Sludge Treatment and Effective Utilization PFI Business

March 2022 A switch-on ceremony was held on Wednesday, June 15, 2022, following the completion of the renewal of the sludge incinerator under this project and the completion of all facilities, including sludge fuel conversion facilities and improved soil plants, which have already been in operation. The ceremony was held as one of the commemorative events of "Yokohama Modern Sewerage Introduction 150 Years / 60th Anniversary of Sewage Treatment".

Press release document (June 10, 2022) (PDF: 1,341KB)

　Yokohama City collects sludge generated during the process of treating sewage at two sludge recycling centers in the city. We have been working on the effective use of resources, such as by effectively utilizing biogas and sludge incineration ash generated during the treatment process.
　In line with the renewal of the sludge incinerator and improved soil plant in Hokubu Sludge Treatment Plant, in order to promote global warming countermeasures and more effective use of resources. ※In addition to maintaining 1, we will maintain and operate, including the improved soil plant currently operated in the PFI business.
　In implementing the project, we will implement a PFI project that can utilize the private technical capabilities and funds of the private sector.
＊1 This facility uses sludge generated in the process of sewage treatment as a raw material to produce bio-derived fuels that can be used as an alternative to fossil fuels. By switching the system from incineration to fuel material production, it is expected that the greenhouse gas generated during the sludge incineration process will be significantly reduced.

Yokohama City Hokubu Sludge Treatment Plant Sludge Treatment and Effective Utilization Business

　The purpose of this project is to renew the sludge incinerator and improved soil plant, and to use fuel for effective use of products generated in the final process of sewage treatment from the viewpoint of global warming countermeasures and effective use of resources. The facility, sludge incinerator and improved soil plants. In addition, in implementing the project, we will utilize the unique technologies and ingenuity of private businesses to make it more economical and consider reducing the environmental impact.

1 Hokubu Sludge Treatment Plant, 1-6 Suehirocho, Tsurumi-ku, Yokohama
8 In the improved soil plant at 1-6 Suehirocho, Tsurumi-ku, Yokohama

April 7, 2015

Announcement of implementation policy, requirement standard (draft), and monitoring basic plan (draft)

From April 7 to 20, 2015

Acceptance of questions and opinions regarding the implementation policy, requirement standard document (draft), and monitoring basic plan (draft)

May 14, 2015

Disclosure of answers to questions and opinions concerning implementation policies

July 9, 2015

Selection and publication of specific businesses

July 14, 2015

Public notice of tender, tender manual, required standard, monitoring basic plan, successful bidder determination standard, collection of styles,
Publication of basic agreement (draft) and business contract (draft)

August 19, 2015

Publication of answers to questions regarding tender manuals, etc. (Primary)

September 25, 2015

Publication of answers to questions regarding tender manuals, etc. (Second)

From October 9 to 16, 2015

Acceptance of bid participation qualification confirmation application

From November 13 to 20, 2015

Acceptance of bid documents

February 5, 2016

Announcement of winning bidders

March 29, 2016

Conclusion of basic agreement with successful bidder

August 31, 2016

Conclusion of business contracts

　Implementation Policy (PDF: 640KB)

　Requirements Standard (draft) (PDF: 8,363KB)

　Monitoring basic plan (draft) (PDF: 588KB)

　Form -1 (Excel: 25KB)

　Form-2 (Excel: 29KB)

　Form -3 (Excel: 29KB)

　Answers to questions regarding the implementation policy (PDF: 209KB)

　Answers to questions regarding the requirement standard document (draft) (PDF: 287KB)

　Monitoring basic plan (draft) Answers to questions regarding others (PDF: 131KB)

　Selection of specific businesses (PDF: 481KB)

　Bid manual (PDF: 689KB)

　Requirement Standards (PDF: 8,758KB)

　Monitoring Basic Plan (PDF: 576KB)

　Successful bidder decision criteria (PDF: 426KB)

　Formulation of Forms (Text) (PDF: 272KB)

　Collection of styles (word-related) (word: 472KB)

　Collection of Forms (excel) (Excel: 176KB)

　Basic Agreement (draft) (PDF: 291KB)

　Business contract (draft) (PDF: 583KB)

　Answer to the question (primary) regarding the tender manual (PDF: 210KB)

　Answer to the question (primary) regarding the required standard document (PDF: 245KB)

　Answer to the question (primary) regarding the monitoring basic plan (PDF: 116KB)

　Answers to questions (primary) regarding the collection of styles (PDF: 170KB)

　Answer to the question (primary) regarding the basic agreement (draft) (PDF: 120KB)

　Answer to the question (primary) regarding the business contract (draft) (PDF: 194KB)

　No. 3 incinerator inspection and repair history (PDF: 3,528KB)

＊There is no answer to the question regarding the winning bidder decision criteria this time.

　Monitoring Basic Plan (revised version) (PDF: 394KB)

　Collection of styles (modified version) (PDF: 223KB)

　Collection of styles (word related) (modified version) (word: 471KB)

　Formulation of Forms (excel) (Revised version) (Excel: 177KB)

　Business contract (draft) (Revised version) (PDF: 423KB)

　Monitoring basic plan change comparison table (PDF: 116KB)

　Answer to the question (secondary) regarding the tender manual (PDF: 137KB)

　Answers to the question (secondary) concerning the requirement standard document (PDF: 166KB)

　Answer to the question (secondary) regarding the monitoring basic plan (PDF: 108KB)

　Answers to questions (secondary) regarding the collection of styles (PDF: 154KB)

　Answer to the question (secondary) regarding the business contract (draft) (PDF: 174KB)

　Bid manual (modified version) (PDF: 456KB)

　Business contract (draft) (revised version) (PDF: 423KB)

　Change comparison table for tender manuals (secondary) (PDF: 108KB)

　As we received choice of best proposer by utilization business examination committee such as Yokohama-shi private funds and decided successful bidder, we announce as follows.

　Report on the decision of the winning bidder (PDF: 523KB)

　We were conducting negotiations for a business contract with a group led by JFE Engineering Co., Ltd., which was determined as the winning bidder, but we have concluded a business contract.

　Details of Business Contracts (PDF: 175KB)

City of Yokohama, Environmental Planning Bureau
Sewerage Facilities Department Sewerage Equipment Section
〒231-0005 6-50, Honmachi, Naka-ku, Yokohama City Yokohama City Hall 28F
TEL 045-671-2852
FAX 045-550-4094