Construction machine scrubbing, water management

Faced with the pollution problem that they generate, the discharge of large volumes of wastewater, to the groundwater table, caused by cleaning operations in the machine scrubbing facilities and construction equipment in the network of workshops of the construction company in La Republic of Cuba. The work for the solution of the proposed problem consists of the projection and execution of an installation, for the sedimentation of clay, dust, stones, heavy metals, as well as swimming fats, as a treatment, for the separation of solids, from the rest of the components of wastewater that result from the scrubbing process of construction equipment. The installation for the recovery of these important volumes of water; which is the essence of this article; its operation is based on the discrimination of waste, by its specific weights, resulting from scrubbing. For the processing of wastewater, a treatment system is conceived, with two multiple tanks placed in “cascades” where the settling of the solids is guaranteed, by undergoing two consecutive filtrations. At the end of the process, clean water is obtained, which will be reused for a new scrubbing, which accumulates in a clear water tank, thereby contributing to the saving of drinking water and energy, so necessary in human activity.

Download Full-text

GOVERNMENT RESPONSIBILITY TO PROTECT PEOPLE’S RIGHTS OVER THE CLEAN WATER

Hang Tuah Law Journal ◽

10.30649/htlj.v1i1.8 ◽

2017 ◽

Vol 1 (1) ◽

pp. 38

Author(s):

Muhammad Nadzir

Keyword(s):

Water Management ◽

Human Life ◽

The State ◽

Responsibility To Protect ◽

Clean Water ◽

State Control ◽

Government Responsibility ◽

The Republic ◽

The Government

Water plays a very important role in supporting human life and other living beings as goods that meet public needs. Water is one of the declared goods controlled by the state as mentioned in the constitution of the republic of Indonesia. The state control over water indicated that water management can bring justice and prosperity for all Indonesian people. However, in fact, water currently becomes a product commercialized by individuals and corporations. It raised a question on how the government responsibility to protect the people's right to clean water. This study found that in normative context, the government had been responsible in protecting the people’s right over the clean water. However, in practical context, it found that the government had not fully protected people's right over clean water. The government still interpreted the state control over water in the form of creating policies, establishing a set of regulations, conducting management, and also supervision.

Download Full-text

Effects of NTA on the Fate of Heavy Metals in Sediments

Water Science & Technology ◽

10.2166/wst.1993.0617 ◽

1993 ◽

Vol 28 (8-9) ◽

pp. 191-194 ◽

Cited By ~ 3

Author(s):

S. L. Lo ◽

L. J. Huang

Keyword(s):

Heavy Metals ◽

Sodium Tripolyphosphate ◽

Equilibrium Concentration ◽

Chelating Agent ◽

Metal Species ◽

Pollution Problem ◽

Trisodium Salt ◽

Major Factors ◽

Apparent Equilibrium ◽

Degradation Time

Sodium tripolyphosphate (STPP), which is widely used as a builder in synthetic detergents, was found as one of the major factors of eutrophication in rivers and lakes. Many countries have used nitrilotriacetate (NTA) in detergents to replace STPP, but it induced another pollution problem. Because NTA is an effective chelating agent, it will dissolve heavy metals from the sediments and affect the fate of metal species in rivers. The purpose of this study is to investigate the effect of the mobilization of heavy metals from sediments by NTA. The experimental results indicated that NTA increases the mobilization of heavy metals as the shaking time increases and reaches an apparent equilibrium concentration after 24–48 hours. Typical results show that using 20mg/l of NTA and shaking time of 6 days, the fraction mobilized is about 8 to 15% for Cu, 1 to 7% for Zn, 7 to 10% for Pb, and 7 to 30% for Cd. Hardness of the water affects the formation of heavy metal-NTA complexes significantly. Biodegradation of the trisodium salt of NTA starts after 6–9 days with degradation time of the metal-NTA complexes decreasing in the order of Cu > Cd > Zn > Pb > Ca.

Download Full-text

ANALISA LOGAM BESI (Fe) DI SUNGAI PASAR DAERAH BELANGWETAN KLATEN DENGAN METODE SPEKTROFOTOMETRI SERAPAN ATOM

Jurnal Ilmiah Manuntung ◽

10.51352/jim.v2i1.44 ◽

2017 ◽

Vol 2 (1) ◽

pp. 39

Author(s):

Rahmi Nurhaini ◽

Arief Affandi

Keyword(s):

