HarborBallast Port Treatment System Overview
Updated
PACT's 2021 HarborBallast catalog describes mobile/trailer, fixed-location and mobile-barge concepts for port-side ballast-water treatment. Those dated catalog descriptions are useful screening inputs, but every project still requires hydraulic, utility, permitting and acceptance assessment.
Key takeaways
- HarborBallast catalog information is a dated concept input, not a site promise.
- The described treatment train includes pre-filtration, UV and separated-solids handling.
- Mobile concepts are presented for 50–500 m³/h screening.
- Fixed concepts are presented for 50–5,000 m³/h screening.
- Barge concepts are presented for 1,000–5,000 m³/h screening.
- Every concept needs project-specific hydraulic, utility, permitting and acceptance work.
Read the catalog as a concept
Catalog interpretation is the starting point for the project brief. In this case, dated public material describes concepts rather than a site-specific engineering commitment. Establish the 2021 publication date, scope and stated assumptions before comparing concepts, because these conditions determine whether shore-side work is practical.
The commercial case should be measured against the operating pattern rather than an equipment headline. Record the 2021 publication date, scope and stated assumptions alongside expected vessel demand, turnaround pressure and the consequence of an unavailable service. That creates a basis for deciding whether the option should be mobile, permanent or not pursued.
A feasibility note should state the assumptions that could change the conclusion. In particular, revisit the 2021 publication date, scope and stated assumptions when berth allocation, vessel mix or local rules change. This prevents a preliminary concept from being treated as an operational commitment.
Understand the treatment train
Treatment-train review needs a physical walk-through, not just a drawing review. the catalog describes pre-filtration, UV treatment and handling of separated solids. Inspect water quality, solids route, monitoring and maintenance access at the actual berth and include the people who will rig, monitor and disconnect the transfer.
Temporary interfaces should be designed for the full transfer sequence. Check water quality, solids route, monitoring and maintenance access for safe access, containment, mechanical protection and an unambiguous isolation point. A route that works while idle may be unsuitable during cargo work or an emergency.
The operating procedure should identify who controls each boundary. It should cover water quality, solids route, monitoring and maintenance access, communications between ship and shore, and the action to take after a leak, pressure alarm or loss of contact. Those details matter more than nominal connection compatibility.
Screen mobile use
Mobile concept screening must be calculated as a complete system rather than as a nameplate flow. the catalog presents trailer/mobile service for small ballast volumes at 50–500 m³/h. Use road access, hose routing, utilities and local acceptance assessment to establish the duty point over the expected range of vessel levels and transfer rates.
Pressure loss changes with hose length, fittings, filtration condition and elevation. Confirm road access, hose routing, utilities and local acceptance assessment using conservative fouling and operating assumptions, then agree the allowable setpoints with the vessel. This avoids forcing a shore service into a pump condition it cannot sustain.
Instrumentation should show whether the planned duty is actually being achieved. Trend road access, hose routing, utilities and local acceptance assessment with transfer volume, pressure and alarms, and preserve the data after the operation. It is the most useful evidence when a delay or abnormal stop needs explaining.
Screen fixed use
Fixed concept screening includes supporting systems that can be overlooked in an early layout. the catalog presents fixed-location service at 50–5,000 m³/h. Assess site hydraulics, civil works, utilities and local permitting assessment as part of the treatment package, rather than leaving it for site mobilisation.
A workable installation provides safe access for inspection, cleaning and fault response. Verify site hydraulics, civil works, utilities and local permitting assessment under normal work, night work and restricted terminal conditions. The layout should not depend on improvised cables, drains or access routes.
The design basis should also define what happens when a support service is lost. Test site hydraulics, civil works, utilities and local permitting assessment against a power interruption, blocked drain, high solids load or control failure. A controlled stop is preferable to continuing a transfer without the required safeguards.
Screen barge use
Barge concept screening is governed by the local operating and acceptance framework. the catalog presents mobile-barge service for larger ship volumes at 1,000–5,000 m³/h. Confirm marine access, mooring, weather and acceptance assessment early with the parties whose approval, permit or instruction affects the work.
IMO G5 is guidance for reception facilities; it is not a licence or a universal technical design. Map marine access, mooring, weather and acceptance assessment against applicable flag, port, class, authority and discharge-permit requirements. The resulting gap list should be closed before a vessel is booked.
No port-side arrangement should be described as guaranteeing D-2 compliance or acceptance. Retain the decisions on marine access, mooring, weather and acceptance assessment, the agreed operating limits and the authority communications. That record makes the limits of the service clear to all parties.
Develop the project basis
Project development turns a completed transfer into an auditable operation. capacity figures alone do not establish a usable port service. Agree vessel profile, berth operations, permits, interfaces and evidence requirements before work starts so evidence is captured at the time it is created.
Useful records connect the vessel's ballast activity with shore actions and any separated-waste route. Reconcile vessel profile, berth operations, permits, interfaces and evidence requirements against timestamps, meter totals, alarms and the person responsible for each handover. Corrections made later are weaker than contemporaneous records.
Sampling or testing, where required, needs an agreed purpose and chain of responsibility. Sea Clean can coordinate with independent ISO 17025 laboratories and flag/class-authorised parties where required; it is not an accredited laboratory or independent certifier. Store vessel profile, berth operations, permits, interfaces and evidence requirements with the service report and relevant vessel documentation.
Frequently asked questions
What is HarborBallast?
It is the name used in PACT's 2021 catalog for port-side ballast-water treatment concepts. Sea Clean AS is PACT Marine's European partner.
Are the catalog capacities guaranteed?
No. They are dated indicative catalog values, not Sea Clean capacity promises or approvals. A project-specific engineering and acceptance assessment is required.
What treatment elements are described?
The catalog describes pre-filtration, UV treatment and handling of separated solids. Exact configuration and suitability require project review.
Does this prove D-2 compliance?
No. A port solution should not be presented as guaranteeing D-2 compliance. Applicable requirements and acceptance must be verified project by project.