Environmental Project's Achievements Reports Query System

Feasibility study on the biomass energy potential, and the promotion of collection and treatment of sludge from kitchen waste, night soil, piggery waste and sewage.

Absrtact	The objective of this project is to assess the feasibility of generating biomass energy through co-treatment of 4 major organic wastes in Taiwan, namely kitchen waste, night soil, piggery sludge and sewage. Through implementing this project, the following tasks have been completed: 1.Investigated the major sources of kitchen waste, night soil, piggery sludge and sewage generation, and assessed the possibility of sending the four types of waste to common treatment facilities, through carrying out a questionnaire survey involving 500 entities. With this survey, it is found that in the three counties (Pingtung, Yunlin and Changhua) where half of the swine population in Taiwan is located, there are close to 2,500 cubic meters of organic sludge requiring clearance and treatment daily. In addition, in the northern region, close to 200 tonnes daily of kitchen waste will still require proper treatment before 2012. 2.Visited the wastewater treatment plants of the swine farms to compile statistics on their wastewater discharges not meeting the effluent standards. It is observed that accumulation of sludge in their digesters to be the main reason why sometimes their discharged wastewater failed to meet the effluent standards. 3.Visited 21 domestic sewage treatment plants to assess their treatment capacities, and the feasibility of co-treating other organic waste within their facilities. 4.Conducted integrated assessment and concluded that construction of integrated treatment facilities to co-treat the four major organic wastes can be a feasible strategy to cope with the waste treatment issue. Feasibility study was then conducted on the technical, environmental, public administrative, economic, and financial aspects of constructing such facilities. 5.Completed the draft implementation plan for co-treatment of major organic wastes which includes the implementation milestones, budget and relevant implementation measures. Three public seminars were then conducted to solicit comments on this draft implementation plan, with each seminar attended by about 70 interested parties. The comments received through these seminars would be used as important inputs in the implementation plan revision process.
Keyword	anaerobic digestion, kitchen waste, nightsoil, piggery waste, sludge, biogas

Absrtact

The objective of this project is to assess the feasibility of generating biomass energy through co-treatment of 4 major organic wastes in Taiwan, namely kitchen waste, night soil, piggery sludge and sewage. Through implementing this project, the following tasks have been completed: 1.Investigated the major sources of kitchen waste, night soil, piggery sludge and sewage generation, and assessed the possibility of sending the four types of waste to common treatment facilities, through carrying out a questionnaire survey involving 500 entities. With this survey, it is found that in the three counties (Pingtung, Yunlin and Changhua) where half of the swine population in Taiwan is located, there are close to 2,500 cubic meters of organic sludge requiring clearance and treatment daily. In addition, in the northern region, close to 200 tonnes daily of kitchen waste will still require proper treatment before 2012. 2.Visited the wastewater treatment plants of the swine farms to compile statistics on their wastewater discharges not meeting the effluent standards. It is observed that accumulation of sludge in their digesters to be the main reason why sometimes their discharged wastewater failed to meet the effluent standards. 3.Visited 21 domestic sewage treatment plants to assess their treatment capacities, and the feasibility of co-treating other organic waste within their facilities. 4.Conducted integrated assessment and concluded that construction of integrated treatment facilities to co-treat the four major organic wastes can be a feasible strategy to cope with the waste treatment issue. Feasibility study was then conducted on the technical, environmental, public administrative, economic, and financial aspects of constructing such facilities. 5.Completed the draft implementation plan for co-treatment of major organic wastes which includes the implementation milestones, budget and relevant implementation measures. Three public seminars were then conducted to solicit comments on this draft implementation plan, with each seminar attended by about 70 interested parties. The comments received through these seminars would be used as important inputs in the implementation plan revision process.

Keyword

anaerobic digestion, kitchen waste, nightsoil, piggery waste, sludge, biogas