Using Acid Mine Water for Removal of Phosphates from Sewage Effluent

1983 ◽  
Vol 15 (2) ◽  
pp. 155-167
Author(s):  
P H van der Merwe ◽  
J P Maree ◽  
N D Basson
Keyword(s):  
Mine Water ◽  
Mine Drainage ◽  
Iron Phosphate ◽  
Phosphate Removal ◽  
Sewage Effluent ◽  
Acid Mine Water ◽  
High Iron Content ◽  
Sewage Purification ◽  
Ph Increase ◽  
The Cost

An experiment was carried out at the Rondebult sewage purification works, regarding the use of underground mine water with a high iron content for phosphate removal from sewage effluents, to comply with a limit of 1 mg/ℓ soluble orthophosphates in the effluent. The theory of iron phosphate precipitation is discussed and reference made to phosphate removal plants in Wisconsin, U.S.A. Iron and aluminium salts did not seem to harm biological life on the filter. The dosing of mine drainage appeared to inhibit nitrification, reduce the pH increase through the filters, increase TDS by about 500 mg/ℓ, but an equivalent dosage of 20 mg/ℓ Fe maintained the final P below 1 mg/ℓ at a cost of 0,1 c/m3, one-tenth of the cost if chemicals had been used.

scholarly journals Removal of Metals by Sulphide Precipitation Using Na2S and HS−-Solution

2020 ◽  
Vol 4 (3) ◽  
pp. 51
Author(s):  
Hanna Prokkola ◽  
Emma-Tuulia Nurmesniemi ◽  
Ulla Lassi
Keyword(s):  
Mine Water ◽  
Mine Drainage ◽  
Anaerobic Treatment ◽  
Reduction Reaction ◽  
Sulphate Reduction ◽  
Acidic Mine Drainage ◽  
Acid Mine Water ◽  
Metal Hydroxides ◽  
Sulphide Precipitation ◽  
Ph Dependent

Precipitation of metals as metal sulphides is a practical way to recover metals from mine water. Sulphide precipitation is useful since many metals are very sparingly soluble as sulphides. Precipitation is also pH dependent. This article investigates the precipitation of metals individually as sulphides and assesses which metals are precipitated as metal hydroxides by adjustment of the pH. The precipitation of different metals as sulphides was studied to determine the conditions under which the HS− solution from the sulphate reduction reaction could be used for precipitation. H2S gas and ionic HS− produced during anaerobic treatment could be recycled from the process to precipitate metals in acidic mine drainage (AMD) prior to anaerobic treatment (Biological sulphate reduction), thereby recovering several metals. Precipitation of metals with HS− was fast and produced fine precipitates. The pH of acid mine water is about 2–4, and it can be adjusted to pH 5.5 before sulphide precipitation, while the precipitation, on the other hand, requires a sulphide solution with pH at 8 and the sulphide in HS− form. This prevents H2S formation and mitigates the risk posed from the evaporation of toxic hydrogen sulphur gas. This is a lower increase than is required for hydroxide precipitation, in which pH is typically raised to approximately nine. After precipitation, metal concentrations ranged from 1 to 30 μg/L.

scholarly journals Phytoremediation and Nanoremediation : Emerging Techniques for Treatment of Acid Mine Drainage Water

2018 ◽  
Vol 3 (2) ◽  
pp. 190 ◽  
Author(s):  
Pratyush Kumar Das
Keyword(s):  
Acid Mine Drainage ◽  
Mine Water ◽  
Mine Drainage ◽  
Anthropogenic Activities ◽  
Drainage Water ◽  
Environmental Pollutant ◽  
Water Drainage ◽  
Mining Sites ◽  
Acid Mine ◽  
The Cost

