scholarly journals ANALISIS EKO-EFISIENSI DAUR ULANG AIR LIMBAH DI PT. CHEMCO HARAPAN NUSANTARA

2020 ◽  
Vol 14 (2) ◽  
pp. 78-87
Author(s):  
Nisa Nurhidayanti
Keyword(s):  
Waste Water ◽  
Wastewater Treatment ◽  
Production Process ◽  
Wastewater Treatment Plant ◽  
Treatment Plant ◽  
Water Treatment Plant ◽  
Process Water ◽  
Clean Water ◽  
Production Processes ◽  
Wastewater Recycling

Abstrak - PT. Chemco Harapan Nusantara (PT CHN) membutuhkan air bersih dalam jumlah besar untuk digunakan sebagai air proses dalam kegiatan proses produksi. Adapun total kebutuhan air bersih untuk semua proses produksi yaitu sebanyak 10.450 m3/ bulan. PT CHN dapat menghasilkan produk yang bernilai jual dari penggunaan air bersih tersebut. Di samping itu juga menghasilkan air limbah yang dapat mencemari lingkungan. Tujuan dari penelitian ini adalah untuk menerapkan metode daur ulang air limbah pada PT CHN sehingga dapat mengurangi dampak buruk bagi lingkungan akibat pembuangan air limbah dan menghasilkan penghematan secara ekonomi terutama pada saat Pandemi Covid19 ini. Penerapan dari metode tersebut dilakukan dengan cara mengolah air limbah di dalam instalasi pengolahan air limbah, kemudian mengolah kembali air tersebut di dalam instalasi pengolahan air bersih. Air olahan yang diperoleh kemudian di distribusikan ke masing-masing proses produksi pemakai air bersih. Metode yang digunakan dalam penelitian ini adalah dengan wawancara dan survei secara langsung di lokasi kemudian menganalisis hasil penelitian dengan teknik analisa data coding, entering, cleaning, display dan analyzing. Berdasarkan hasil penelitian menunjukkan bahwa penerapan metode daur ulang air limbah mampu mengubah seluruh air limbah menjadi air bersih yang dapat digunakan untuk proses produksi , sehingga tidak mencemari lingkungan. Hal tersebut terbukti bahwa pada prosesnya seluruh air limbah dimasukkan ke dalam instalasi pengolahan air limbah yang kemudian diolah lagi di WTP dan air hasil olahan dari WTP tersebut digunakan kembali sebagai process water. Penerapan metode daur ulang air limbah yang dilakukan oleh PT CHN juga dapat menguntungkan secara ekonomi yaitu dengan dapat mengurangi pemakaian air WTP Jababeka sebesar 77,5 %, sehingga mampu menghemat biaya pengeluaran pembelian air sebesar Rp 99.187.652 /bulan. Abstract - PT. Chemco Harapan Nusantara (PT CHN) requires large amounts of clean water to be used as process water in production process activities. The total need for clean water for all production processes is 10.450 m3 / month. PT CHN can produce products of value from the use of clean water. Besides that, it also produces waste water which can pollute the environment. The purpose of this research is to apply the wastewater recycling method at PT CHN so as to reduce adverse environmental effects due to waste water disposal and generate economic savings, especially during the Covid Pandemic19. The application of this method is done by treating wastewater in a wastewater treatment plant, then reprocessing the water in a clean water treatment plant. The processed water obtained is then distributed to each of the clean water user production processes. The method used in this study is to interview and survey directly on site and then analyze the results of research with data analysis techniques coding, entering, cleaning, display and analyzing. Based on the results of the study showed that the application of the wastewater recycling method is able to convert all wastewater into clean water that can be used for the production process, so it does not pollute the environment. This is evident that in the process all wastewater is put into a wastewater treatment plant which is then treated again at the WTP and the treated water from the WTP is reused as process water. The application of the wastewater recycling method conducted by PT CHN can also be economically profitable, namely by being able to reduce the use of Jababeka's WTP water by 77,5%, thereby being able to save on the cost of water purchase expenses of Rp 99.187.652 / month.

