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 | Shincci  Global

Drying Technology

 | Shincci  Global Drying Technology


Technologies That Can Achieve Water And Sanitation For All

Upload time:2021-05-26

A staggering four billion people — two-thirds of the world’s population — experience water scarcity each year, and more than half lack access to safe sanitation services. The severity of this global water crisis will only increase as populations continue to rapidly grow, industries exhaust shared resources and extreme weather events exacerbate shortages. If we don’t act urgently, 700 million people could be displaced by intense water scarcity in just a few short years.

How can we safeguard our most precious resource while simultaneously achieving water for all?

The answer is simple: technology. Through cutting-edge advancements in water reclamation, desalination and many other technologies, water stressed regions can now invest in cost-effective, sustainable water and sanitation solutions.

While we acknowledge the amount of work still to be done, World Water Day is also a time to celebrate how far we’ve come and highlight some of the achievements we’ve made thus far in water conservation, preservation and sanitation technologies. Below are just three of the many unique technological advancements empowering water-scarce regions with control and value of their water supply.

Cost-Effective “Plant In A Box” Desalination
The latter of these low-cost options, containerized reverse osmosis plants, serve as end-to-end “plants in a box.” This smaller desalination technology greatly reduces energy consumption and can operate with fairly low amount of chemicals, with some solutions providing up to 20,000m3/day. For smaller countries or communities that may not be able to invest in larger, costlier desalination plants, this is an affordable, easily transportable and eco-friendly solution.
Sanitary, Chloramine-Free Water Reuse
A third of the world’s biggest groundwater systems are already in distress, meaning water stressed countries will soon have little choice but to rely on water reuse as their primary water supply. As more countries turn to wastewater as a source for fresh drinking water, it’s critical that they use systems that will produce the cleanest, safest water possible. This means using reverse osmosis processes that eliminate the need for potential contaminants such as chloramine.

Conventional water reuse systems typically include chloramine as a means to control biofouling. However, chloramine is a precursor to the formation of N-nitrosodimethylamine (NDMA) — a dangerous organic contaminant and suspected carcinogen and to the formation of other disinfection by products, such as trihalomethanes (THM). Fortunately, certain reverse osmosis technologies can now fully operate without chloramine or other contaminants. Instead of chloramine dosage to control biofouling, reverse osmosis membranes can be operated and maintained by altering the osmotic and hydraulic conditions in the pressure vessel which makes the conditions unfavorable for biofilms proliferation.

As regulations around chemicals in water treatment tighten, technologies must embrace new and sustainable solutions to ensure drinking water remains sanitary.
Eco-Efficient Brine Management
For all the good that desalination provides, it doesn’t come without its drawbacks. Its main byproduct, brine, can harm the environment if not properly discharged and in some cases, there is not access to a place that can accept the brine (usually the ocean). Increasing regulatory pressure, environmental awareness and more, larger membrane desalination plants are driving the need for better brine minimization — one of the greatest challenges currently facing the water treatment sector.
Luckily, desalination technology has evolved so rapidly in such a short period of time, making plants more efficient and environmentally friendly than ever before. Some companies have figured out ways to convert concentrated brine into useful chemicals such as sodium hydroxide, while others have drastically minimized the byproduct through achievements in reverse osmosis technology.
It is critical that industry applications in particular, which globally account for nearly 20 percent of total water withdrawals, adopt brine minimization technologies to recycle and reuse as much water as possible.
Cultivating A Sustainable Future For All
If we continue depleting our freshwater supply at the current rate, we will soon run out of water. That is, unless we turn to sustainable desalination and water reuse solutions. Israel serves as the ideal case study for how water treatment technologies can single-handedly raise a drought-ridden country out of its water crisis and transform it into a completely stable, self-sufficient water producer and consumer. Today, up to 75 percent of the country’s household drinking water comes from desalination and after its initial usage is almost totally reused again for agricultural irrigation.
Unfortunately, most developing countries are unable to follow in Israel’s footsteps, as an absence of resources and expertise prevent widespread adoption of the technologies. This means far more needs to be done to lower the cost and increase accessibility to these technologies. But how?
As the technologies outlined demonstrate, we have the knowledge and capacity to create fully water independent countries. We need to encourage collaboration and planning between governments, operators and international organizations to make thee accessible to every water scarce region. Only then can we make strides toward the UN’s goal of water and sanitation for all — through technology and working together.

Author of this article: Lior Eshed


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