Sustainable management of MARPOL 73/78 Annex
II Noxious liquid substance Wastes generated from
Chemical Tankers at Indian Ports
Capt. Abhijit Arvind Mohite
Ph.D. Scholar
Indian Maritime University
Chennai, India
87.abhijit@gmail.com
Abstract— Noxious Liquid Waste substances management
planning, Transportation, & its implementation is an important
Administrative, Technical, Environmental, Economic &
Financial issue for India and World’s Developing countries. As
in the case of Indian ports, Noxious liquid substance waste
management planning, and its implications forms a rapidly
growing subject of interest in the Central Pollution Control
Board (CPCB), Ministry of Environment, Forest and Climate
Change, Government of India because Indian ports are sources
of considerable volumes of Noxious liquid substance/
hazardous wastes.
One of the main subjects of Indian authorities dealing with
Environmentally Sound matters is ship and port Noxious liquid
substances waste management. The implementation of
MARPOL involves separate perceptions between the way
Noxious Liquid Substance waste management from vessels is
carried out and the systems and controls implemented in land-
generated hazardous liquid waste management. As there are
differences between land-based and maritime waste
management, the MARPOL Annex II NLS classification varies
at local waste reception facilities outside ports. Yet, to avoid a
ship-shore interface break, an onboard and ashore integrated
Hazardous or NLS liquid waste management system is
essential. Developing and implementing Unified Standard
Operating procedures for collection, transfer & Disposal of
Noxious liquid Substances might best address the adverse
impacts of NLS waste management at Indian Ports [12]
Keywords—Marine Pollution; Noxious liquid substances; Port;
Chemical Tanker; MARPOL Annex II; Chemicals Transportation
by sea; Prewash; Hazardous waste
I. INTRODUCTION
Noxious Liquid Waste substances management planning,
Transportation, & its implementation is an important
Administrative, Technical, Environmental, Economic &
Financial issue for India and World’s Developing countries.
The International Convention for the Prevention of Pollution
from Ships (MARPOL 73/78) is the international convention
covering the prevention of pollution of the marine environment
by ships. India is a party to the MARPOL convention. The
Convention includes regulations to prevent and minimize
marine pollution from ship-generated waste. MARPOL has six
Annexes which cover pollution from oil, NLS in bulk,
Hazardous waste in packed form, Sewage, Garbage & Air
Annex II Regulations for the Control of Pollution by
Noxious Liquid Substances in Bulk gives the details of the
discharge criteria and measures for the control of pollution by
noxious liquid substances carried in bulk; More than 400
substances are evaluated as per the latest IBC Chapter 17
Amendments and included in the list appended to the
Convention. The discharge of NLS residues is allowed only to
reception facilities as per Ship specific Procedures &
arrangements manual for each chemical tanker as required by
MARPOL. The prevention of NLS residues pollution totally
depends on the provision of adequate port reception facilities on
land. However, the coordination between Port reception
facilities and environment-friendly disposal is still a major issue
in India. In its “Final Report of Monitoring Committee on
Management of Hazardous Waste” of July 2019, the Central
Pollution Control Board, Ministry of Environment, Forest, and
Climate Change, GOI [5] has directed the Ministry of Shipping
to prescribe requirement of reception facilities at each cargo
loading and unloading port, terminal, and ship repair ports.
Noxious Liquid Substance (NLS) means any substance
indicated in the Pollution Category column of chapters 17 or 18
of the International Bulk Chemical Code (IBC), or the current
MEPC.2/Circular or provisionally assessed under the provisions
of regulation 6.3 of MARPOL Annex II as falling into categories
X, Y or Z. DG Shipping, CPCB, MARPOL & Local State rules
& Guidelines must also be aligned about the strategies for the
integrated sustainable NLS waste management of ship and port
wastes. However, many Indian ports have not met related
standards yet.
II. VARIOUS REQUIREMENTS
A. NLS Pollution Categories as per MARPOL [1]
The International Convention for the Prevention of Pollution
from Ships, 1973 as modified by the Protocol of 1978
(MARPOL 73/78) is one of the most important international
marine environmental conventions. MARPOL Annex II
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