Low-Energy Desalination Technologies for Treating Mining Effluents 

2021 ◽  
Author(s):  
Georgios Kolliopoulos
Keyword(s):  
Aquatic Ecosystems ◽  
Mine Drainage ◽  
High Salinity ◽  
Industrial Effluents ◽  
Clean Water ◽  
Environmental Footprint ◽  
Sequence Of Events ◽  
The People ◽  
Tailings Ponds

<p>As our societies evolved and the quality of primary resources deteriorated, water use in process circuits has led to the generation of ever-increasing volumes of contaminated effluents. Despite the efforts for water recycling in process circuits, desalination technologies fail to treat solutions of high salinity, due to their focus on dilute solutions, such as seawater. The lack of energy efficient effluent desalination technologies leaves vast volumes of aqueous residues sitting in tailings ponds. This practice often allows oxygen to dissolve in water and oxidize certain elements, which leads to the generation of acid in a sequence of events known as acid mine drainage. Uncontrolled discharges resulting from such mining wastes have detrimental effects on the nearby water quality and aquatic ecosystems as well as on the health of the people of the local communities. In this work, we report on novel freeze desalination processes that can recover clean water from such industrial effluents in the form of ice at significantly lower energy compared to state-of-the-art desalination processes. Therefore, the developed technologies promise to economically and efficiently reduce the water-consumption related environmental footprint of the processing industry, the risks and liabilities associated with tailings ponds, as well as to secure access to safe clean water for nearby communities.</p>

scholarly journals Water, Sediment and Macrophyte Quality of Some Shrimp Culture Ponds and Freshwater Ecosystems of Koyra

2012 ◽  
Vol 41 (1) ◽  
pp. 35-41 ◽  
Author(s):  
Abdullah Harun Chowdhury ◽  
Roxana Ahmed
Keyword(s):  
Aquatic Ecosystems ◽  
Aquatic Macrophytes ◽  
High Salinity ◽  
Freshwater Ecosystems ◽  
Shrimp Culture ◽  
Physicochemical Conditions

A total of 29 genera belonging to 24 families of aquatic macrophytes were recorded. Among these, 25 species were recorded from the freshwater aquatic ecosystems, 4 species from both the shrimp culture ponds and freshwater aquatic ecosystems and only one from the shrimp culture ponds. The physicochemical conditions of both the habitats indicate that very poor number of macrophytes can grow in the shrimp culture ponds due to high salinity of water and soil. Low population and abundance indicate that the macrophytes are in alarming condition in Koyra due to increasing salinity. DOI: http://dx.doi.org/10.3329/bjb.v41i1.11080 Bangladesh J. Bot. 41(1): 35-41, 2012 (June)

scholarly journals Design and application of water treatment technology for Karya Makmur Hamlet, Batuah Village, Loa Janan District, Kutai Kartanegara

2021 ◽  
Vol 6 (12) ◽  
pp. 2232-2238
Author(s):  
Sirajuddin Sirajuddin ◽  
Firman Firman ◽  
Harjanto Harjanto ◽  
Alwathan Alwathan ◽  
Sitti Sahraeni
Keyword(s):  
Water Treatment ◽  
Clean Water ◽  
Treatment Technology ◽  
Water Treatment Process ◽  
The People ◽  
Quality Of Water ◽  
Water Treatment Technology ◽  
The Government ◽  
And Training

The clean water service of PDAM Loa Janan Sub-district has not yet reached all villages, including Batuah Village, which has not yet received clean water services from the government. To meet the need for clean water for the people of Batuah Village, they use drilled well water, dug water that does not meet health standards because it contains heavy metals that are toxic (poisonous). This activity aims to meet the needs of clean water for the community in Batuah Village. Activities start from identifying the potential and quality of raw water sources which include physical, chemical and biological parameters, designing and manufacturing clean water treatment units as well as testing the quality of water products produced, socialization and training to partner groups on the process of operating clean water treatment technology and monitoring the sustainability of the water treatment process after being managed independently by the partner group.

