Sewage Treatment Plant for Vessels The Latest Standard

• Method: Physical Treatment
• Usage: Industrial, Agriculture, Ship
• Type;: Marine Sewage Treatment Plant for Wastewater Trea
• Capacity: 10~250person
• Certificate: CCS, Ec, ABS, BV
• Product Standard: Uscg and Imo Mepc 227(64)
• Model NO.: STP
• Processing Methods: Biology
• Pullution Sources: Water Pollution Control
• Transport Package: Wooden Case
• Specification: ABS, GL, DNV, BV, CCS
• Trademark: Deyuan
• Origin: China
• HS Code: 8421219990
• Production Capacity: 150sets/Month

Product Description

Sewage Treatment Plant for Vessels the Latest Standard

Resolution MEPC.227(64)  Marine Sewage Treatment Plant

Marine Sewage Treatment Plant belongs to the key devices for prevention of pollution form ships in seas and oceans according to the revised Annex IV of the International Convention of the Prevention of Pollution (MARPOL 73/78). The resolution MEPC. 2 (VI) adopted on 3 December 1976 is the present guidelines on implementation of effluent standards and performance tests for STP, which is called old standards. This device is according to the resolution MEPC. 159(55) enacted on 13 October 2006, which is called new standards. The convention (MARPOL 73/78) provides that all STPs installed on board on or after 1 January 2010 should meet the resolution MEPC159(55). And from January 1st 2016, our sewage treatment plants are certified to meet USCG and IMO MEPC 227(64), which is applicable to new ships.

Features of Resolution MEPC.227(64)  Marine Sewage Treatment Plant

 

1. Adopting horizontal circular design, ellipse closures on both ends, pressure resistance and compact structure. 

2. The device is adopted auto-control, and compliance with the requirement of 24-hours unattended cabin. 

3. "MBR" technology, allow devices to narrow the size, and solve the conflict of small space of cabin, but big volume of device. 
4. The intermittent aeration in biomembrane tank and hollow fiber membrane tank, form the process of "aerobic - anoxic", and resolve the problem of "nitrogen and phosphorus removal".

 5. The device is adopting the principle of airlifting to transfer the sludge from sediment tank and membrane tank to aeration tank, mealtimes the pump stops and air never stopped, so as the scale on the membrane surface comes down. Due to back flushing and clean the membrane online USD technology patent, so the life of membrane can be prolonged at least 8 to 9years. 

6. "Online" cleaning technology, making the dirt on membrane off automatically, recover membrane flux. It can be solved the problem of opening the cleaning or replacement of membrane difficultly caused by the small space in cabin.

 7. The effluent after further treatment can be reached at the requirement of "water recovery"

There are three types of ship sewage treatment methods

(1) Storage cabinet type: the storage cabinet is set on the ship (it can be divided into simple storage mode and vacuum collection mode, and the latter has less washing water). When the ship is sailing in the inland river or coastal area, the domestic sewage shall be stored in the tank. When arriving at the port, the domestic sewage shall be received by the receiving device on the shore (or sent to receive by the ship), or the ship shall be discharged into the sea when sailing to the unrestricted sea area.

(2) Treatment and discharge type: domestic sewage treatment device shall be set on the ship, and the domestic sewage shall be purified and disinfected to meet the discharge standard before being discharged overboard.

(3) Recycling treatment: the liquid treated by the domestic sewage treatment device is used as the recycling flushing medium. Before the liquid is recycled, it is generally filtered, clarified and added with chemicals to sterilize and change the appearance of the washing medium (adding dye).

Technical Parameters of Marine Sewage Treatment Plant