An overview of the Global Zero Liquid Discharge System (ZLD)
The Zero liquid discharge system is a waste disposal technique to minimize liquid waste and maximize water usage efficiency. This has been evolving and capturing the market despite being expensive and energy-intensive.
The Global Zero Liquid Discharge System market is evolving as the conventional thermal Zero Liquid Discharge System (ZLD) are incorporating new techniques like RO (Reverse osmosis) Preconcentration, Membrane-based Zero Liquid Discharge (ZLD) technologies, Forward Osmosis (FO) Electrodialysis (ED) and Electrodialysis Reversal (EDR).
The Global Zero Liquid Discharge (ZLD) System Market was valued at USD 5.4 billion in 2018.
The Global Zero Liquid Discharge (ZLD) System market is predicted to reach USD 8.1 billion in 2023 with a healthy CAGR of 8.3% between 2018-23.
Trends in the Zero Liquid Discharge System market
- North America is expected to rule the Global Zero Liquid Discharge (ZLD) System Market.
- Raised demand for water and scarcity across the globe has made it imperative to recycle and reuse waste water.
This reduces the volume of waste that is let in water bodies which minimizes water pollution. It also lifts the pressure off the ecosystem that occurs because of freshwater withdrawal. Thus industries and administrations are tending towards this sustainable practice.
- Membrane-based processes that reduce energy consumption and cost are being worked upon and integrated into current practices. They will possibly make the Global Zero Liquid Discharge System (ZLD) more applied and prevalent.
- The traditional thermal ZLD systems are being modified due to their multiple drawbacks like high energy consumption, huge infrastructure cost and environmental hazard of potential leakage. Also, they remove waste but do not facilitate the recycling of water.
- Thermal ZLD with Reverse osmosis (RO) based upon pressure-induced desalination technology consumes less energy and is gaining momentum in Zero Liquid Discharge System (ZLD) practices.
- Countries are exploring a more advanced RO system called HERO (high-efficiency reverse osmosis). It achieves low fouling/ scaling propensity and high water recovery by extensive pre-treatment and raised pH of upto 20.
- Research is being taken to create technology that can tolerate higher salinity than RO and consumes less energy than brine concentrators.
Drivers of growth of Global Zero Liquid Discharge (ZLD) System market
- Growing global freshwater scarcity due to climatic change and overconsumption has made the Zero Liquid Discharge System (ZLD) a stark necessity.
- Stricter regulations for wastewater disposal by industries imposed by big economies like India, China and the USA.
Disposal of brine water into water bodies poses a great hazard to aquatic and public health. In addition, countries where industries prospering are also concerned about depleting freshwater.
- Novel techniques are facilitating resource recovery out of beneficial components in the feed water. This compensates for the expensive set-up and running cost of the Zero Liquid Discharge System (ZLD). The valuable components harvested from Zero Liquid Discharge System include salts (e.g. Magnesium hydroxide, calcium carbonate), nutrients, metal, elements.
All these have a utility in various industries and thus sell at a good price, which makes up for the cost of the Zero Liquid Discharge System to some extent.
Key players in the Global Zero Liquid Discharge (ZLD) System market:
Praj Industries Ltd. (India), Veolia Water Technologies (France), Doosan Hydro Technology LLC (US), Petro Sep Corporation (Canada), IDE Technologies (Israel.)