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Water & Environment

Environmental pollution is one of the most serious global challenges and is common in both developed and developing countries. Clean water, which is an essential resource for people and their environments throughout the world, is increasingly scarce due to the negative effects of environmental pollution.

Both developed and developing nations share this burden together, and most of them have been paying close attention to developing the domestic economy, which is associated with environmental protection, to drive sustainable development. Therefore, governments have been establishing stricter environmental regulations, broadly investing in water and wastewater infrastructure, and impulsively reusing wastewater to support a circular economy.

The stricter regulations require companies to pay more attention to the management and treatment of wastewater, waste streams, contaminated soils, and flue gas. Water, wastewater, and flue gas treatment are complicated and require high-technical processes. Converting raw water to drinking water involves a series of processes, from removing impurities and metals to post-treatment softening or mineralization. Wastewater treatment is also an extremely involved process and presents numerous challenges related to both operations and treatment processes. Flue gas produced by energy from waste contains pollutants. They must be treated with many high-quality chemicals and devices and totally cleaned before being discharged into the environment.

With the right products and strategies, though, water treatment and flue gas cleaning plants can increase their efficiency and the quality of the treated water they discharge. At TLD Vietnam, we supply a wide range of products for drinking water treatment, waste water purification, biosolids, and flue gas cleaning. Our products with high purity and reaction can help you meet regulatory requirements while helping you make your plant more efficient and improve your outcomes. Having the right products and the right partner to back you up makes the difference.

Sewage Sludge Treatment

Sewage sludge is a by-product of sewage treatment. It takes two forms: semi-solid waste (raw or digested biosolids) and slurry (liquid sludge). Both forms of sewage sludge require further treatment before they can be safely disposed of or recycled. In the agricultural sector, sludge treatment can turn a potentially harmful waste stream into a safe and natural fertilizer for use on land.

Quicklime and calcium hydroxide have been used effectively to treat sewage biosolids as well as industrial sludges for more than 100 years. We offer high-quality calcium lime products that guarantee high performance for chemical reactions; this also brings a cost-effective and environmentally friendly solution to our valued customers. Our lime solutions play an essential role in sewage sludge treatment, with many advantages:

  • Optimize operational efficiency.
  • Reduce treatment costs.
  • Offer a safe and sustainable alternative to other chemical treatments.

Wastewater Treatment

Wastewater treatment is the process that removes the majority of the contaminants from wastewater or sewage and produces a liquid effluent suitable for disposal in the natural environment. There are two main polluted sources needed for treatment: municipal wastewater and industrial liquid waste. The main goal of wastewater treatment is to minimize the burden on the receiving watercourses by removing all organic and oxygen-consuming compounds and nutrients. Once treated, wastewater can be released back into the water system or recycled for use.

Lime solutions are used at various stages of the effluent and wastewater treatment process for a wide range of applications, including:

  • Acid neutralization.
  • Solids Precipitation.
  • Coagulation and pH control.
  • Metallic contamination removal.

We work closely with our customers to identify the most efficient, cost-effective, and sustainable lime solutions for their wastewater requirements, ensuring maximum return on investment.

Drinking Water Treatment

Water originating from natural sources such as rivers, lakes, aquifers, and even man-made reservoirs contains dirt, pathogens, and some minerals that cause scale. Furthermore, in the current situation of increasing environmental pollution around the globe, drinking water sources are also subject to contamination and require appropriate treatment to remove disease-causing agents. These impurities can create issues ranging from public health emergencies to large expenses combating water distribution-related issues.

The process of treating raw water into potable water goes through many stages, such as:

  • pH control.
  • Softening and remineralization.
  • Desalination.
  • Alkalinity correction and chemical balance adjustments.
  • low-cost source of hydroxide ions.
  • Removal of impurities in potable water systems.

Quicklime, hydrated lime, and related calcium-based products have been used for a century to remove dirt and hardness minerals and to begin the disinfection of pathogens in treated drinking water. Our cost-effective and environmentally friendly quicklime and hydrated lime solutions can help you achieve high standards of treatment, making water safer while consuming less of the more expensive aluminum and iron-based coagulant additives, saving you money.

Flue Gas Treatment

Flue gas is generated by the incineration of waste and many other industrial processes. These contain pollutants such as sulfur oxides (SO2 + SO3), hydrochloric acid (HCl), and hydrofluoric acid (HF), as well as heavy metals, dioxins, and furans, and must be cleaned before being discharged into the environment.

The goals of flue gas treatment are:

  • Removing acidic gases, particularly sulfur dioxide (SO2) and hydrogen chloride (HCl).
  • Avoiding the emission of pollutants into the atmosphere.
  • Ensuring cost-effectiveness and suitability for the cleaning method used.
  • increasing the effectiveness of pollution removal at municipal waste-to-energy facilities.

In TLD Vietnam, we provide various minerals (from limestone, calcium carbonate to lime, hydrated lime, etc.) with a wide range of particle sizes and reactivities to deliver the best technical and economic performance to scrubbers operated by waste-to-energy plants.

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