scholarly journals Tinjauan Proses Pengolahan Air Baku (Raw Water) Menjadi Air Bersih Pada Sarana Penyediaan Air Minum (Spam) Kecamatan Rangsang Kabupaten Kepulauan Meranti

2018 ◽  
Vol 18 (1) ◽  
pp. 1-15
Author(s):  
Harmiyati Harmiyati
Keyword(s):  
Quality Standards ◽  
Clean Water ◽  
Raw Water ◽  
Water Quality Standards ◽  
Treatment Processes ◽  
The People ◽  
The Government ◽  
The City ◽  
Water Uses

[ID] Di kabupaten Kepulauan Meranti khususnya Masyarakat Kecamatan Rangsang pada umumnya menggunakan air hujan dan air Sungai sebagai kebutuhan air bersih sehari-hari, jika pada musim kemarau masyarakat pada umumnya sulit mendapatkan air bersih. Dengan adanya Sarana penyediaan air bersih yang dibangun oleh pemerintahan Kabupaten Kepulauan Meranti yaitu Sarana Penyediaan Air Minum (SPAM) ini sangat membantu dalam memenuhi kebutuhan air bersih masyarakat. Dilihat secara warna, air bersih yang di produksi oleh SPAM Kecamatan Rangsang berwarna kecoklatan, dilihat dari segi warna hampir sama dengan air baku SPAM Kecamatan Rangsang tersebut. Pada SPAM Kecamatan Rangsang ini proses pengolahan air bersih menggunakan metode koagulasi, flokulasi, sedimentasi dan filtrasi. Peneliti mencoba meninjau apakah proses-proses pengolahannya telah sesuai dengan metode yang telah di terapkan, mengetahui kualitas air bersih yang dihasilkan serta mengetahui masalah-masalah yang terdapat pada SPAM Kecamatan Rangsang tersebut. Dari hasil penelitian yang dilakukan untuk pemprosesan air bersih adanya proses yang tidak dilakukan yaitu tidak dilakukan pembubuhan zat Koagulan,  hal tersebut dikarenakan zat-zat Koagulan yang ada di SPAM Kecamatan Rangsang tidak tersedia untuk saat ini. Untuk kualitas air bersih yang di produksi SPAM Kecamatan Rangsang tidak memenuhi standar kualitas air bersih berdasarkan peraturan menteri kesehatan nomor 416 tahun 1990 tentang “syarat-syarat dan pengawasan kualitas air” yaitu air bersih sesuai dengan hasil uji laboratorium dinas kesahatan kota pekanbaru pada tanggal 13 November 2017, serta terdapat beberapa alat yang tidak beroperasi, yaitu rusaknya 1 buah pompa Intake  dan 1 buah pompa distribusi [EN] In the Meranti Islands district, especially in the Subdistrict of Rangsang District, the people generally use rain water and river water as their daily clean water needs, if in the dry season the community in general is difficult to get clean water. With the availability of clean water facilities built by the government of the Meranti Islands Regency, the Drinking Water Supply Facility (SPAM) is very helpful in meeting the community's clean water needs. Viewed in color, the clean water produced by SPAM in the District of Rangsang is brownish in color, in terms of color it is almost the same as the SPAM raw water in the District of Rangsang. At SPAM in the District of Rangsang, the process of treating clean water uses the methods of coagulation, flocculation, sedimentation and filtration. Researchers try to review whether the treatment processes are in accordance with the methods that have been applied, find out the quality of clean water produced and find out the problems found in the SPB Subdistrict. From the results of research conducted for the processing of clean water there is a process that is not done that is not done by adding coagulant substances, it is because the coagulant substances in SPAM Subdistrict, Rangsang District are not available at this time. For the quality of clean water produced by SPAM in the Subdistrict of Rangsang District, it does not meet clean water quality standards based on the Minister of Health Regulation number 416 of 1990 concerning "requirements and quality control of water", which is clean water in accordance with the results of laboratory tests on the city health office Pekanbaru on November 13 2017, and there are some tools that are not operating, namely the damage of 1 Intake pump and 1 distribution pump.

