This is our planet and the human impact on the environment has become one of the main challenges of our time.

Key Takeaways From MEPC

“Failure is not an option,” emphasized IMO Secretary-General Kitack Lim as he initiated MEPC 76, referring to the apparent need to fast-track global shipping’s ...

Marine Industry Knowledge

At LiqTech, our goal is to minimize the negative impacts made from living an improved lifestyle. With innovative clean technology, we reduce the harmful effects...

What Are the Wash Water Discharge Regulations?

The IMO Exhaust Gas Cleaning System Guidelines require ships to abide by several scrubber wash water discharge limits. Parameters as pH, PAH concentration, turb...

Where Are Open-Loop Scrubbers Banned?

An open-loop scrubber discharges sulfuric scrubber wash water, which contains gaseous and particulate emissions removed from the exhaust gases into sea. More ports adopt stricter environmental regulations to fight ocean acidification, which makes it difficult for vessels to operate with an open-loop scrubber. As of today, more than 120 ports worldwide have banned open-loop scrubber discharge. And in November 2020, the European Parliament’s enviro...

Open-loop VS closed-loop scrubbers

An exhaust gas cleaning system, also referred to as a scrubber, can take three forms; open-loop scrubber, closed-loop scrubber, and hybrid scrubber. Today, approximately 80 % of exhaust gas scrubber systems installed on vessels are open-loop scrubbers due to their low installation and operation costs. About 17 % of all scrubbers are hybrid scrubbers as they deliver some insurance in terms of compliance. With merely 2 %, the least installed scrubb...

Why Use a Closed-Loop Scrubber?

There are multiple reasons why it is advantageous to treat marine exhaust gas streams with a closed-loop scrubber, but there are three significant reasons, which are worth highlighting.

What Does a Scrubber remove?

A closed-loop scrubber utilizes alkaline-dosed seawater to neutralize sulfur oxide gasses from marine exhaust streams. Using alkali, such as sodium hydroxide (NaOH), also known as caustic soda, or magnesium hydroxide (MgOH), acids can be removed due to chemical reactions.

What Is the Technology Behind a Scrubber Water Treatment Unit?

A scrubber water treatment unit can remove polycyclic aromatic hydrocarbons (PAH), particulate matter (PM), and other unwanted particles. This process benefits the environment by fighting ocean acidification. 

Endless Opportunities for a Sustainable Shipping Industry

Although the shipping industry is effective, considered that it is cheap and can transport large volumes of goods, it is a major contributor to world pollution. The marine environmental impact is significant. Therefore, solutions are required immediately. See the below video to get a grasp of how much one single large cruise ship pollutes.    Advanced membrane technology is one of the keys to decarbonize the world’s shipping industry. This unique...

What is a marine scrubber?

According to the Exhaust Gas Cleaning Association, it is estimated that approximately 10 % of sulfur oxide (SOx) emissions stemming from human activities are caused by the global shipping industry. To lower this significantly, the International Maritime Organization (IMO) has implemented an international sulfur cap.