Planning Of Sewage Sludge Treatment Plant Poso Regency

. In order to process the fecal sludge that is collected from the residents of Poso Regency, a Sewage Sludge Treatment Plant has been built. For the purpose of treating sewage sludge, this facility is one method utilized to enhance wastewater quality. There is a Sewage Sludge Treatment Plant in Poso Regency, however it is in disrepair and cannot meet current needs. In light of this, Poso Regency need cutting-edge technology for treating sewage sludge. The goal of this research was to establish the average entry of fecal sludge and its volume for Poso Regency to create an appropriate system that meets all requirements set forth by the Ministry of Public Works.


Introduction
Comprehensive management is required to expedite a region's growth. Planning for urban development requires the implementation of environmental management initiatives. The severity of environmental degradation will have a substantial impact on human survival (health), economic activity, as well as social and cultural order.
Pollution will become more severe in areas that are becoming more densely inhabited and have more complicated operations. If wastewater is not managed effectively, it can contribute to a decline in environmental quality. In urban areas, the impact of home wastewater is comparable to that of industrial wastewater. Domestic wastewater is waste water resulting from the activities or operations of residences, offices, apartments, businesses, restaurants, and dormitories. This effluent consists of pee, feces, and residual water from bathing and other domestic activities.
Maintaining a clean environment and implementing proper sanitation are crucial measures for preventing the transmission of disease and lowering the pollution caused by human waste (sludge). This method includes the management of sewage disposal so that it can accommodate and process feces in accordance with technical, economical, and environmentally friendly standards, beginning with the collection of feces from each residence, decomposition of waste, and final processing at the Sewage Sludge Treatment Plant (SSTP).
The importance of the construction of the Sewage Sludge Treatment Plant (SSTP) is not only limited to the level of the sludge building but also can accommodate and treat the fecal sludge so that it does not cause health problems or environmental comfort, anticipate the adverse impacts due to an increase in the volume of fecal sludge and can effectively and hygienically address the sludge problem (multipurpose).
Poso Regency currently has a Sewage Sludge Treatment Plant (SSTP), however it is in a condition of disrepair and hence cannot be used to receive and treat fecal sludge from septic tank drainage. To improve the safe treatment and disposal of waste, the SSTP in Poso Regency needs careful planning.

2.
Research Method A.

Literature Review
The literature review stage is the process of collecting data by conducting research on various literatures sourced from books, notes and reports related to the problem being researched.

B. Data Collecting
Some of the data that needs to be collected including: 1. Secondary Data -Data on the population of Poso Regency -Data on the discharge of fecal sludge entering the SSTP of Poso Regency 2.
Primary Data -Capacity of trucks transporting fecal sludge in Poso Regency -Field documentation

C. Data Processing
The collected data will be examined to gain information on the quantity of fecal sludge and to determine the dimensions of the SSTP planning for the pond system according to the SSTP planning methodology. D.

Analysis of Data Processing Results
Calculate the volume of feces produced by residents of Poso Regency, calculate the percentage of fecal sludge that can be accommodated in the SSTP based on the volume of feces produced by residents of Poso Regency, and design the dimensions of the SSTP planning in accordance with the SSTP system planning procedure.

Determination of SSTP Location
The current IPLT design is Zone 1, which service the districts of Poso Kota, South Poso Kota, North Poso Kota, and Lage. There is currently a waste treatment plant, Kalamalea SSTP, located in Madale Village, Poso District, North Kota. This SSTP was established in 2008 using funds from the district budget, but it is currently in disrepair. The anaerobic system utilized by this SSTP is comprised of Imhoff Tanks The location of the new SSTP is near Poso Kota, the service area, but far from settlements.
Satellite Image Map of the location of the old SSTP and the plan for the new SSTP can be seen in Figure 3.1 and the Land Plan for the Location Plan can be seen in Figure 3.2 In planning the SSTP in Poso Regency, the following system was chosen: Although the land requirement for SSC requires more land than Imhoff tanks, the reason for choosing this treatment system is that the operation and maintenance is quite easy and maintenance costs are quite cheap compared to other processing systems.

Sludge Discharge Calculation
The SSTP capacity can be determined by using the following formulation:

Collection Tank Planning
The receiving building unit serves as an intermediary between the excreta truck and the processing unit. The shape of this building can be in the form of a pond or a channel. If it is in the form of a pond, it can serve as a temporary storage, whereas if it is in the form of a channel, it will only deliver fecal sludge to the treatment unit.

3.6.
Anaerobic Pond The depth of the anaerobic pond is between 2 -4 m. At this depth, anaerobic conditions will be created, and the soil will be able to accommodate (30-40) liters of mud per person per year. The holding time changes based on the hot or cold temperature at the SSTP construction site.

Facultative Pond
The wastewater that has been treated from the Anaerobic Pond is then channeled to the Facultative Pond for the next step. This pond undergoes a transformation of organic matter into new CO2, water, bacteria, and algae. Algae grows because there is oxygen in the top layer of the pond and the penetration of sunlight. The term facultative refers to a combination of aerobic and anaerobic conditions. Where aerobic conditions are in the top layer, and anaerobic conditions are in the bottom layer/bottom of the pond. The depth of the pond is 1-2 m. The facultative pond can treat waste with a BOD load of between 40 -60 gr/m3. How well the pond works depends on how long the waste has been there (detention time), which is usually between 7 to 50 days. With this amount of detention time, the BOD can be reduced by 70-90% and the coliform concentration can be reduced by 60-99%. (Mara, 1975).

Maturation Pond
The maturation pond is shaped like a holding pond, with dimensions (2-4): 1. The optimal pond depth to maintain aerobic conditions is between (1-2) meters. A maturation pond has a retention time of 5-15 days. To prevent water from leaking out of the pond and into the ground below, the bottom of the pool must be completely waterproof.

Sludge Drying Bed
Sludge Drying Bed is a building structure in the IPLT system that drains stable sludge from the Settling Pond and Anaerobic Pond. The sludge drying process will take place inside the Sludge Drying Bed, and the resulting sludge can be used as compost.