Wei Chen
Stop Discharging Visible Floating Solids from Sewage in High Seas
Co-authored by Dr. Wei Chen, Felix von Bredow, Oliver Jost, Markus Joswig, and Mats Riska What is ‘screenings m...
Compliance and the Use of Food Waste Digesters on Ships
[By Wei Chen, Gerhard Schories, Oliver Jost, Niclas Karlsson and Markus Joswig] A food waste digester, or biodigester as they a...
"Going Beyond the Rules" on Food Waste May Mean Breaking the Rules
[By Wei Chen, Oliver Jost, Niclas Karlsson, Markus Joswig and Mark Beavis] This short paper reviews food waste and food waste r...
Vanishing Food Waste Flouts Maritime and National Law
Waste disposal on some vessels contravenes both maritime and national biosecurity legislation by allowing food waste into gray wat...
Support for Major Reshape of MARPOL Annex IV
Disinfecting raw sewage is ineffective and harmful. The comminuting and disinfecting systems are a disservice to the IMO's asp...
Avoiding Non-Compliance in Ship Generated Food Wastes
Seeing custom officers stopping certain food products (among other things) at the airport, one might find it hard to contemplate t...
Opinion: Grey Water Related Non-Conformities Need to be Addressed
Manufacturers are there to innovate, to compete, to think outside-the-box and to test boundaries. However, there is a line, drawn...
MEPC 74 Agrees to Revise MARPOL Annex IV While Non-Conformities Spread
To protect marine water from ships’ sewage discharges is no less important than any other environmental aspirations of ...
Sewage Chlorination Without De-chlorination: A Certified Impossibility
The approval regime has been in the blood of the marine industry. It has served well to safety equipment, but can the same be said...
Call for Action on Sewage Treatment with No-Sludge Production
In late 2018, The Maritime Executive featured an editorial by me, Dr. Wei Chen of Wärtsilä Water Systems, on the subject...