Environment Service Division

Vision

While every human activity and development exerts an impact on the natural world, we learn more every day about how to minimize project footprints, apply better practices, and more balanced approaches. Our priority is to understand our clients’ business needs and provide real solutions to real problems, whatever and wherever they may be. 

Our reputation is built on helping clients mitigate risk, manage and reduce impacts, and maximize opportunities related to health and safety, sustainability, climate change, energy, and the environment.

Cross-Sector Collaboration

We work across multiple sectors, from the infrastructure projects of the future, managing past legacies, cleaning up the most complex brownfield sites to developing and delivering sustainability strategies. Our clients are active in the transport and infrastructure, property and building, power and energy, government, industrial and private sectors. Our work covers the full range of services and is built on state-of- the-art science, environmental management, and engineering.

An Agile Approach in a Changing World

Global climate change and political context are among the factors that impact the projects to which we contribute. Environmental rules and regulations vary along with different application and evolve over the years. Digital technologies are revolutionizing the tools we use and how we deliver our work. HT experts are up-to-date on the latest trends and challenges related to the environment. 

General Services

Careful attention to the specific needs of the Client, stake-holders and the project is a key factor in the strategy HT employs in all professional services. Our team will work in partnership with the Client’s team and representatives as well as other consultants to establish specific objectives and will obtain appropriate strategies for their successful realization.

HT offers the following general services:

1. Water Treatment
2. Wastewater Treatment
3. Ground water treatment
4. Air quality Monitoring and treatment
5. Soil remediation and Soil rehabilitation
6. Solid waste management
7. Aquatic Ecosystem (Seawater, Fish ponds …ect.)  monitoring and
8. rehabilitation.
9. Oil Spill response.
10. Treatment plant services.

Comprehensive Services

1. Water Treatment: 

Water treatment is any process that improves the quality of water to make it more acceptable for a specific end-use. The end use may be drinking, industrial water supply, irrigation, river flow maintenance, water recreation or many other uses, including being safely returned to the environment. Water treatment removes contaminants and undesirable components, or reduces their concentration so that the water becomes fit for its desired end-use. This treatment is crucial to human health and allows humans to benefit from both drinking and irrigation use.

Water treatment types as followed:

A. Brackish water Reverse Osmosis Plant: Brackish water desalination helps to turn inland brackish water and brine streams into a fresh, high-quality water source for drinking, bathing and irrigation. Ideal for arid landlocked regions, our technologies include reverse osmosis and thermal water desalination.

B. Sea water Reverse Osmosis Plant: Seawater desalination plants, solutions, processes and chemicals are tailored to desalinate seawater for large-scale municipal use. These technologies and processes have improved water security for tens of thousands of people by turning to the only consistent available water source for water relief – the ocean!

2. Wastewater Treatment: 

Wastewater treatment is a process used to remove contaminants from wastewater or sewage and convert it into an effluent that can be returned to the water cycle with minimum impact on the environment, or directly reused. The latter is called water reclamation because treated wastewater can be used for other purposes. The treatment process takes place in a wastewater treatment plant (WWTP), often referred to as a Water Resource Recovery Facility (WRRF) or a Sewage Treatment Plant (STP). Pollutants in municipal wastewater (households and small industries) are removed or broken down.

The treatment of wastewater is part of the overarching field of sanitation. Sanitation also includes the management of human waste and solid waste as well as stormwater (drainage) management. By-products from wastewater treatment plants, such as screenings, grit and sewage sludge may also be treated in a wastewater treatment plant.

Wastewater treatment types as followed:

A. Sewage Treatment Plant (STP): Sewage treatment is the process of removing contaminants from municipal wastewater, containing mainly household sewage plus some industrial wastewater. Physical, chemical, and biological processes are used to remove contaminants and produce treated wastewater (or treated effluent) that is safe enough for release into the environment. A by-product of sewage treatment is a semi-solid waste or slurry, called sewage sludge. The sludge has to undergo further treatment before being suitable for disposal or application to land.

B. Industrial Wastewater Treatment Plant (ETP): Industrial wastewater treatment describes the processes used for treating wastewater that is produced by industries as an undesirable by-product. After treatment, the treated industrial wastewater (or effluent) may be reused or released to a sanitary sewer or to a surface water in the environment. Most industries produce some wastewater. Recent trends have been to minimize such production or to recycle treated wastewater within the production process.

C. Agricultural wastewater treatment plant: Agricultural wastewater treatment is a farm management agenda for controlling pollution from surface runoff that may be contaminated by chemicals in fertilizer, pesticides, animal slurry, crop residues or irrigation water.

D. Leachate treatment plants: Leachate treatment plants are used to treat leachate from landfills. Treatment options include: biological treatment, mechanical treatment by ultrafiltration, treatment with active carbon filters, electrochemical treatment including electrocoagulation by various proprietary technologies and reverse osmosis membrane filtration using disc tube module technology.