scholarly journals Reabilitation of a wastewater treatment plant – possible environment impact

2017 ◽  
Vol 19 (1) ◽  
pp. 65-78
Author(s):  
Mădălina Stănescu ◽  
Constantin Buta ◽  
Geanina Mihai
Keyword(s):  
Waste Water ◽  
Wastewater Treatment ◽  
Water Treatment ◽  
Wastewater Treatment Plant ◽  
Waste Water Treatment ◽  
Treatment Plant ◽  
Water Treatment Plant ◽  
Waste Water Treatment Plant ◽  
Environment Impact ◽  
Operational Phase

Abstract Romania, has declared, by the Governmental Decision nr.352/2005, all its territory as a sensitive area. This implies that, for all urban agglomerations larger than 10.000 population equivalent waste water treatment plants (WWTP) with nutrient removal must be built or upgraded. This paper presents the results regarding the possible environmental impacts expected from the project for construction of waste water treatment plant in the City of Vaslui, with main focus on surface water. This research study includes assessment methodology, project description regarding the rehabilitation and extension of the Vaslui waste water treatment plant, data related to water resources, impact assessment on water and appropriate mitigation measures. The assessment of the impacts has been performed for the construction and operational phase of the wastewater treatment plant. The construction phase was subdivided into several phases, while in the operational phase the impacts are analyzed following the line for treatment of the wastewater and effluent production, the line for sludge production and drying process, sludge disposal in safety conditions considering the provisions of 86/278/EEC Directive and the line for biogas utilization.

DESIGN PLANNING WASTEWATER TREATMENT PLANT OF NATA DE COCO INDUSTRY WITH THE ACTIVATED SLUDGE PROCESS

2016 ◽  
Vol 9 (2) ◽  
Author(s):  
Dinda Rita K. Hartaja ◽  
Imam Setiadi
Keyword(s):  
Waste Water ◽  
Wastewater Treatment ◽  
Activated Sludge ◽  
Waste Water Treatment ◽  
Treatment Plant ◽  
Water Treatment Plant ◽  
Appropriate Technology ◽  
Waste Water Treatment Plant ◽  
Activated Sludge Process ◽  
High Level

Generally, wastewater of nata de coco industry contains suspended solids and COD were high, ranging from 90,000 mg / l. The high level of of the wastewater pollutants, resulting in nata de coco industry can not be directly disposed of its wastewater into the environment agency. Appropriate technology required in order to process the waste water so that the treated water can meet the environmental quality standards that are allowed. Designing the waste water treatment plant that is suitable and efficient for treating industrial wastewater nata de coco is the activated sludge process. Wastewater treatment using activated sludge process of conventional (standard) generally consists of initial sedimentation, aeration and final sedimentation.Keywords : Activated Sludge, Design, IPAL

scholarly journals Quality Assessment of Full-Scale Municipal Wastewater Treatment Plant Consisting UASB Reactors and Polishing Ponds During its Start-Up Phase in India

2016 ◽  
Vol 11 (1) ◽  
pp. 47-55
Author(s):  
Nadeem Khalil ◽  
Tarique Ahmad
Keyword(s):  
Waste Water ◽  
Wastewater Treatment ◽  
Quality Assessment ◽  
Wastewater Treatment Plant ◽  
Treatment Plant ◽  
Municipal Sewage ◽  
Anaerobic Sludge ◽  
General Hypothesis ◽  
Start Up ◽  
Uasb Reactors