<p>Drainage from mining sites containing sulfur bearing rocks is known as acid mine drainage (AMD). Acid mine drainage water is a serious environmental pollutant that has its effects on plants, animals and microflora of a region. Mine water drainage mainly occurs due to anthropogenic activities like mining that leave the sulfur bearing rocks exposed. This drainage water poses as a potent soil, water and ground water pollutant. Although a lot of remediation measures have been implemented in the past but, none of them have been able to solve the problem completely. This review intends to focus on new emerging and better techniques in the form of phytoremediation and nanoremediation for treatment of acid mine drainage water. Besides, the review also gives more importance to the phytoremediation technique over nanoremediation because of the cost effectiveness and eco-friendly nature of the first and the nascent status of the latter. A hypothetical model discussing the use of hyperaccumulator plants in remediation of acid mine water has been proposed. The model also proposes natural induction of the phytoremedial ability of the plants involved in the remediation process. The proposed model assisted by inputs from further research, may be helpful in proper treatment of acid mine drainage water in the near future.</p>

scholarly journals EFISIENSI SISTEM LAHAN BASAH BUATAN ALIRAN PERMUKAAN DENGAN VARIASI DEBIT DALAM MENYISIHKAN MANGAN PADA AIR ASAM TAMBANG

2020 ◽  
Vol 6 (1) ◽  
Author(s):  
Nopi Stiyati Prihatini ◽  
Chairul Abdi ◽  
Yudha Ajie Pratama ◽  
Ihsan Noor
Keyword(s):  
Acid Mine Drainage ◽  
Constructed Wetland ◽  
Mine Drainage ◽  
Ph Value ◽  
Surface Flow ◽  
Acid Mine Water ◽  
Acid Mine ◽  
Water Ph ◽  
Ph Increase ◽  
High Concentrations

Terbentuknya air asam tambang  (AAT) merupakan salah satu dampak dari adanya aktifitas pertambangan. Air asam tambang memiliki ciri pH asam berkisar antara 3-5, warna air kuning kemerahan, dengan konsentrasi besi (Fe) dan mangan (Mn) yang tinggi. Penyisihan Mn menjadi tantangan tersendiri karena mangan hanya dapat disisihkan jika konsentrasi Fe AAT kurang dari 5 mg/L. Teknologi yang kini dikembangkan untuk menyisihkan Mn air asam tambang adalah sistem lahan basah buatan (LBB). Kinerja LBB dipengaruhi oleh debit AAT. Untuk mengetahui efesiensi penyisihan mangan (Mn) dan nilai pH pada LBB, maka pada penelitian ini digunakan Lahan Basah Buatan Aliran Permukaan (LBB-AP) berdimensi 150cm x 50 cm x 75 cm beraliran kontinyu dengan variasi debit. Pada penelitian ini akan divariasi debit AAT yaitu D0 7,1 mL/menit; D1 8,8 mL/meni; D2 10,5 mL/menit, dan D3 12,2 mL/menit. Hasil penelitian menunjukkan peningkatan pH terbaik pada D0 7,1 mL/menit periode ke 4 dengan nilai pH 4,3. Kemampuan penyisihan Mn terbaik pada LBB D0 7,1 mL/menit periode ke 1 sebesar 3,3 mg/L dengan efisiensi sebesar 62%. Kata Kunci : air asam tambang, lahan basah buatan aliran permukaan, mangan, variasi debit. The formation of acid mine drainage (AAT) is one of the impacts of mining activities. Acid mine water has a characteristic low water pH ranging from 3-5, the color of reddish-yellow water, and has high concentrations of iron (Fe) and manganese (Mn). Mn removal is a challenge because manganese can only be removed if the concentration of Fe AAT is less than 5 mg / L. One of the technologies that can be used to remove Mn from acid mine drainage is the constructed wetland system (CW). CW performance is influenced by AAT debits. To determine the efficiency of removal of manganese (Mn) and the pH value in CW, then in this study used Surface Flow Constructed Wetland (SFCW) with dimensions of 150cm x 50 cm x 75 cm with the continuous flow with variations in debit. In this study, AAT debit will be varied, namely D0 7.1 mL / min; D1 8.8 mL / min; D2 10.5 mL / min, and D3 12.2 mL / min. The results showed the best pH increase at CW D0 7.1 mL/min for the 4th period with a pH value of 4.3. The best Mn removal ability at CW D0 7.1 mL/min in the first period was 3.3 mg / L with an efficiency of 62%. Keywords: Acid mine drainage, Debit variation, Manganese, Surface flow Constructed Wetland.

scholarly journals KAJIAN PENANGGULANGAN AIR ASAM TAMBANG PADA SALAH SATU PERUSAHAAN PEMEGANG IJIN USAHA PERTAMBANGAN DI DESA LEMO, KABUPATEN BARITO UTARA, KALIMANTAN TENGAH

