Efficiency of environmental resources is one of the goals of the sustainable development of a building and its sanitation. Sanitation efficiency was sought through hybrid offsite system, which was a decentralization of sanitation services. This study proposed a hybrid onsite system combining phytoarchitecture and phytosanitation, which empowers renewable building plants to improve resource efficiency, as well as sustainable building environmental health. Based on various empirical studies on sanitation management in rural and urban areas in many places, this retrospective study identified three wastewater disposal efficiencies. It was through quantity distribution, environmental media in which the greywater could be discharged, and quality treatment. The results marked the feasibility of wastewater services for greywater treatment, which served at least 75% of the wastewater quantity. Its main contribution was related to the distribution of discharge to all environmental media, and the improvement of the quality of greywater at its disposal. Building plants could be used for hybrid onsite system, thereby making these plants multifunctional to maintain the quality of the building environment. This hybrid onsite phytosanitation system covered various feasibility features compared to other existing systems. Implementation was flexible for new provisions and adaptation to existing systems for both urban and rural areas. Thus, the service maintained sustainable buildings and environmental health.

Naphthenic acids are a group of polar organic carboxylic acids that are present in crude oil naturally. They are cycloaliphatic carboxylic acids which have 10 to 16 carbons, which gained importance since the early twentieth century because of corrosion in oil refineries. Moreover, they are the most important environmental pollutants caused by oil extraction from oil sand reserves. Heavy crude oils which have high concentration of naphthenic acids are usually considered as poor-quality oil and sold at a lower price. Often, the high concentration of naphthenic acids in crude oil reduces the life of the equipment which are used in the exploration and refining process because of corrosion. Hence, researchers are increasingly interested in the chemical properties of naphthenic acids and the acidic components of the crude oils. The most popular methods for the identification and analysis of naphthenic acids are liquid and gas chromatography (GC), liquid-liquid extraction, Fourier transform infrared spectroscopy (FTIR), and solid-phase extraction (SPE). Naphthenic acids are the most important environmental pollutants caused by oil extraction from oil sand reserves. Previous studies have revealed that naphthenic acids can be absorbed by fish, but their distribution in different tissues of fish has not been specified. Experimental samples showed the highest toxicity to fish, while there was less toxicity to invertebrates and algae. Moreover, naphthenates have various industrial utilizations; they are used in synthetic detergents, corrosion inhibitors, lubricants, fuel and oil additives, wood preservatives, insecticides, fungicides, pesticides, wetting agents, napalm thickening agents, and oil desiccants that are utilized in painting and treating wood surfaces.