Amongst the technologies available, the up flow anaerobic sludge blanket (UASB) process has been one of the most widely applied methods for municipal waste water treatment especially in countries of warm climatic conditions like India. However, past about one decade has witnessed rapid decline in the UASB popularity and its implementation. There has been criticism from various sections on the performance of UASB reactors for not complying with the prescribed discharge standards. It is a general hypothesis that the UASB reactors are not meant for diluted waste water like municipal sewage when typically the BOD is less than 150 mg/l, COD 250 mg/l and sulphates are more than 150mg/l. An attempt has been made through this study to investigate the reasons on the basis of quality assessment and field observations on UASB reactors and it’s post-treatment of a newly commissioned (start-up) municipal (sewage) wastewater treatment plant commonly called ‘STP’ having capacity of 14 million litres per day (MLD). Study was aimed to know the gaps during the commissioning stage which could be related to poor removal efficiencies. This paper briefly discusses some issues related to operation and maintenance of the UASB plants with purpose for improvements.

scholarly journals Percentage of the population connected to a wastewater treatment plan (2008-2012)

2017 ◽  
Author(s):  
Gabin Archambault
Keyword(s):  
Waste Water ◽  
Wastewater Treatment ◽  
Latin America ◽  
Wastewater Treatment Plant ◽  
Treatment Plan ◽  
Sewage Treatment ◽  
Treatment Plant ◽  
The Pacific ◽  
The Caribbean ◽  
Water Waste

This layer represents the percentage of the population who is connected to a wastewater treatment plan for 36 countries (29 in Europe and North America, 3 in Asia and the Pacific, 3 in Latin America and the Caribbean, and 1 in Africa). However, data are available from 1975 to 2014 for 37 countries. This indicator presents sewage treatment connection rates, i.e. the percentage of the population connected to a wastewater treatment plant. “Connected” means actually connected to a wastewater treatment plant through a public sewage network. It does not take into account independent private facilities, used where public systems are not economic. For more information, visit the OECD database: https://data.oecd.org/water/waste-water-treatment.htm Waste

UNJUK KERJA DAN EFISIENSI IPAL INDUSTRI BATIK CETAK DI MAKAMHAJI, SUKOHARJO DENGAN PROSES BAR SCREEN, SEDIMENTASI, DAN PROSES KOAGULASI-FLOKULASI TERHADAP PENURUNAN PARAMETER COD, BOD DAN LOGAM BERAT Cr

EKUILIBIUM ◽  
2011 ◽  
Vol 10 (1) ◽  
Author(s):  
Muljadi Muljadi
Keyword(s):  
Waste Water ◽  
Heavy Metals ◽  
Wastewater Treatment ◽  
Water Treatment ◽  
Waste Water Treatment ◽  
Treatment Plant ◽  
Water Treatment Plant ◽  
Waste Water Treatment Plant ◽  
Maximum Efficiency ◽  
The Village

<p><strong><em>Abstract</em></strong><strong>: </strong><em>Batik industry in general is equipped with the Waste Water Treatment Plant (WWTP) used for wastewater treatment in order not to endanger the environment. Printed batik industry in Makamhaji, Sukoharjo equipped Wastewater Treatment Plant (WWTP) with the bar screen, sedimentation and coagulation-flocculation for wastewater treatment in the process is simple and economical to manufacture.The research objective was to determine the magnitude of performance and efficiency of industrial WWTP batik print with the bar screen, sedimentation, and the process of coagulation - flocculation of the reduction parameters COD, BOD and heavy metals Cr. The method used is an experimental method is to perform experiments on WWTP wastewater treatment industry in the village batik print Butulan Makamhaji Sukoharjo district.Of research that has been made </em><em></em><em>known that the greater efficiency resulting from the units of the performance of the unit means that the better. And obtain maximum efficiency of the reduction parameters of COD, BOD is the bar screen unit for 37.61% and 27.22%. As for the maximum efficiency of the reduction of Cr metal pollutant parameters are in units of coagulation-flocculation of 23.66%.</em></p><p><em> </em><strong><em>Keywords</em></strong><em>: COD, BOD, heavy metals chromium, Efficiency WWTP, WWTP Performance</em></p>

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