2016 ◽  
Vol 12 (1) ◽  
pp. 50
Author(s):  
Susan Nadya Irawan ◽  
Idiannor Mahyudin ◽  
Fakhrur Razie ◽  
Susilawati Susilawati
Keyword(s):  
Acid Mine Drainage ◽  
Mine Water ◽  
Mine Drainage ◽  
Research Area ◽  
Low Ph ◽  
Test Results ◽  
Acidic Water ◽  
Acid Mine Water ◽  
Acid Mine ◽  
Dry Cover

This study aims to know the factors that cause the formation of Acid Mine Water, to analyze the methods of prevention of acid mine drainage has been running effectively, to analyze how to prevent the formation of acid mine water at the research area. This research was conducted atLemovillage,North Barito Regency. These results indicate the analysis of water quality in the company with an indication acidic low pH values and high metal values. It is supported by soil pH test results showed low pH, especially on the layer in direct contact or close to coal. Sources of acid mine drainage at the company are from the oxidation of water and oxygen on the wall of rock at pit, water from the dumping area, water flowing from the temporary stockpile into the settling pond 2. From these, we can conclude the results. Recommendations prevention of acid mine drainage can be done by moving the location of the temporary stockpile in accordance with, more effective functioning of sump, controlling the movement of acidic water that has formed, accommodate and neutralize the acidic water that has formed, forming a layer of dry cover, separating the flow of water is not acidic and acidic

Treatment of Acid Mine Drainage Water Using Fly Ash and Water Softening Sludge

1991 ◽  
Vol 245 ◽  
Author(s):  
Asmare Atalay ◽  
Srinivas Chaluvadi ◽  
Joakim G. Laguros ◽  
Jerry J. Black
Keyword(s):  
Fly Ash ◽  
Acid Mine Drainage ◽  
Mine Water ◽  
Environmental Protection Agency ◽  
Mine Drainage ◽  
Abandoned Mines ◽  
Water Quality Criteria ◽  
Water Softening ◽  
Acid Mine Water ◽  
Acid Mine

ABSTRACTAcid mine drainage (AMD) is being recognized as a major pollution source to surface water. Heavy trace metals emanating from abandoned mines are continuously being released and contaminating surrounding lakes and streams. The potential for utilizing fly ash and water softening sludge (WSS) as buffering and adsorption media for AMD water was assessed. The results indicated that AMD water treated with fly ash either met or exceeded the U.S. Environmental Protection Agency water quality criteria for effluent standards for total iron, manganese, suspended solids, and pH. The optimum dosage of fly ash and sludge needed for treating the acid mine water from Picher field, an abandoned lead and zinc mine in Oklahoma, has been determined. It was observed that each had better than 90 percent efficiency for removal of heavy metals from the AMD water. The combined use of fly ash and WSS was also investigated, but there was no significant improvement compared to using fly ash alone. In general fly ash had a greater buffering capacity to treat acid mine water than did WSS. Consequently, fly ash can be used to treat AMD water and minimize its environmental impact.

Planning for Reuse. Developing a Strategy for the Northern Territory, Australia

1991 ◽  
Vol 24 (9) ◽  
pp. 31-43 ◽  
Author(s):  
M. D. Burgess
Keyword(s):  
Potable Water ◽  
Cost Management ◽  
Sewage Treatment ◽  
Northern Territory ◽  
Sewage Effluent ◽  
Cost Benefits ◽  
Management Procedures ◽  
Marketing Activities ◽  
Harsh Climate ◽  
The Cost

A harsh climate, extended dry periods and relatively expensive water resources underly the potential for effluent reuse in the Northern Territory, Australia. The cost of supplying potable water and the potential offsetting effects of utilising sewage effluent are reviewed. The need to firmly establish the true cost to the community of different supply options is identified. Major cost benefits accrue where reuse will enable deferment of either significant potable source augmentation or sewage treatment works upgrading and where horticultural prospects are good at a reuse site close to the treatment works. An overall strategy plan for increasing the potential of reuse is described. This plan includes firm cost management procedures, marketing activities, appropriate land planning measures and a commitment to research and development.

Sign in / Sign up

Export Citation Format

Share Document