Flocculation properties and kinetic investigation of polyacrylamide with different cationic monomer content for high turbid water purification

2017 ◽  
Vol 182 ◽  
pp. 134-143 ◽  
Author(s):  
Jiangya Ma ◽  
Kun Fu ◽  
Xue Fu ◽  
Qingqing Guan ◽  
Lei Ding ◽  
...  
Keyword(s):  
Water Purification ◽  
Kinetic Investigation ◽  
Turbid Water ◽  
Cationic Monomer ◽  
Monomer Content

scholarly journals “PERAK” (PERANTI PEMURNI AIR KERUH) UNTUK MENGATASI KEKURANGAN AIR BERSIH DI DESA SENGGIGI

2019 ◽  
Vol 25 (4) ◽  
pp. 201
Author(s):  
Candra Dwipayana Hamdin ◽  
Handa Muliasari ◽  
Retno Zahara ◽  
Mujiburrohman Mujiburrohman ◽  
Devy Shandra Purwati ◽  
...  
Keyword(s):  
Water Supply ◽  
Everyday Life ◽  
Water Purification ◽  
Water Shortage ◽  
Clean Water ◽  
Turbid Water ◽  
Self Help ◽  
Self Help Groups ◽  
And Training ◽  
Self Help Group

Desa Senggigi merupakan salah satu daerah yang kekurangan pasokan air bersih, khususnya di Dusun Senggigi RT 04.Kondisi ini sangat memprihatinkan, sebab ketika musim kemarau tiba sangat sulit untuk memperoleh air bersih.Adapun air PDAM maupun air sungai sangatlah keruh sehingga tidak layak untuk digunakan.Oleh karena itu,dibutuhkan sebuah solusi terkait pengelolaan air keruh menjadi air bersih, yaitu PERAK (Peranti Pemurni Air Keruh).Tujuan dibuatkan program ini adalah terciptanya suatu alat pemurni air keruh (PERAK),terbentuk masyarakat yang terampil dalam mengelola air keruh menjadi air bersih, dan terbentuknya KelompokSwadaya Masyarakat di Dusun Senggigi. Metode yang digunakan dalam program ini adalah sosialisasi dan pelatihan pembuatan PERAK. Adapun hasil yang didapatkan pada pelaksanaan program ini adalah PERAK telah dapat menghasilkan air bersih yang dapat digunakan untuk keperluan kehidupan sehari-hari.Selain itu warga Dusun Seggigi juga telah mampu membuat PERAK dan telah dibentuknya Kelompok Swadaya Masyarakat yang bertugas memonitoring pelaksanaan program sehingga tercipta kemandirian dalam pelaksanaan program tersebut.Dengan demikian PERAK telah berhasil menjadi solusi bagi permasalahan kekurangan air bersih bagi Dusun Senggigi.Kata kunci: Air Bersih; Air Keruh; Pemurni Air; PERAK; Senggigi.AbstractSenggigi Village is one of the areas that lack of clean water supply, especially in Dusun Senggigi RT 04. This condition is very concerning, because when the dry season comes, it is very difficult to obtain clean water. The PDAM water or river water is very muddy so it is not feasible to use. Therefore, it takes a solution related to the management of turbid water into clean water, which is PERAK (Refrigerant Water Purifier). The purpose of this PERAK program is to create a turbid water purification tool (PERAK), to form a skilled community in managing turbid water into clean water, and forming Self-Help Groups in Senggigi Village. The methods used in this program are socialization and training on making PERAK. As for the results obtained in the implementation of this program is PERAK has been able to produce clean water that can be used for the purposes of everyday life. In addition, residents of Dusun Senggigi has also been able to make PERAK and has formed a Self-Help Group which is tasked to monitor the implementation of the program so as to create independence in the implementation of the program. Thus PERAK has successfully become the solution for the problem of water shortage for Dusun Senggigi.Keywords: Clean Wate; Cloudy Water; Water Purifier; PERAK; Senggigi.