Implementation of electre methods in determining for recipient candidate for pamsimas program in district pringsewu

2018 ◽  
Vol 7 (2.27) ◽  
pp. 244
Author(s):  
Rita Irviani ◽  
Siti Mukodimah ◽  
Muhammad Muslihudin ◽  
Trisnawati .
Keyword(s):  
Drinking Water ◽  
Clean Water ◽  
Community Based ◽  
Sanitation Services ◽  
The World Bank ◽  
The People ◽  
Electre Method ◽  
The Government ◽  
One Year

Community-based Water Drinking Supply and Sanitation is one of the programs implemented by the Government of Indonesia with the support of the World Bank. One of the government targets under the RPJPN 2015-2019 is that Indonesia can provide drinking water and sanitation services for the people of Indonesia. The ELECTRE method is chosen because it is able to select the best alternative from the existing alternatives. This research used seven criteria as reference in determining for recipient candidate for PAMSIMAS program. The number of incidents of diarrheal diseases in one year (number of incidents), the number of people who have not used safe drinking water (individual), the number of people who have not used the toilet, the financial ability of the region, the income of the villagers, the distance of the source of clean water from the settlement, the availability of clean water. In addition to the criteria is also used the quality of the criteria to determine the best alternative and from the calculation of the alternative obtained the greatest value contained in A4 with value E = 4 and alternative A5 with the value E =4 thereby alternatives 4 and 5 are viable alternatives to the prospective recipient villages of the PAMSIMAS program in Pringsewu district.  

High Load Process Using Yeasts for Vinasses of Beet Molasses Treatment

1987 ◽  
Vol 19 (1-2) ◽  
pp. 11-21 ◽  
Author(s):  
D. Malnou ◽  
A. Huyard ◽  
G. M. Faup
Keyword(s):  
Activated Sludge ◽  
High Performance ◽  
High Salinity ◽  
Industrial Effluents ◽  
High Load ◽  
New Techniques ◽  
Beet Molasses ◽  
Very High ◽  
Interesting Alternative

Bulky plants are required to treat industrial effluents using conventional processes (settlement tanks, activated sludge, etc.). New techniques are being sought to reduce the size of the plants. The use of microorganisms, such as yeasts, in aerated reactors makes it possible to process effluents with very high volumetric loads and to produce a valorizable biomass. Despite their high salinity and COD concentration, yeasts can be used to process sugarbeet molasses liquors with volumetric load exceeding 80 kg COD.m−3.d−1, removing 70 % of the COD. The improvement in the quality of the biomass produced and the design of new types of reactor will allow this high-performance process to be developed into an interesting alternative method of treating concentrated industrial effluents.

scholarly journals PENGOLAHAN AIR PAYAU MENGGUNAKAN TEKNOLOGI MEMBRAN SISTEM OSMOSA BALIK SEBAGAI ALTERNATIF PEMENUHAN KEBUTUHAN AIR MINUM MASYARAKAT KEPULAUAN SERIBU

2018 ◽  
Vol 1 (3) ◽  
Author(s):  
Wahyu Widayat
Keyword(s):  
Drinking Water ◽  
Water Treatment ◽  
Reverse Osmosis ◽  
Brackish Water ◽  
Well Water ◽  
Clean Water ◽  
Small Islands ◽  
The People ◽  
Quality Of Water

Kepulauan seribu (Seribu Archipelago) is one of region of north jakarta, the province of DKI Jakarta Raya which is populated by around 18.000 inhabitants. It consists of 111 small islands. Among them, there are about 11 (eleven) islands are stated as the residential:   P. Untung Jawa, P. Tidung Besar, P. Lancang Besar, P. Panggang, P. Pramuka, P. Kelapa I, P. Kelapa II, P. Harapan, P. Sebira. P. Payung dan P. Pari. P. Panggang and P. Kelapa I are the most populated.In relation to the clean water supply, specifically for drinking water/freshwater, mostly is got from the narrow well, rainfall and some water treatment installations that heve been owned by some islands. However, problem arises when the prolong dry season comes as the quality of water in the narrow well decreases significantly, the well water became brackish. In order to cope this problem, the avaibility of sufficient water treatment installations to process brackish water into freshwater is very important. The water treatment installation with reverse osmosis system is one of the most effective alternative in order to provide the freshwater for the people in the islands. The system has also been aplied sufficiently in several islands, such as P. Kelapa I, P. Tidung, P. Pramuka, P. Untung Jawa, P. Panggang dan P. Harapan Kata Kunci : Pengolahan Air payau, Osmosa balik, Air minum.