Heavy Metals ◽

Sampling Method ◽

Research Result ◽

The Body ◽

Clean Water ◽

Observational Method ◽

The Mean ◽

The Republic

Iron (Fe) is one of many heavy metals that is corrosive resistant, dense, and has a low melting point. If accumulated in the body, the metal can cause some medical conditions, such as irritation to skin and eyes, breathing problems, and in the long term, cancer. This research aims to know generally the spread of metallic iron (Fe) in the river Pasar in Belangwetan, Klaten. This study was conducted using an observational method in which researchers did not examine the effects of interventions. Sampling was done using purposive sampling method taken from three points, namely the upper, middle, lower. Determination of iron levels by Atomic Absorption Spectrophotometer (AAS) obtained a positive result, and the data was processed using SPSS to determine the Mean and Standard Deviation. Of the research result, it could be known the Mean score was 2.33 ppm and SD was 0.0352. The result of this research indicated that the levels of iron in the river Pasar in Belangwetan were 2.33 ppm. It means that the levels violate the regulation of the Minister of Health of the Republic of Indonesia, which is not more than 1mg/L (1ppm) in the clean water

Download Full-text

Use of beetroot fibers to clean water contaminated with heavy metals, to soften hard water, and to desalinate seawater

Toxicological and Environmental Chemistry ◽

10.1080/0277224042000221113 ◽

2004 ◽

Vol 86 (2) ◽

pp. 105-116 ◽

Cited By ~ 2

Author(s):

Jamil Rima ◽

Emile Aoun ◽

Khalil Hanna

Keyword(s):

Heavy Metals ◽

Hard Water ◽

Clean Water

Download Full-text

Newer Approaches in Phytoremediation

Research Anthology on Synthesis, Characterization, and Applications of Nanomaterials ◽

10.4018/978-1-7998-8591-7.ch074 ◽

2021 ◽

pp. 1785-1808

Author(s):

Khushboo Chaudhary ◽

Suphiya Khan ◽

Pankaj Kumar Saraswat

Keyword(s):

Heavy Metals ◽

Plant Growth ◽

Chelating Agents ◽

Plant Growth Promoting Bacteria ◽

Metals Removal ◽

Pollution Problem ◽

The World ◽

Plant Growth Promoting ◽

Growth Promoting

The heavy metal pollution problem is all over the world. Plant-growth-promoting bacteria (PGPB) has transformed heavy metals present in the soil, which removes and minimizes their toxic effects. This chapter highlights the role of plant-growth-promoting bacteria, chelating agents, and nanoparticles for remediation of heavy metals; their mechanism of action; and their applications approach of hyperaccumulation. Therefore, this chapter focuses on the mechanisms by which microorganisms, chelating agents, and nanoparticles can mobilize or immobilize metals in soils and the nano-phytoremediation strategies are addressed for the improvement of phytoextraction as an innovative process for enhancement of heavy metals removal from soil.

Download Full-text

Hybrid Waters: On Water,Nature, and Society

Social Power and the Urbanization of Water ◽

10.1093/oso/9780198233916.003.0012 ◽

2004 ◽

Author(s):

Erik Swyngedouw

Keyword(s):

Water Management ◽

Water Supply ◽

Global Environmental Change ◽

Easy Access ◽

Clean Water ◽

Water Control ◽

Popular Resistance ◽

Global North ◽

The Uk ◽

Nature And Society

In recent years, we have become increasingly aware of the importance of water as a critical good, and questions of water supply, access, and management, both in quantitative and qualitative terms, have become key issues (Gleick 1993; Postel 1992; Stauffer 1998). The proliferating commodification and privatization of water management systems; the combination of Global Environmental Change with increased demands from cities, agriculture, and industry for reasonably clean water; the inadequate access of almost a billion people on the planet to clean water (over half of whom live in large urban centres); the proliferating geopolitical struggle over the control of river basins; the popular resistance against the construction of new megadams; the political struggles around water privatization projects; and many other issues; have brought water politics to the foreground of national and international agendas (Shiklomanov 1990; 1997; Herrington 1996; Roy 2001). In the twentieth century, water scarcity was seen as a problem primarily affecting developing societies (Anton 1993). However, at the turn of the new century, water problems are becoming increasingly globalized. In Europe, the area bordering the Mediterranean, notably Spain, southern Italy, and Greece, is arguably the location in which the water crisis has become most acute, both in quantitative and qualitative terms (Batisse and Gernon 1989; Margat 1992; Swyngedouw 1996a). However, northern European countries, such as the UK, Belgium, and France, have also seen increasing problems with water supply, water management, and water control (Haughton 1996), while transitional societies in eastern Europe are faced with mounting water supply problems (Thomas and Howlett 1993). The Yorkshire drought in England, for example, or the Walloon/Flemish dispute over water rights are illuminating examples of the intensifying conflict that surrounds water issues (Bakker 1999). Cities in the global South and the global North alike are suffering from a deterioration in their water supply infrastructure and in their environmental and social conditions in general (Lorrain 1995; Brockerhoff and Brennan 1998). Up to 50% of urban residents in the developing world’s megacities have no easy access to reasonably clean and affordable water. The myriad socioenvironmental problems associated with deficient water supply conditions threaten urban sustainability, social cohesion, and, most disturbingly, the livelihoods of millions of people (Niemczynowicz 1991).