E. Groundwater Treatment process: Groundwater remediation is the process that is used to treat polluted groundwater by removing the pollutants or converting them into harmless products. Groundwater is water present below the ground surface that saturates the pore space in the subsurface. Globally, between 25% and 40% of the world’s drinking water is drawn from boreholes and dug wells. Groundwater is also used by farmers to irrigate crops and by industries to produce everyday goods. 

Most groundwater is clean, but groundwater can become polluted, or contaminated as a result of human activities or as a result of natural conditions. The many and diverse activities of humans produce innumerable waste materials and by-products. Historically, the disposal of such waste has not been subject to many regulatory controls. Consequently, waste materials have often been disposed of or stored on land surfaces where they percolate into the underlying groundwater. As a result, the contaminated groundwater is unsuitable for use.

Current practices can still impact groundwater, such as the over application of fertilizer or pesticides, spills from industrial operations, infiltration from urban runoff, and leaking from landfills. Using contaminated groundwater causes hazards to public health through poisoning or the spread of disease, and the practice of groundwater remediation has been developed to address these issues. Contaminants found in groundwater cover a broad range of physical, inorganic chemical, organic chemical, bacteriological, and radioactive parameters. Pollutants and contaminants can be removed from groundwater by applying various techniques, thereby bringing the water to a standard that is commensurate with various intended uses.

3. Air Quality: 

The atmosphere of Earth is the layer of gases, commonly known as air, that surrounds the planet Earth and is retained by Earth’s gravity. The atmosphere of Earth protects life on Earth by creating pressure allowing for liquid water to exist on the Earth’s surface, absorbing ultraviolet solar radiation, warming the surface through heat retention (greenhouse effect), and reducing temperature extremes between day and night (the diurnal temperature variation).

HT provides services related to air quality as followed:

A. Air quality assessment and monitoring: An air quality assessment is usually expected if the impact from a new development, increase in use of an existing property, or change of use is likely to be significant. This should include Indoor and outdoor air quality environment. This may include increases in traffic movements, or the introduction of a new emission that may impact on the local air quality, such as a biomass boiler that may be within an Air Quality Management Area (AQMA). Without accurate assessment and awareness of air quality sources and their related impact to identified receptors it would be impossible to propose effective mitigation solutions. Therefore, the demand by local planning authorities for air quality assessments has increased significantly, particularly in support of planning applications for new developments or change of use proposals, where there are already sensitive receptors nearby or the site is within an AQMA.

B. Air quality Treatment: Air pollution control, the techniques employed to reduce or eliminate the emission into the atmosphere of substances that can harm the environment or human health. The control of air pollution is one of the principal areas of pollution control, along with wastewater treatment, solid-waste management, and hazardous-waste management. Air considered to be polluted when it contains certain substances in concentrations high enough and for durations long enough to cause harm or undesirable effects. These include adverse effects on human health, property, and atmospheric visibility. The atmosphere is susceptible to pollution from natural sources as well as from human activities.

• 4. Soil remediation and rehabilitation:
  Soil contamination or soil pollution as part of land degradation is caused by the presence of xenobiotics (human-made) chemicals or other alteration in the natural soil environment. It is typically caused by industrial activity, agricultural chemicals or improper disposal of waste. The most common chemicals involved are petroleum hydrocarbons, polynuclear aromatic hydrocarbons (such as naphthalene and benzo(a)pyrene), solvents, pesticides, lead, and other heavy metals. Contamination is correlated with the degree of industrialization and intensity of chemical substance. The concern over soil contamination stems primarily from health risks, from direct contact with the contaminated soil, vapors from the contaminants, or from secondary contamination of water supplies within and underlying the soil.Application includes treatment for direct contamination for example oil spills and oil lacks; also soil rehabilitation for agriculture proposes.5. Solid waste management: 
  Solid-waste management, the collecting, treating, and disposing of solid material that is discarded because it has served its purpose or is no longer useful. Improper disposal of municipal solid waste can create unsanitary conditions, and these conditions in turn can lead to pollution of the environment and to outbreaks of vector-borne disease—that is, diseases spread by rodents and insects. The tasks of solid-waste management present complex technical challenges. They also pose a wide variety of administrative, economic, and social problems that must be managed and solved.

  6. Aquatic Ecosystem (Seawater, Fish ponds …ect.)  monitoring and rehabilitation:

  An aquatic ecosystem is an ecosystem in a body of water. Communities of organisms that are dependent on each other and on their environment live in aquatic ecosystems. The two main types of aquatic ecosystems are marine ecosystems and freshwater ecosystems.

  7. Oil Spill response:

  An oil spill is the release of a liquid petroleum hydrocarbon into the environment, especially the marine ecosystem, due to human activity, and is a form of pollution. The term is usually given to marine oil spills, where oil is released into the ocean or coastal waters, but spills may also occur on land. Oil spills may be due to releases of crude oil from tankers, offshore platforms, drilling rigs and wells, as well as spills of refined petroleum products (such as gasoline, diesel) and their by-products, heavier fuels used by large ships such as bunker fuel, or the spill of any oily refuse or waste oil.