Risk Assessment of Chemical Pollution of Industrial Effluents From A Soap Production Plant Located In Bafoussam (Western Region of Cameroon)

2021 ◽  
Author(s):  
Zoyem Gouafo Mathurin ◽  
Talla Pierre Kisito
Keyword(s):  
Drinking Water ◽  
Oxygen Demand ◽  
Industrial Effluents ◽  
Chemical Pollution ◽  
Production Plant ◽  
Limit Values ◽  
The People ◽  
Soap Production ◽  
State Of Affairs

Abstract The MEWOU river, which runs through the town of Bafoussam, is one of the main sources of drinking water and irrigation for the people who live there. It is subject to intense agricultural and industrial activity all along its banks. Soap and refined oil factories generate pollution in the form of liquid effluent which is released without any form of treatment. A total of seven samples were analyzed during the months of March, April and May of the year 2021. The results we obtained were analyzed according to the regulatory requirements recommended by the Guidelines for the quality of drinking water and the Algerian standard relating to the limit values ​​of physicochemical parameters. The results we obtained showed signs of significant pollution in particular: chemical oxygen demand (COD: 125.32-959 mg L-1), 5 days-biochemical oxygen demand (BOD5: 23-99 mg L-1), turbidity (2-520 NTU), TDS (130-13430 mg L-1), Nitrite (4.96-21327.44 mg L-1) and many other parameters greatly exceed those required by the international standard, we have also noted a strong pollution to heavy metals: chromium (35.76- 1381.08 mg L-1), lead (0.21 - 2.49 mg L-1), iron (0.28- 17.82 mg L-1), and cadmium (0 , 03-0.19 mg L-1) which are above the values ​​prescribed by the WHO. These heavily polluted effluents released into the natural environment are harmful to the environment, biodiversity and human health. This state of affairs requires urgent intervention to preserve the ecological balance. Otherwise, it can constitute a risk for public health in the short term by deteriorating the quality of the underground reservoir known as the main source of water supply for the local populations.

scholarly journals Penurunan Bakteri Coli pada Air Sungai Martapura Menggunakan Saringan Arang Sekam Padi

2017 ◽  
Vol 14 (1) ◽  
pp. 391
Author(s):  
Syarifudin A.
Keyword(s):  
Water Quality ◽  
Water Treatment ◽  
River Water ◽  
Quality Standard ◽  
Microbial Pathogens ◽  
Clean Water ◽  
The People ◽  
Class B ◽  
Charcoal Filter

Abstract: The Decrease in the Number of Coli Bacteria in Water of Martapura River Using The Husk Charcoal Filter. The habits of the people along the Martapura river, defecates into the river, causing the river water polluted by Coli bacteria that be able to cause disease. Water treatment is required to improve the water quality of the Martapura river, one of them is using "the husk charcoal filter " to obtain clean water that meets health requirements. This study aimed to analyze the effectiveness of the husk charcoal filter, and determine the thickness of the filter were most effective to decrease the number of coli bacteria in water of Martapura river. In this design, was performed the initial measurements (pretest), performed the treatment and performed the second measurement (posttest), so it could be seen the effectiveness of the treatment. The "husk charcoal filter" was effective to Decrease the Number of Coli Bacteria in the water of Martapura river as much as 69,2% - 99,3%. However, a decrease in the number of coli bacteria still above the standards required by the Water Quality Standard class B, after filtration. Because it still found much bacteria after filtering, it is advisable to boil water to boiling before consumption, because heating is the most effective way to kill microbial pathogens that be able to cause disease. Keywords: Water of Martapura River; coli bacteria; the husk charcoal filter.

