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

2020 ◽  
Vol 21 (supplement) ◽  
Author(s):  
Nargis Nisar ◽  
Bhupendra Koul ◽  
Bhupendra Koul

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.

2019 ◽  
Author(s):  
S. Sudarmin ◽  
Cepi Kurniawan ◽  
Puji N ◽  
Musyarofah . ◽  
Ariyatun . ◽  
...  

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.


2011 ◽  
Vol 2011 ◽  
pp. 1-6 ◽  
Author(s):  
Md. Asrafuzzaman ◽  
A. N. M. Fakhruddin ◽  
Md. Alamgir Hossain

Turbidity imparts a great problem in water treatment. Moringa oleifera, Cicer arietinum, and Dolichos lablab were used as locally available natural coagulants in this study to reduce turbidity of synthetic water. The tests were carried out, using artificial turbid water with conventional jar test apparatus. Optimum mixing intensity and duration were determined. After dosing water-soluble extracts of Moringa oleifera, Cicer arietinum, and Dolichos lablab reduced turbidity to 5.9, 3.9, and 11.1 nephelometric turbidity unit (NTU), respectively, from 100 NTU and 5, 3.3, and 9.5, NTU, respectively, after dosing and filtration. Natural coagulants worked better with high, turbid, water compare to medium, or low, turbid, water. Highest turbidity reduction efficiency (95.89%) was found with Cicer arietinum. About 89 to 96% total coliform reduction were also found with natural coagulant treatment of turbid water. Using locally available natural coagulants, suitable, easier, and environment friendly options for water treatment were observed.


2012 ◽  
Vol 248 ◽  
pp. 298-303
Author(s):  
Ayo Samuel Afolabi ◽  
Rudzani Sigwadi ◽  
Ambali Saka Abdulkareem ◽  
Corina Mary Mateescu

Drinking water is contaminated from the chemicals and biological impurities around the world mostly in rural area. These contaminations may come from natural sources and leaching of waste deposits which cause a major human health hazard in many parts of the world. There has been very little scientific research work into the use of natural flocculants to purify raw water. Most of the research studies that have been done on conventional water purification in developing countries have focussed on conventional water purification systems using inorganic and poly-electrolyte flocculants. Such systems are very expensive for rural communities in these developing countries as our objective is to provide water that is safe for human consumption by using facilities which can be constructed and operated at a reasonable cost. There is a need to evaluate natural flocculants for conventional water treatment in order to develop inexpensive ways for developing countries to purify their water. In this study, the natural flocculants such as Moringa seeds powder, Guar Gum seeds powder, aluminium sulphate and polyelectrolyte were tested in a jar test apparatus to determine the optimum operating conditions for water or wastewater treatment plants. The results showed that the addition of Moringa Oleifera seeds powder, Guar Gum seeds powder, aluminium sulphate and polyelectrolyte flocculants improved the quality of raw water. The raw water samples from all treatment plants showed a reduction in turbidity that was more than 70% when all the four flocculants applied synergistically.


2013 ◽  
Vol 11 (2) ◽  
Author(s):  
Intan Permata ◽  
Margono . ◽  
Ngadino .

Water purification is typically carried out using chemical coagulants like Tewes. localname for Aluminum sulfate. In many parts of the world experts are looking into coagulantmaterials derived from plants. Among many of them is the Moringa seeds. Moringa seedscontain water-soluble proteins, when crushed and dissolved in water it will form a positivelycharged solution. Electrophoreses Test proved that positively charged solution were alsoresulted from the use of Salak seeds and Papaya seed. The purpose of this study was toanalyze the differences in coagulation using Moringa (Moringa oleifera), Salak (Salaccazalacca), and Papaya seeds (Carica Papaya).The study was performed in a quasi-experimental set up exercising a pretest-posttestdesign. The object for the study was water sample taken from a river used by the communityin kecamatan Krembung for their water source. As much as 1000 ml of river water was used ineach test run. Test containers were treated with natural coagulants. Coagulant materials usedin the tests were Tawas powder, Moringa, Salak, and Papaya seeds at a dose-series of 50 ppmto 1000 ppm. The resulted data were analyzed using Kruskal - Wallis Test.There was a significant difference with regard to optimal dose of the natural coagulantsas well as the percentage of turbidity reduction. The optimal dose for Moringa seeds was 130ppm with a percentage of reduction at 97,3% that reduced turbidity down to 2.7 NTU. Theoptimal dose for Salak seeds was 100 ppm that resulted in a percentage reduction of 89,2%and reduced the turbidity down to 10.9 NTU. The optimal dose for Papaya seeds was 50 ppmwith a percentage of decline at 83,4% reducing the turbidity down to 16,7 NTU. Moringaseeds coagulant has maximum turbidity reducing capability, while the other two naturalcoagulants, Salak and Papaya seeds, were not in their maximum levels of turbidity reducingcapabilities.At a dose of 200 ppm Moringa seeds exhibited a greater ability as a coagulant inlowering water turbidity compared to the other natural coagulants, Salak seeds at a dose of100 ppm and Papaya seeds at a dose of 50 ppm. The study concluded that Moringa seeds canbe applied as a substitute for chemical coagulants provided they are used within 1 x 24 hours.Key Words : Turbidity and Coagulant


Author(s):  
Maiara Luzia Grigoli OLIVIO ◽  
Elizângela Flávia Jacob ESTEVES ◽  
Dagmar Aparecida de Marco FERRO