Preparation of Cationic Polyacrylamide Nanocomposite by Aqueous Two-Phase Polymerization Method

2013 ◽  
Vol 815 ◽  
pp. 484-489
Author(s):  
Quan Cai Wu ◽  
Shu Li
Keyword(s):  
Aqueous Solutions ◽  
Monomer Concentration ◽  
Reaction Conditions ◽  
Two Phase ◽  
Cationic Polyacrylamide ◽  
Organic Montmorillonite ◽  
Cationic Monomer ◽  
Polymerization System ◽  
Monomer Content ◽  
Polymerization Method

In order to improve the aqueous solutions viscosity and flocculation performance of cationic polyacrylamide, organic montmorillonite was added into polymerization system of polyacrylamide, the cationic polyacrylamide/dimethyl diallyl ammonium chloride/organic montmorillonite (CPAM/DMDAAC/MMT) nanocomposite was prepared by aqueous two-phase polymerization method. The influence of organic montmorillonite content, cationic monomer content, polyethylene glycol concentration, monomer concentration on the intrinsic viscosity of the CPAM/DMDAAC/MMT nanocomposite were discussed. The reaction conditions were optimized by orthogonal test. The chemical component and organic montmorillonite shape of the cationic CPAM/DMDAAC/MMT nanocomposite were analyzed by FTIR and XRD respectively. The results show that CPAM/DMDAAC/MMT nanocomposite with high aqueous solutions viscosity and beyond compare flocculation performance has been obtained by aqueous two-phase polymerization method. The CPAM/DMDAAC/MMT nanocomposite has been used very well as a flocculating agent.

Chitosan and Bentonite as Coagulant in Dissolved Air Flotation Tank

2015 ◽  
Vol 754-755 ◽  
pp. 728-732
Author(s):  
Mohd Remy Rozainy Mohd Arif Zainol ◽  
Hasif Mokhtar ◽  
Syafalni Sutan ◽  
Khairy Abdul Wahab ◽  
Mohd Mustafa Al Bakri Abdullah
Keyword(s):  
Water Purification ◽  
Turbid Water ◽  
Good Strategy ◽  
Natural Clay ◽  
Dissolved Air Flotation ◽  
Mixture Ratio ◽  
Initial Stage ◽  
The Cost ◽  
Operation Cost ◽  
Dissolved Air

The use of monocoagulants, such as Chitosan, may not be a good solution for highly turbid water purification because of its high cost. The possibility to reduce the amount of the primary coagulant at the same time keeping the removal to be in optimum may be a good strategy to reduce the operation cost. There might be another coagulant aid for example the natural clay of Bentonite to reduce the cost. The initial stage is to determine the Bentonite dosage and mixture ratio to be used with Chitosan. Coagulation of Chitosan-Bentonite had successfully removed the turbidity with the efficiency of 97%. The coagulants performed well when Chitosan-Bentonite ratio is 30:70 at concentration of 1000mg/l

scholarly journals Development of Bench Scale Water Treatment Unit for the Treatment of Medium Turbid Water: The Use of Natural Coagulant

2021 ◽  
Vol 7 (1) ◽  
pp. 1001-1009
Author(s):  
Jezhi Paul Yero ◽  
◽  
Idris Misau Muhammad ◽  
Adamu Mohammad Bello ◽  
Abdulwadud Abdulkarim Yusuf ◽  
...  
Keyword(s):  
Water Treatment ◽  
Water Purification ◽  
Pipe Flow ◽  
Total Coliform ◽  
Coliform Bacteria ◽  
Turbid Water ◽  
Balanites Aegyptiaca ◽  
Treatment Unit ◽  
Natural Coagulant ◽  
Bench Scale

