river-sourced water as water injection to meet Voidage Replacement Ratio target of 1. The treatment facility which consist of Raw Water Basin, Clarifiers, Multi Media Fine (MMF) Filters and Cartridge Filters, is sensitive to seasonal transition and river condition. This paper shares lesson learnt in operating such facility and troubleshooting guidance to overcome challenges of high turbidity during rainy season and lack of river water volume during drought season. To maintain the design intent of Banyu Urip (BU) water treatment facility in achieving water injection quality and quantity at reasonable cost, following activities were undertaken: [1] Critical water parameters data gathering & analysis across each unit; [2] Clarifier Chemical injection dosage verification based on laboratory test; [3] MMF Media coring inspection to assess the filtering media condition; [4] MMF Filters backwash parameters optimization; [5] MMF Filter on-off valve sequencing optimization to address water hammering issue; [6] Water injection rate management to deal with river water source availability along the year. Critical water parameters analysis revealed that chemical dosages were in-adequate to treat the five times higher turbidity coming into Clarifiers during early rain 2019. On top of this, low Raw Water Basin level at the end of long drought further contributed to jeopardize Clarifier's operation. Although in-adequate chemicals injection was resolved at early 2020, the treatment cost remained high, especially on filtration section. Media coring result on MMF Filters confirmed that the filtering media have been poisoned by carried-over mud from Clarifiers during upset. The operation of MMF Filters required extensive optimization on backwash parameters to successfully recover the MMF Filters performance without media replacement. Latest media coring on the worst MMF Filter showed that there was no more top mud layer and the amount of trapped mud had been decreased significantly. Cartridge Filter replacement interval was improved from 38 hours to 186 hours, therefore water treatment cost dropped with quite significant margin. Additionally, the availability of each MMF Filters was also improved. At the same time, the high water injection rate during 2020 rainy season, had successfully increased reservoir pressure buffer up to its maximum point as the anticipation of prolonged drought season. This paper provides the troubleshooting guidance for MMF Filter application in season-prone water treatment facility including insights on interpretation of media coring result and linking it back to optimization strategy on the MMF Filters drain down time for effective backwash process without having excessive media loss.

scholarly journals Cyanobacteria and microcystin contamination in untreated and treated drinking water in Ghana

2017 ◽  
Vol 8 (1) ◽  
Author(s):  
Gloria Naa Dzama Addico ◽  
Jörg D. Hardege ◽  
Jiri Kohoutek ◽  
Kweku Amoaku Atta DeGraft-Johnson ◽  
Pavel Babica
Keyword(s):  
Drinking Water ◽  
Water Treatment ◽  
Human Health ◽  
Metropolitan Area ◽  
Cyanobacterial Blooms ◽  
Maximal Concentration ◽  
Raw Water ◽  
Treated Water ◽  
Treated Drinking Water ◽  
Who Guideline

<p>Although cyanobacterial blooms and cyanotoxins represent a worldwide-occurring phenomenon, there are large differences among different countries in cyanotoxin-related human health risk assessment, management practices and policies. While national standards, guideline values and detailed regulatory frameworks for effective management of cyanotoxin risks have been implemented in many industrialized countries, the extent of cyanobacteria occurrence and cyanotoxin contamination in certain geographical regions is under-reported and not very well understood. Such regions include major parts of tropical West and Central Africa, a region constisting of more than 25 countries occupying an area of 12 million km<sup>2</sup>, with a total population of 500 milion people. Only few studies focusing on cyanotoxin occurrence in this region have been published so far, and reports dealing specifically with cyanotoxin contamination in drinking water are extremely scarce. In this study, we report seasonal data on cyanobacteria and microcystin (MC) contamination in drinking water reservoirs and adjacent treatment plants located in Ghana, West Africa. During January-June 2005, concentrations of MCs were monitored in four treatment plants supplying drinking water to major metropolitan areas in Ghana: the treatment plants Barekese and Owabi, which serve Kumasi Metropolitan Area, and the plants Kpong and Weija, providing water for Accra-Tema Metropolitan Area. HPLC analyses showed that 65% samples of raw water at the intake of the treatment plants contained intracellular MCs (maximal detected concentration was 8.73 µg L<sup>-1</sup>), whereas dissolved toxins were detected in 33% of the samples. Significant reduction of cyanobacterial cell counts and MC concentrations was achieved during the entire monitoring period by the applied conventional water treatment methods (alum flocculation, sedimentation, rapid sand filtration and chlorination), and MC concentration in the final treated water never exceeded 1 µg L<sup>-1</sup> (WHO guideline limit for MCs in drinking water). However, cyanobacterial cells (93-3,055 cell mL<sup>-1</sup>) were frequently found in the final treated water and intracellular MCs were detected in 17% of the samples (maximal concentration 0.61 µg L<sup>-1</sup>), while dissolved MCs were present in 14% of the final treated water samples (maximal concentration 0.81 µg L<sup>-1</sup>). It indicates a borderline efficiency of the water treatment, thus MC concentrations in drinking water might exceed the WHO guideline limit if the treatment efficiency gets compromised. In addition, MC concentrations found in the raw water intake might represent significant human health risks for people living in areas with only a limited access to the treated or underground drinking water.</p>

scholarly journals Perencanaan Sistem Pemanfaatan Air Hujan sebagai Air Siap Minum di Kantor Dinas Pendidikan Provinsi DKI Jakarta

2020 ◽  
Vol 22 (2) ◽  
pp. 139-148
Author(s):  
Ilham Tri Purnomo ◽  
M. Zaky Alfarisi ◽  
Mutioro Sukmono
Keyword(s):  
Water Treatment ◽  
Reverse Osmosis ◽  
Green Building ◽  
Water Tank ◽  
Raw Water

Curah hujan yang tinggi di Jakarta merupakan potensi yang luar biasa dan perlu dimanfaatkan. Pemanfaatan air hujan menjadi air siap minum di Gedung Dinas Pendidikan Provinsi DKI Jakarta merupakan sebuah terobosan penerapan konsep bangunan green building di daerah Ibukota DKI Jakarta. Perencanaan diawali dengan menghitung kebutuhan air minum untuk karyawan di kantor dengan kebutuhan air minum sebanyak 480 liter/hari atau 132.480 liter/tahun. Air hujan difilter dua kali untuk memenuhi standar air minum, sehingga air dapat dikonsumsi. Eksisting raw water tank digunakan untuk menampung air baku hasil filter awal (pretreatment). Sistem pengaliran airnya menggunakan sistem gabungan, air dipompakan dari bak penampung menuju rooftank atau reservoir dengan kapasitas volume sebesar 2550 m3, kemudian air didistribusikan ke lokasi tempat air minum. Pemilihan filter akhir (treatment) dipilih dari perbandingan antara sistem reverses osmosis, sistem depot air minum, dengan sistem dispenser (galon) dan dihasilkan metode reverse osmosis lebih baik dari segi kualitas air serta menguntungkan dari segi ekonomis. Pada tahun ke-2 modal awal yang telah dikeluarkan pada tahun pertama telah kembali. Kemudian pada tahun berikutnya penghematan biaya meningkat. Dibutuhkan biaya keseluruhan pelaksanaan sebesar Rp. 496.636.000,00. Kata Kunci: air hujan, air siap minum, reverse osmosis, water treatment

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