Comumente o sulfato de alumínio é o coagulante químico utilizado nas Estações de Tratamentos para a clarificação da água, embora produza um lodo tóxico de difícil deposição no ambiente. No entanto, os coagulantes naturais como sementes de Moringa oleífera Lam. têm demonstrado vantagens para tratamento em comparação aos químicos, pela simplicidade de uso e baixo custo. O estudo objetivou analisar a eficiência coagulante da semente de Moringa oleífera na clarificação de água com turbidez e comparar com os parâmetros do coagulante químico sulfato de alumínio. As amostras de água foram coletadas no Córrego Jacu Queimado e as sementes colhidas em um plantio da própria espécie. Foram realizados, em laboratório, etapas sequenciais do experimento: comparação da eficiência da semente verde e seca, determinação da concentração e tempo de exposição da semente à água, comparação de agitação manual e magnética entre elas e do coagulante biológico com o químico, sendo analisados os aspectos físico, químico e biológico antes e após a adição de ambos. Observou-se que apenas a semente seca realiza a clarificação da água em comparação com os resultados das análises da água clarificada com o sulfato, determinando-se que 5 sementes são eficazes para tratar 1 litro de água com turbidez de até 25,0 NTU, considerando-se mais relevante a agitação manual para o efeito de coagulação e o aguardo de 2 horas para o término da decantação. Conclui-se, que a semente de Moringa é um coagulante biológico que se apresenta como alternativa para o tratamento de água com turbidez, porém, ainda não é indicada para a potabilidade. É preciso dar continuidade ao tratamento em busca de processos que visam melhorar a qualidade da água para aproximar-se aos parâmetros aceitáveis para o consumo humano.   Moringa oleífera Lam SEEDS: EFFICIENT USE OF BIOLOGICAL COAGULANT FOR WATER TURBIDITY TREATMENT, COMPARED TO ALUMINUM SULFATE CHEMICAL COAGULANT   ABSTRACT Aluminum sulfate is a chemical coagulant commonly used at Water Treatment Plants for water clarification, although it produces a toxic sludge of difficult deposition in the environment. However, natural coagulants such as Moringa oleíferaLam seeds have evidenced the advantages for the treatment when compared to chemicals, due to either their simplicity in and low cost.  This research aims at reviewing the efficient use of   Moringa oleífera seeds as coagulants for turbid water clarification as well as comparing the parameters of aluminum sulfate chemical coagulants. The water samples were collected at Córrego Jacu Queimado and the seeds were harvested from a crop of its own species. Sequential steps were performed in the lab for this experiment: Comparison of green and dry seeds efficiency, concentration and time of exposition of the seed to water measurements, comparison of manual and magnetic stirring among them and among biological and chemical coagulants, being analyzed physical, chemical and biological aspects before and after adding both of them. It was observed that only the dry seed enables water clarification when comparing the analysis results to sulfate water clarification, it was ascertained that 5 seeds are efficient to treat a liter of 25,0 NTU turbidity in water, considering as more relevant manual stirring for coagulation effect after a two-hour rest for decantation completion. It was concluded that Moringa seed is a biological coagulant presented as an alternative for turbid water treatment, although it is not indicated for drinkability. Further treatment is necessary in order to keep searching for processes that target to improve the quality of water and meeting acceptable parameters for water consumption.   Keywords: Biological Coagulant. Chemical Coagulant. Efficiency. Water Clarification. Comparative Parameters.


Author(s):  
Alakaparampil Joseph Varkey

A simple, efficient and stand-alone method for purification of river water using moringa seed powder and copper is discussed. Coagulant property of the seed powder clears turbid raw water and the oligodynamic activity of copper completely destroys E.coli bacteria. Both raw and treated water samples were tested for contaminants to verify the efficacy of the system. Treated water has turbidity in the range 3 NTU - 5 NTU and non-detected (< 1 MPN/100 mL) E.coli count making it suitable for drinking. The technique is very cost effective and can be practiced anywhere using locally available materials. It does not require a power source or any technical assistance. Being a stand-alone system the technique exceptionally useful in providing drinking water as an immediate solution in disaster areas affected by cyclone or floods.


Author(s):  
Grasiele Scaramal Madrona ◽  
Rosangela Bergamasco ◽  
Vanessa Jurca Seolin ◽  
Marcia R. Fagundes Klen

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.


2018 ◽  
Vol 11 (35) ◽  
pp. 1-5
Author(s):  
Feria D�az Jhon Jairo ◽  
Wilches Fernando Jove ◽  
Hernandez �vila Rodrigo ◽  
◽  
◽  
...  

Author(s):  
F. B. Omiyale ◽  
F. O. Ekundayo

This work compares the effect of alum, a conventional flocculant to the bioflocculant isolated from Bacillus subtilis and Moringa oleifera seed powder (non conventional bioflocculants) and chlorine as disinfectant on microbial contaminants in water purification. Bioflocculant was purified from the sand sediments of Onyearugbulem market, jar test method was used in bioflocculating activity and dosage. Bioflocculant purified from Bacillus subtilis isolated from the sediments of Onyearugbulem market stream inhibited the growth of coliform for well, stream and abattoir waste water samples. On the other hand, alum sulfate when compared with bioflocculant at a dosage level of 200 mg for well and stream waters and 800 mg for abattoir waste water yielded flocculating activities of 87.33%, 78.42% and 24.60%. This indicates that purified bioflocculant was more effective than alum sulphate. Bioflocculant produced from Bacillus subtilis should be exploited in water treatment. Moringa oleifera seed powder exhibited both flocculating and disinfecting potentials in water treatment but not effective in the treatment of abattoir waste water. 


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