Water purification is a process used to enhance water quality and make it more acceptable for specific end-use. The rising increase for portable drinking water has made natural coagulant application for water purification a welcome development. Most reported researches were on the use of natural coagulants in a laboratory batch scale. Because of those above, a bench-scale laboratory study was carried out on the application of Balanites Aegyptiaca seed as a natural coagulant. The outcome showed its usefulness toward water purification. This paper reported the developed bench-scale water treatment plant's performance utilising Balanites Aegyptiaca seed stock solution and the powdered kennel as bio-coagulant. Some design equations were adopted. The treatment units considered include coagulation/flocculation, sedimentation, and filtration. The total tank design capacity was 20 litres with the overflow area's actual size for sedimentation of 7.46 litres. 0.5 Hp electric motor with a speed of 600 rpm and a speed gear drop of 120 rpm were selected. 0.0127 m pipe flow line diameter connecting the tanks with a corresponding pipe flow velocity of 0.108 m/s was obtained from the design. However, in both the coagulation, sedimentation and filtration units, the material balance obtained showed a steadiness in the material flow across sedimentation and filtration units. However, among the parameters tested in the raw turbid water, the turbid water revealed turbidity of 514 NTU, the colour of 5600 CTU, the conductivity of 276 µs/cm, pH of 7.10 and total coliform bacteria count of 85 CFU/100 mL which were above the recommended set standard of WHO and NIS. The result of the treated water using the stock solution and the powdered kennel (bio-coagulant) on the developed water treatment unit showed a remarkable reduction in the tested parameters in the raw turbid water used for the treatment process. Total coliform count reduces from 85 CFU/100 ml to 10 CFU/ml in both cases. It was observed that conductivity increases after the treatment, but other inorganic constituents reduce significantly though not to WHO and NIS's recommended set standard. The 0-dosage treatment conducted also showed a reduction in all the tested parameters.

Fouling Is the Beginning: Upcycling Biopolymer-Fouled Substrates for Fabricating High-Permeance Thin-Film Composite Polyamide Membranes

2020 ◽  
Author(s):  
Ruobin Dai ◽  
Hongyi Han ◽  
Tianlin Wang ◽  
Jiayi Li ◽  
Chuyang Y. Tang ◽  
...  
Keyword(s):  
Thin Film ◽  
High Pressure ◽  
End Of Life ◽  
Water Purification ◽  
Low Pressure ◽  
Polymeric Membranes ◽  
Membrane Recycling ◽  
Film Composite ◽  
Thin Film Composite ◽  
First Time

Commercial polymeric membranes are generally recognized to have low sustainability as membranes need to be replaced and abandoned after reaching the end of their life. At present, only techniques for downcycling end-of-life high-pressure membranes are available. For the first time, this study paves the way for upcycling fouled/end-of-life low-pressure membranes to fabricate new high-pressure membranes for water purification, forming a closed eco-loop of membrane recycling with significantly improved sustainability.

DISINFEKSI UNTUK PROSES PENGOLAHAN AIR MINUM

2018 ◽  
Vol 3 (1) ◽  
Author(s):  
Nusa Idaman Said
Keyword(s):  
Drinking Water ◽  
Water Purification ◽  
Distribution System ◽  
Residual Effect ◽  
Drinking Water Treatment ◽  
Disinfection Byproducts ◽  
Water Disinfection ◽  
Pathogenic Microorganisms ◽  
Microbiological Contamination ◽  
Disinfection Process

Water disinfection means the removal, deactivation or killing of pathogenic microorganisms. Microorganisms are destroyed or deactivated, resulting in termination of growth and reproduction. When microorganisms are not removed from drinking water, drinking water usage will cause people to fall ill. Chemical inactivation of microbiological contamination in natural or untreated water is usually one of the final steps to reduce pathogenic microorganisms in drinking water. Combinations of water purification steps (oxidation, coagulation, settling, disinfection, and filtration) cause (drinking) water to be safe after production. As an extra measure many countries apply a second disinfection step at the end of the water purification process, in order to protect the water from microbiological contamination in the water distribution system. Usually one uses a different kind of disinfectant from the one earlier in the process, during this disinfection process. The secondary disinfection makes sure that bacteria will not multiply in the water during distribution. This paper describes several technique of disinfection process for drinking water treatment. Disinfection can be attained by means of physical or chemical disinfectants. The agents also remove organic contaminants from water, which serve as nutrients or shelters for microorganisms. Disinfectants should not only kill microorganisms. Disinfectants must also have a residual effect, which means that they remain active in the water after disinfection. For chemical disinfection of water the following disinfectants can be used such as Chlorine (Cl2),  Hypo chlorite (OCl-), Chloramines, Chlorine dioxide (ClO2), Ozone (O3), Hydrogen peroxide etch. For physical disinfection of water the following disinfectants can be used is Ultraviolet light (UV). Every technique has its specific advantages and and disadvantages its own application area sucs as environmentally friendly, disinfection byproducts, effectivity, investment, operational costs etc. Kata Kunci : Disinfeksi, bakteria, virus, air minum, khlor, hip khlorit, khloramine, khlor dioksida, ozon, UV.

Sign in / Sign up

Export Citation Format

Share Document