Except as otherwise provided in this chapter, garbage, rubbish, refuse, industrial waste and commercial garbage may be disposed of on the premises or site where produced in the unincorporated territory of the county by means of grinding and discharge into a sewage system, feeding to hogs or other animals, incineration or burning, composting, burial, reduction or salvage, provided, however, that such method of disposal is performed and completed in such manner as to discourage the harboring and breeding of rodents and insects, as not to objectionably and unreasonably pollute the air, as not to constitute a fire hazard, and as not to result in such unsightliness of the premises as to result in the depreciation of the value of adjacent property. (Prior gen. code 3-69.0)