UPAYA PENINGKATAN MUTU PENDIDIKAN DI PONDOK PESANTREN HJ. HANIAH MAROS SULAWESI SELATAN

2012 ◽  
Vol 10 (2) ◽  
Author(s):  
Abdul Muin
Keyword(s):  
Qualitative Method ◽  
Healthy Lifestyle ◽  
Boarding School ◽  
Education Quality ◽  
Quality Of Education ◽  
The People ◽  
Interest And Motivation

AbstractThe purpose of this paper is to reveal how the quality of education in this Islamic boarding school is, particularly related to education facilities, curriculum and strategies of education quality improve­ments. This study used the qualitative method. Findings of this study are: first, education infrastructure and facilities are relatively complete and adequate, which are supported by the atmosphere of the Islamic boarding school that is full of simplicity and modesty by habituation in implementing clean and healthy lifestyle. Second, the tafaqquh fi-al din (understanding of religion)-based curriculum compiled by the Islamic boarding school occupies the same degree (equal) to the curriculum prepared by the Ministry of Religious Affairs, so that both tafaqquh fi-al din (understanding of religion) studies and general studi­es have high electability, which is able to increase the quality of education and also generates interest and motivation of the people (parents) to put their children to the Islamic boarding school. Third, education in the Islamic boarding school has a strong independency because it is supported by substantial financial resources.AbstrakTujuan tulisan ini untuk mengungkapkan bagaimana mutu pendidikan di pondok pesantren ini, khususnya berkaitan dengan sarana pendidikan, kurikulum dan sterategi peningkatan mutu pendidik­an. Penelitian ini menggunakan metode kualitatif. Hasil temuan studi ini adalah: Pertama, sarana dan fasilitas pendidikan relatif lengkap dan memadai, ini didukung oleh suasana kehidupan pondok pesan­tren yang penuh kesederhanaan dan kebersahajaan dengan pembiasaan menerapkan pola hidup bersih dan sehat. Kedua, kurikulum yang berbasis tafaqquh fi-al din yang disusun oleh pondok pesantren ini menempati derajat yang sama (equal) dengan kurikulum yang disusun Kementerian Agama, sehinga baik kajian tafaqquh fi al-din maupun pelajaran umum memiliki electabilitas yang tinggi, hal ini mampu meningkatkan mutu pendidikan dan sekaligus membangkitkan animo dan motivasi masyarakat (orangtua) untuk memasukkan anaknya ke pesantren ini. Ketiga, penyelenggaraan pendidikan di pon­dok pesantren ini memiliki kemandirian yang kuat, karena didukung oleh sumber dana yang besar.

DAMPAK PENGELOLAAN SAMPAH PADA KESEHATAN MASYARAKAT DI TPA

2019 ◽  
Vol 5 (2) ◽  
Author(s):  
Emilda Emilda
Keyword(s):  
Public Health ◽  
Hand Hygiene ◽  
Waste Management ◽  
Qualitative Data ◽  
Water Storage ◽  
Health Impact ◽  
Clean Water ◽  
The People ◽  
Clean Environment ◽  
The Impact

The limitations of waste management in the Cipayung Landfill (TPA) causing a buildup of garbage up to more than 30 meters. This condition has a health impact on people in Cipayung Village. This study aims to analyze the impact of waste management at Cipayung Landfill on public health in Cipayung Village, Depok City. The research is descriptive qualitative. Data obtained by purposive sampling. Data was collected by interviews, observation and documentation. Based on interviews with 30 respondents, it was found that the most common diseases were diarrhea, then other types of stomach ailments, subsequent itching on the skin and coughing. This is presumably because the environmental conditions in the form of unhealthy air and water and clean and healthy living behaviors (PHBS) have not become the habit of the people. The results indicated that there were no respondents who had implemented all of these criteria. In general respondents have implemented  3 criteria, namely maintaining hair hygiene, maintaining skin cleanliness, and maintaining hand hygiene. While maintaining clean water storage is the most often overlooked behavior. To minimize this health impact, improvements in waste management in Cipayung landfill are needed along with continuous socialization and education to develop PHBS habits and the importance of maintaining a clean environment.

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