Download Full-text

Policy development for the reduction of pollution caused by traffic experiences from The Netherlands

Water Science & Technology ◽

10.2166/wst.2004.0191 ◽

2004 ◽

Vol 49 (3) ◽

pp. 183-188 ◽

Cited By ~ 4

Author(s):

R. Berbee ◽

P. Vermij ◽

W.J. van de Laak

Keyword(s):

Water Management ◽

Heavy Metals ◽

The Netherlands ◽

Policy Development ◽

Road Traffic ◽

Policy Document ◽

Integrated Water Management ◽

Porous Asphalt ◽

Diffuse Source ◽

Sustainable Solutions

Road traffic is a diffuse source of heavy metals and oil that leads to pollution of verges and surface water in areas immediately surrounding roads. The Commission for Integrated Water Management (CIW) has drawn up a policy document addressing methods for managing this type of pollution. The document is based on results from numerous studies in The Netherlands targeting pollution caused by traffic. The Commission concludes that measures at the source are the only way to realise sustainable solutions. For example, attention should be devoted to the issue of zinc emissions from car tyres and crash barriers. The concept of controlled infiltration is recommended for combating pollution caused by spray and runoff from roads. This includes periodic chemical inspection of verge pollution and, where necessary, replacement of the verge's top layer. The application of porous asphalt on highways in The Netherlands has also proven highly effective in limiting pollution caused by traffic, with far less pollution caused by spray from the highway and runoff as compared to traditional asphalt.

Download Full-text

Impact of heavy metals on water, fish (Cyprinus carpio) and sediments from a water tank at Tumkur, India

Oceanological and Hydrobiological Studies ◽

10.2478/v10009-009-0017-5 ◽

2009 ◽

Vol 38 (2) ◽

Cited By ~ 4

Author(s):

B. Sreedhara Nayaka ◽

S. Ramakrishna ◽

Jayaprakash ◽

M. Delvi

Keyword(s):

Heavy Metals ◽

Total Concentration ◽

Atomic Absorption Spectrophotometry ◽

Water Soluble ◽

Water Tank ◽

Lead And Cadmium ◽

Nickel Chromium ◽

Soil Sediment ◽

Water Fish ◽

Tank System

Impact of heavy metals on water, fish (This study was carried out to assess the concentrations of various heavy metals and their distribution in a hyper-eutrophic urban Tumkur tank system, which is being polluted from industrial, domestic and sewage effluents. Samples of water, fish and soil sediment were analyzed for the concentration of seven heavy metals (iron, zinc, copper, nickel, chromium, lead and cadmium) using atomic absorption spectrophotometry. The water-soluble (bioavailable) fractions of heavy metals correlated positively with their total concentration, exhibiting the following sequence of bioavailability: Zn > Cd > Ni > Pb > Cu > Cr > Fe.

Download Full-text

Design of drinkable tap water system at X Apartment, Jakarta

MATEC Web of Conferences ◽

10.1051/matecconf/201819713009 ◽

2018 ◽

Vol 197 ◽

pp. 13009

Author(s):

Hariastuti Prameswari ◽

Tazkiaturrizki ◽

R Ratnaningsih

Keyword(s):

Drinking Water ◽

Tap Water ◽

Water System ◽

Clean Water ◽

Water Tank ◽

Drinking Water System ◽

Investment Cost ◽

Tank System ◽

The Cost ◽

System Water

This design aims to contrive a plumbing system X Apartment, Jakarta with a separate clean water and drinking water system. Water supply system that applied to this apartment is roof tank system. Fluctuations in the use of clean water are used to determine the capacity of reservoirs and pumps using the equivalent apartments such as The Bellagio Residence Apartment, Four Winds Apartment, Tamansari Sudirman Apartment, and Setiabudi Residence Apartment. Total demand for clean water for the 1st and 2nd tower is 315.8 m3/day and 39 m3/day for drinking water with 216 m3 of ground water tank capacity. Transfer pumps work for 12 hour/day and the capacity of clean water roof tank for the 1st and 2nd tower are 67.5 m3 while for drinking water roof tank are 7.2 m3. System that has been chosen used 2 stand pipes for both clean water, drinking water, and booster pumps in each tower. This design concluded that The investment cost of clean water and drinking water system and also the construction of X Apartment reservoirs is Rp. 2.393.889.860 and the cost of drinking water that can be saved by residents when using drinkable tap water system is Rp. 874.656 per m3.

Download Full-text